For whatever reason my battery life is only being reported in 10% increments. Anyone have any idea as to why? AFAIK, it hasn't been removed, right? Searching didn't turn up anything.
Also my battery life seems shorter, but it could be the battery.
The backlight issue has been there for a while and I've tracked it down to installing HTCHome (the one from this forum) How can I fix this? Uninstalling seems to fix it and i've tried to save and recopy the exe and dll for the backlight, but recopying didn't work.
I haven't installed much recently except for the Diamond large start menu and Adobe 2.5 from the diamond. Further back I installed the 2.0 task manager with big buttons. But I don't know how long it hasn't been working right.
I'm using DCD 3.1.2 and radio 3.35 on an xv6800.
10% increments are the WM6 default. A special battery.dll was created [I believe by no2chem] and integrated in the previous DCD ROMs.. but for some reason it was pulled.
Battery life with 3.1.2 has been fine. It's your battery. Be sure to keep it well charged*, never let it dip below 30%! If you notice it's wearing thin -edit- it may simply be the indicator reading your battery incorrectly, in which case a full discharge / recharge will allow the phone to more accurately read the charge level. Regardless, your battery is under warranty and I suggest taking advantage of that and starting fresh with a strong initial charge.
Could you be more specific about this backlight issue?
*battery is optimally stored [for longest life] around 40% capacity.
The 1% battery dll was not added to 3.1.2 by accident. It's fixed in the next release. In the mean time, you can manually add it to the 3.1.2 kitchen by going into the 3.0.4 kitchen's OEM\OEMDrivers folder and copying the battery.dll and battdrvr.dll folders to 3.1.2 kitchen's OEM\OEMDrivers folder overwriting the ones in there.
neophyte.vii said:
Battery life with 3.1.2 has been fine. It's your battery. Be sure to keep it well charged, never let it dip below 30%! If you notice it's wearing thin you can try a deep cycle [24-48 hrs] with the phone OFF. Regardless, your battery is under warranty and I suggest taking advantage of that and starting fresh with a 24-48 hr initial deep charge.
Click to expand...
Click to collapse
I must comment on this with my questions because there are so many theories going around on what the proper way to handle this is...
first question.. you say don't let it go below 30%??? I thought it was GOOD to have it drained down to nothing every once in a while then doing a full charge?
second question.. DEEP charge? 24-48hours? seriously? I know it's good to always start with a full charge on the battery but does it really matter going beyond the full mark (a few hours I think?)...
Reason I'm really curious about this is because I just had VZW send me a new battery but I haven't unpacked it yet because I wanted to make sure I had the time to give it a good initial charge (over night). I'm not so sure I can go 24-48hrs without my phone but if it really makes a difference I might consider it?
I've noticed on my phone once it hit's 30% itll drop to 0% fast and i cannot use my phone for a couple hours because it'll take forever to hit 5% to turn the radio on
Well, since you took me up on it I am doing some academic research on the mechanisms Li-ion batteries use..
I do work in a cellphone store, and had the following experience with my battery:
First battery, charging method was improper and under regular use lasted no more than 7 hrs resulting in multiple charges per day.
Replacement battery came in, and underwent a lengthy initial charge because I had a second titan handy. 48 hrs.
I was amazed to find my battery life at around 3 days regular use.
I kept my phone charge above 30-40%, charging _regularly_ [once all night, with occasional top-ups during the day] and find the capacity has not changed.
Take from that what you will. Certainly, the length of time I charged my battery initially was probably not strictly necessary, but.. I'll do some more research and report back.
FYI, the majority of people with dead batteries who walk into my store are typically under the impression the batteries need to be near-fully [or fully? which is it, huh?] drained before recharge.
Which is _incorrect_ as it is only NiCad & Nickel Metal-Hydride batteries that suffered the memory effect.
It is worth mention that my first battery was often dying, which only seemed to exacerbate the issue.
Most make the mistake of running it down because previous generations of batteries worked that way. I have a dock that I got months ago (can't remember from where, but you can find it on the forums) that charges the device and a spare battery in a 2nd slot at the same time. That gets around the issue of not having your phone while the battery charges.
" How to prolong lithium-based batteries"
http://www.batteryuniversity.com/parttwo-34.htm
battery.dll and 0% battery
I completely screwed up. I was messing with the battery.dll file and ended up witout any battery monitoring whatsoever, and I'm not sure if the battery is even charging.
I restored my most recent backup (Sprite) and the battery is still "no status"
I took the battery out and reset, no luck.
I tried to flash a new rom, and I get [error 220] "battery less than 50% ...."
I know that the battery is at least 80%, so I figured that the battery problem is not letting the RUU run.
Is there a way to bypass the RUU error's,
I just yesterday lost my spare SDcard that I used for flashing. So that's out.
The only card I have is an SDHC (4GB)
anyone have any suggestions???
My ignorance is once again confirmed. a simple hard reset fixed the trick.
I completely screwed up. I was messing with the battery.dll file and ended up witout any battery monitoring whatsoever, and I'm not sure if the battery is even charging.
Click to expand...
Click to collapse
It's a simple copy/paste. You copy the 2 folders out of 3.0.4 OEM\OEMDrivers and paste them into 3.1.2 OEM\OEMDrivers overwriting the current ones in there. Then you just cook your rom like usual and flash.
JeffersonDavis said:
I completely screwed up. I was messing with the battery.dll file and ended up witout any battery monitoring whatsoever, and I'm not sure if the battery is even charging.
I restored my most recent backup (Sprite) and the battery is still "no status"
I took the battery out and reset, no luck.
I tried to flash a new rom, and I get [error 220] "battery less than 50% ...."
I know that the battery is at least 80%, so I figured that the battery problem is not letting the RUU run.
Is there a way to bypass the RUU error's,
I just yesterday lost my spare SDcard that I used for flashing. So that's out.
The only card I have is an SDHC (4GB)
anyone have any suggestions???
My ignorance is once again confirmed. a simple hard reset fixed the trick.
Click to expand...
Click to collapse
Jefferson - To bypass the RUU error - Put your phone in bootloader mode (POWER + CAMERA + RESET) Tricolor screen. Now plug the phone into the PC and run the RUU. It should run fine.....
GC - The RUU won't run with the phone already booted into windows cuz it tries to read the battery level and can't....
GC - The RUU won't run with the phone already booted into windows cuz it tries to read the battery level and can't....
Click to expand...
Click to collapse
Oh right...it's been so damn long since I've flashed with an RUU I forgot it's dumb like that and needs 50% battery.
neophyte.vii said:
" How to prolong lithium-based batteries"
http://www.batteryuniversity.com/parttwo-34.htm
Click to expand...
Click to collapse
I guess the part about having to "deep charge" for 24-48hrs is not accurate...
http://www.batteryuniversity.com/partone-12.htm
Lithium-ion is a very clean system and does not need priming as nickel-based batteries do. The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days.
Click to expand...
Click to collapse
GC and other's thanks for the replies! I've been busy with school (NOW I"M DONE, for a while!!!) and then on vacation.
My titan seems to be having charging issues so it's going to verizon to be checked out.
Any ideas about HTCHome?
Oh yeah, the other thing:
WinMo couldn't be more annoying with it's battery warnings!!!! I swear half my low battery time is spent trying to shut em up.
Related
I am having a terrible time with the battery on my new Touch Pro. My battery goes dead in about 2 hours and unless I turn it off completely, I cant seem to get it to charge.
I finally ran the NuePower driver to see what my power drain is vs. my charging ability. I have attached a screen shot.
The phone can charge at 439 mA while connected to my laptop. The drain is at 523 mA when the internet is active.
When the internet is not active, the drain drops to 220mA which is enough to charge the phone.
I have verified that WIFI isn't turned on. I have also turned off Bluetooth and it doesn't seem to have an impact.
I had a mogul for years and used it in this way and never had battery problems. The phone would easily last all day.
Has anyone else seen this and if so, do you have any suggestions?
The only thing that really drains my power on my HTC Pro is ActiveSync. A quick fix is to use the Adavanced configuration tool and change the power consumption options to your liking. Also I heard changing to a new theme or Rom helps the battery last considerably longer
I had the same problem with my brand new TP. the battery only lasted 4 hours on standby,and used to get really hot. I only had it for a couple of days then I took it back to the store, and got a new one. The new one is a lot better and doesn't get as hot.
hex9048 said:
...I took it back to the store, and got a new one. The new one is a lot better and doesn't get as hot.
Click to expand...
Click to collapse
A new battery or a new phone?
took about a week for my battery to get "broken in" and at that point i was going about14-18 hours with TF3D running. I am now using Spbmobile shell 2 (really just waiting for SPB MS3) and i can go nearly 2 days now with just texting, a few calls, and checking email and internet a few times. It will last for a full 24 hours with heavy use as well.
When I first got my Sprint TP I only got about 7 to 8 hours of battery. What I did was to disable Rev A on the phone. Now I get about 24 to 30 hours
Well this is pretty common on just about every forum who discusses the TP....
My battery is much better now that I flashed the MightyROM...Apparently he has some power tweaks in there that actually work...
I also found a slightly bigger battery that fits inside the standard case on Ebay...
I now get through the day on a single charge provided I don't make a zillion calls all day...
chefcesarpr said:
When I first got my Sprint TP I only got about 7 to 8 hours of battery. What I did was to disable Rev A on the phone. Now I get about 24 to 30 hours
Click to expand...
Click to collapse
Sorry, I am new to this forum and phone (1 week old). What exactly do you mean by "disabling Rev A?" I know from reading the threads that switching to a different ROM would help however since I am a newbie, I dont want to risk flashing my brand new phone and potentially messing it up. Thanks for any help!
Disabling Rev A on a Sprint Phone, will make it go back to EVDO rev 0. Is not as fast as Rev A but is a lot more stable and is better for the battery. To do this you have to get your msl code, I'm attaching the utility that I use to get my code. Just install it to your device memory. when you run it tap "get spc/msl, tap yes to the warning and write down the number that it will provide for you, that's your phone msl. Now tap on Launch EPST and hit edit, enter your code, on view info go to "Data Parameters" and there you will see Rev.A, disable it and hit menu and Ok, reset your device and ready.
You may need Net Framework 3.5 for this app to work properly
I did not wrote this app nor I take credit for it.
chefcesarpr said:
Disabling Rev A on a Sprint Phone, will make it go back to EVDO rev 0. Is not as fast as Rev A but is a lot more stable and is better for the battery. To do this you have to get your msl code, I'm attaching the utility that I use to get my code. Just install it to your device memory. when you run it tap "get spc/msl, tap yes to the warning and write down the number that it will provide for you, that's your phone msl. Now tap on Launch EPST and hit edit, enter your code, on view info go to "Data Parameters" and there you will see Rev.A, disable it and hit menu and Ok, reset your device and ready.
You may need Net Framework 3.5 for this app to work properly
I did not wrote this app nor I take credit for it.
Click to expand...
Click to collapse
Thanks alot for your help! I actually used a cab that I found here or on PCC that has worked great for the first day. I pretty much went the whole day without charging which hasnt happened since I got the phone last week. However, after forgetting to unplug the charger to my phone last night, I woke up to an unresponsive phone. I know I have read that problem with other people. So I just wont charge it overnight. Well back to the battery, this cab seems to work quite fine so far. Here it is in case other people want to give it a try and maybe let other people know about your experiences.
hi I used to have this problem too. at least until 2 days a go. my battery only last for 10 hours. That was the best my battery can reach. then i find that htc.com release a new update rom. i upgrade my rom then as suggested by some forum i discharge my battery till my TP turned off it self
They says to ensure that TP cannot boot up again when we press the power button. The sign is a red text saying "battery is too low..... bla bla bla".
Then discard the SIM card (if any), Then charge the phone at least 8 hours (12 hours for best result). You SHOULD NOT turned on the phone while charging.
The result :
I do this step at march 18 2009, 10 Pm. Finished charging with 100% battery reading at 10 Am (march 19). After using it for about 2.5 hours calling, about 45 minutes GPS (Garmin Mobile XT), i still have 41% battery today (march, 20 2009 : 5 PM)
A good improvement for my TP. I will report the next days result.
May be some one would try this as well? hope my report could help.
Ps: im not sure that new rom is one of the factors causing this battery live improvement. so you may try this without updating rom
I posted this on another forum. Seems that some of these are shipping with defective batteries. Same thing happened to me earlier this week. Battery would only hold a charge 10-12 hours and I wasnt using it much at all. Took it back and got a whole new TP, this one's battery has been working just fine and I leave Bluetooth enabled and everything.
If you are having issues with the battery dying 8-12 hours in and you arent really using it, take it back and get a new one.
Battery problem
http://www.seidioonline.com/product-p/bacy20htch3-bk.htm
This took care of my battery problem. Dave.
Asphyx said:
Well this is pretty common on just about every forum who discusses the TP....
My battery is much better now that I flashed the MightyROM...Apparently he has some power tweaks in there that actually work...
I also found a slightly bigger battery that fits inside the standard case on Ebay...
I now get through the day on a single charge provided I don't make a zillion calls all day...
Click to expand...
Click to collapse
Where did you find this battery? can you point me to it??
bishop0114 said:
I am having a terrible time with the battery on my new Touch Pro. My battery goes dead in about 2 hours and unless I turn it off completely, I cant seem to get it to charge.
I finally ran the NuePower driver to see what my power drain is vs. my charging ability. I have attached a screen shot.
The phone can charge at 439 mA while connected to my laptop. The drain is at 523 mA when the internet is active.
When the internet is not active, the drain drops to 220mA which is enough to charge the phone.
I have verified that WIFI isn't turned on. I have also turned off Bluetooth and it doesn't seem to have an impact.
I had a mogul for years and used it in this way and never had battery problems. The phone would easily last all day.
Has anyone else seen this and if so, do you have any suggestions?
Click to expand...
Click to collapse
I had issues with this when I got my Touch Pro. I had to charge it about 3-4 times a day. Now, I charge it 1-2 a day. This is how I managed to achieve that.
First, I bought a Seidio 1500mAh battery on ebay. This gave me a little extra juice. And no need for a bulky back cover. http://cgi.ebay.com/Seidio-1500-Bat...wItemQQptZPDA_Accessories?hash=item35a3e9b967
Then, I used Codybear's ASKicker to stop Active Sync from running in the background...it eats up juice. http://forum.ppcgeeks.com/showthread.php?t=72242
miriror: http://rapidshare.com/files/268159114/SHKCustoms_-_ASKicker_Beta1.cab
Con: you won't be able to activesync- this app prevents it from starting up.
Now comes a super program that made a huge difference, Nuerom's DynamicClock http://www.nuerom.com/BlogEngine/page/nueDynamicClock.aspx This useful app slows your clockspeed down so it won't utilized alot of your battery. You can also keep it at max speed-but watch your battery drained faster.
For example: I have the app activated it now and it reads: [email protected] (with backlight on 245/[email protected])-now set at default:[email protected] the voltage...depending on how much apps you are running and installed- you might not noticed the sluggish.
Con: Some of your apps may require higher speed, so you might have to change the speed back- but it is all of matter of just making a quick change.
I also recommend G-light. Get it here: http://www.freewarepocketpc.net/ppc-download-g-light.html This useful app, adjust the backlight based on the environment. I don't have to ever adjust the background manually. This saves the battery by lowering the backlight.
All these apps (and batter) have made a HUGE difference. When I did a hard reset, i noticed that the battery went from 100% to 50% in about 1hour with minor use. After installing the apps in- it went from 100% to 80%...again it will vary depending on your apps you have installed.
Hope this helps.
DISCLAIMER - I am just putting this in here so that if anyone gets any funny ideas ... Whatever you read/use in this How-TO Post is at your own RISK. The aim of this post is to help others who had the same issues as me when they were abroad ... and were stuck without a mobile Running MGLDR 1.13 and DFT stock ROM (WP7) and a USB cable but no other chargers ... If the OS doesn't boot you WON'T manage to charge via USB UNLESS you follow this HOW TO GUIDE (it's the ONLY ALTERNATIVE YOU HAVE OTHER THAN BUYING A CRADLE CHARGER) ... it WORKS 100% but I am fed up of finnicky people emailing /posting / trying to play the "experts" on the matter when they know nothing about the matter
Dear all
After going through all sorts of Registry fixes which were momentary in nature. I decided to find a viable alternative which does in actual fact work with all current WP7 builds and all MGLDR's provided with a USB Storage option.
It has been said that the WP7 Software does not charge the battery to its full potential. I also incidentally ran into the problem of charging the mobile when the battery died. Primarily because the mobile loads ... restarts ... loads ... restarts and you keep on "praying" until the OS boots to get it charged.
Alternative fixes so far which worked for me were:
- Adding android to your SD Card ..booting in android and charging it in android mode
- Charging it in Cradle Charger
- Some people even pulled out 2 wires from a USB cable (+ve and -ve) to get their phone on again (crazy and dangerious)
- MGLDR 1.12 hangs when trying to charge mobile while it is off.
- MGLDR 1.13 reboots (as a momentary fix) in order to avoid the hanging caused in 1.12
Problem is
- I can't stand the fact that we have to have 2 OS'es to get it charged properly
- I can't stand the fact the we have to remove the battery in order to get it charged externally via cradle charger
So we have to adapt to the present circumstances unfortunately. If nothing, and the fix does not give you more battery life, this method avoids you from
- buying/carrying a cradle charger with you when abroad.
- having a dual boot system (WP7 / Android) on your phone
- making you do crazy/quick fixes such as the USB cable thingy mentioned above ... (don't try it)
no need for anything of that!
HOW TO:
So in a nutshell if you drained your battery too much and don't have a cradle charger ... with the added bonus that you may get improved battery life out of WP7 is the following.
- Boot into MGLDR setup menu (hold the end call button at start up)
- Boot your mobile and hold the "End Call button" to go into the MGLDR setup screen.
- Choose USB Storage menu
- METHOD A - Let the mobile Charge for 6 hours (typically overnight would be ideal) (Note: It will not over-charge and it will not damage your battery.
OR
- METHOD B - Charge the mobile for 4 hours (to keep mobile on overnight) and charge the last hour in usb-mass storage mode. This has the added benefit that you do not get your screen on for a long time. This will not damage your battery and those of you who are worried about over-charge can go for this alternative and not take any risks.
- NOTE that you will NOT get the charging indicator ON in this mode. PRECISELY that's the whole point of charging in this mode, the battery will charge to its fullest as it is not under the influence of the WP7 software. It is like as if you put the battery in a cradle charger and charged it outside.
- When you wake up ... hit the back button to go to main menu and choose RESET option to reboot your mobile : ) and voila!
RESULTS:
- I got improved battery life charging the mobile in this MODE. I got 36 hrs + of battery life (normal usage) which is very good.
ADDED BENEFIT: QUICKFIX FOR DEAD BATTERY - NO CRADLE CHARGER - NO DUAL BOOT
- There seems to be mixed feelings about this as some of the readers have reported no discenable difference in battery performance. While I will not contradict these people, I got improved longevity from the HD2's battery. Clearly the OS is reporting the battery level badly. If NOTHING this method still serves as a quick fix
- if you drained your battery and cannot get your HD2 on again
AND
- You Do not own a cradle charger
- Registry did not work for me.
SETTINGS - WHICH IMPROVE BATTERY LIFE:
- You can optimise settings as follows in order to get my same results, again I hear many of you not wanting this as it turns of features from their PDA but as I said above, we have to adapt for the time being:
Settings are -
- ROM DFT Stock ROM original build (issued 13/01/2011)
- Radio 2.15
- Screen timeout 30 seconds
- Screen brightness set to auto
- Wifi turned off (on only when needed)
- Bluetooth turned off (on only when needed)
- Location turned off (on only when needed)
- Data Connection turned off (on only when needing to check mail)
- Email sync turned off (not every 30 mins)
- 3g turned ON - UPDATED - I got better battery life with 3G ON but this may change from country to country so I suggest that you have a go with 3G being ON or OFF and see which is better for you....)
IF YOU USE THIS POST - HIT THE THANKS BUTTON - IT's the LEAST you could do!
Regards all
Alcatraz
Hi Alcatrazx,
sounds logical I´ll give it a try and report later, thanks.
pronor
Thx
Thx Bro!
Will try it later too. I'll report.
One question though... Do you need to do this everytime you charge your phone, or just the first charge?
Sounds interesting, I will try and report
tardcutt said:
One question though... Do you need to do this everytime you charge your phone, or just the first charge?
Click to expand...
Click to collapse
Sounds like you have to do everytime... If you reboot your WP7, the battery is under the influence of the software again and does not charge correctly. Beat me if I'm wrong
Very interesting. I will try it
It's a good idea for some times, but I would not use it as an every night thing.
I sometimes get calls or messages during the night (and usually they are important). Another thing is that if you use your phone to wake you up this will not work at all.
I hope WP7 development progresses and solves this issue in the upcoming updates.
Nevertheless it's a nice way of going by, and thanks for taking the time to test it and post about it.
PS: does the light turn green after 6hours of charging or not. Probably not, but worth asking .
Another solution should be to charge a second battery in an external charger...
pronor
Another issue with this "workaround" is that MAGLDR keeps the screen opened, which can cause some devices to overheat, so be cautious with this one. I say that an external charger is the smartest alternative. I actually use this method and it works perfectly.
karendar said:
Another issue with this "workaround" is that MAGLDR keeps the screen opened, which can cause some devices to overheat, so be cautious with this one. I say that an external charger is the smartest alternative. I actually use this method and it works perfectly.
Click to expand...
Click to collapse
Sorry to sound pessimistic, BUT, people have already reported clearly in other Threads that they have tried the solution of charging their battery using an external charger with no luck. I can't see how this is any different. In addition, 6 hours will probably kill your battery in the long run (overcharging) - I have queried HTC support about it in the past.
Simple enough mate! Though 6 hours of battery charging will probably make significant damage to your HD2 battery... HD2 normally will charge in about 1 and a half hour or 2 udner WM6.5 or Android!
Not bad idea though! Bravo..
Charging while in Android remains for me the most convenient option. I must say though that this battery issue in wp7 is not that obvious for me. The phone charges quite well in wp7 and only sometimes I feel the need for a restart, after which the percentage increases with 15, not more.
most chargers since the beginning of time have a battery cut off, when the charger unit detects the polarity is starting to reverse it switches off, of course i cant say for sure using the MAGLDR method would use this, potentially it could just be a case of "connecting two wires to a battery" which as you guys have pointed out would not been good, at worst your battery could get seriously hot, or potentially if you reverse the battery polarity enough you would have half of a battery thats unusable.
I think what should be taken from this however, is that like myself and other have been saying for a long time, if your battery is charged propperly it will last a long longer, people reporting empty batteries within 20 odd hours, in my opinion, either have dud batteries or are not charging them properly
the MAJOR plus side to this post is the ability to fix the empty battery restart issue, that alone makes this idea a gold star and should be stickied!
dazza9075 said:
most chargers since the beginning of time have a battery cut off, when the charger unit detects the polarity is starting to reverse it switches off, of course i cant say for sure using the MAGLDR method would use this, potentially it could just be a case of "connecting two wires to a battery" which as you guys have pointed out would not been good, at worst your battery could get seriously hot, or potentially if you reverse the battery polarity enough you would have half of a battery thats unusable.
I think what should be taken from this however, is that like myself and other have been saying for a long time, if your battery is charged propperly it will last a long longer, people reporting empty batteries within 20 odd hours, in my opinion, either have dud batteries or are not charging them properly
the MAJOR plus side to this post is the ability to fix the empty battery restart issue, that alone makes this idea a gold star and should be stickied!
Click to expand...
Click to collapse
People reporting these batteries issues my friend are people who are knowledgable enough to reach to xda-developers forums - i.e. people who have a pretty good understanding of what battery drainage is and whether their batteries are dying or not; who have installed a number of winmo roms, android roms etc.
there are roms that drain battery and others that handle power better. in the ports of Windows Phone 7 for HTC HD2 there is an issue with battery drainage, and thats a fact.
There is no issue with bat drainage but with false bat stat reporting.
TheOnly1 said:
There is no issue with bat drainage but with false bat stat reporting.
Click to expand...
Click to collapse
Thats the true Sir but how fix it
TheOnly1 said:
There is no issue with bat drainage but with false bat stat reporting.
Click to expand...
Click to collapse
Thank you, thats what i was saying, apparently not very well
ndamianou said:
People reporting these batteries issues my friend are people who are knowledgable enough to reach to xda-developers forums - i.e. people who have a pretty good understanding of what battery drainage is and whether their batteries are dying or not; who have installed a number of winmo roms, android roms etc.
there are roms that drain battery and others that handle power better. in the ports of Windows Phone 7 for HTC HD2 there is an issue with battery drainage, and thats a fact.
Click to expand...
Click to collapse
your level of wit and sarcasm is actually quite funny given that you completely got my point wrong, the issue is quite simply this, the drivers for our HD2 are copies from another device, a device that is similar but not the same, the issues we have with battery are down to the fact that WE do not know if the battery is charged or not, at least at a first glance, and given the inability of many people on here to actually read threads and posts correctly it is not beyond the realm of possibility that many users dont know what level there battery is charged to, thus it may not be charged propperly.
If windows reports a full battery and its only half full then it will "appear" to empty twice as quick, now i think thats pretty clear for every one?
huismeester said:
Thats the true Sir but how fix it
Click to expand...
Click to collapse
we cant
our phone must be different to a degree than the phone this ROM is based off otherwise we wouldnt have the issue, lets all assume for a second we can actually start chopping and changing files in WP7 like WM. We would need to find some sort of driver that exactly matches our HD2 and i doubt that will happen.
whoever made the driver isnt going to just bring out a new version for an old peice of hardware that isnt supported by MS, perhaps if a new piece of hardware has the same battery controller as us something can be done.....maybe
huismeester said:
Thats the true Sir but how fix it
Click to expand...
Click to collapse
You have the following options:
1. Try the registry tweak. That worked for me and I actually have no battery issues for the last 2 weeks or so.
2. Charge the battery under Android during the night. That's pretty usable as you only need to reboot and you still have a fully functional phone Way better IMO than the USB Mass Storage trick.
I have a minimal Android installation on my SD (Angry Birds, you know) and it currently reports roughly the same values as WP7.
Hi,
I've got an idea to "fix" battery drain in WP7, as well as with Android.
I can't really assure you how much it's working as I do this each time I install WP7 since the first version of MAGLDR is out.
I started doing this because I had battery problems with magldr.
Here is the trick : In fact, when you install MAGLDR, Windows Phone 7 / Android, or even update WP7, the battery is not charging but draining (that kind of procedure eats a lot of power). But even if the installation ends with a 40% charge, the OS will be sure, at first start that it's almost 100% charged.
I think it's a reason why the battery goes empty faster than with Windows Mobile. It was default OS, with default configuration etc. so 100% was 100%.
So I think we must, at least once, charge the battery outside of the phone, with a dedicated charger. In that way, when WP7 will start, it will see the fully charged battery (100%, for real).
I think the OS will know, when the battery will be discharged, the real capacity from 100 to 0.
I hope it will help, and that I'm not wrong as I don't experience any real battery drain if I do this + camera trick since first version of WP7, and with any Android rom (except MIUI).
Hi
My solution is close to yours.
After each flash I let drop my battery until the phone died and you can't restart it under WP7
next I start to charge it under MARGL 5 min then i start WP7 and let it charge.
Now i'm sure that the phone have a good battery calibration.
My HD2, 2 years old, and with camera trick can stay 48 hours in 3G but only 24 hours in 2G??? WTF?
You're not completely right here, OS would not think that change at first boot is 100% charge, you can easily check that by booting first time on half empty battery and indicator will show about 50%.
But yes, battery stats might affect battery drain, so there is a button in MAGLDR something like "Clear battery stats", reboot to MAGLDR, charge to 100%, click that button, boot back to your OS.
intresting therys
What is we charged up to 100% and did a hard reset would that make the probum go away?
vartp said:
You're not completely right here, OS would not think that change at first boot is 100% charge, you can easily check that by booting first time on half empty battery and indicator will show about 50%.
But yes, battery stats might affect battery drain, so there is a button in MAGLDR something like "Clear battery stats", reboot to MAGLDR, charge to 100%, click that button, boot back to your OS.
Click to expand...
Click to collapse
Oh ok. Weird, each time I flash WP7 or Android, it tells me that I've got something between a 100% and a 90% charge, which isn't possible, after having installed MAGLDR, then flashed the new OS and waited for the first boot (really long with Android).
Nonethless, I flashed WP 7.5 with radio 5.66, and I'm experiencing a huge battery drain, even with camera trick & external charge.
Even Miui seems to last longer. And Android tells me that I have a 62% battery charge, and I restarted the phone on WP and it tells me that I still have a 76% battery charge.
Why don't I have the same charge estimation ?
Nevralgeek said:
Oh ok. Weird, each time I flash WP7 or Android, it tells me that I've got something between a 100% and a 90% charge, which isn't possible, after having installed MAGLDR, then flashed the new OS and waited for the first boot (really long with Android).
Nonethless, I flashed WP 7.5 with radio 5.66, and I'm experiencing a huge battery drain, even with camera trick & external charge.
Even Miui seems to last longer. And Android tells me that I have a 62% battery charge, and I restarted the phone on WP and it tells me that I still have a 76% battery charge.
Why don't I have the same charge estimation ?
Click to expand...
Click to collapse
well I can't answer that question but I would bet android is not the 1 that is giving wrong charge estamations in on bttfv2 and I was on v1 and never experienced fast battery drain I personally like the wp7.5 over the other os's so I'm dealing with the fast battery drain issue & random reboots as well I also think the to problems are related some how the random Reboots it never happens when on on a charger! I really think someone should go back to bttfv1 to test and figure out what went wrong when new registry edits was implemented or the new rom was cooked but anyway I read DFT is also working on a new rom I'm not sure if it will be for hd2 tho.
I'm really hoping the problem can be sorted on my last phone I got about 300hrs out of 1 charge but charging touck a wile on my hd2 charging seams to be pretty quick which might not be a good thing not sure. But last night I had it on charge almost 10 hrs after it was already 100% and when I finly got it off the chager it seamed to last a little bit longer
But on rough estimate I'm thinking it last 5 hrs witch is just horrible
vartp said:
You're not completely right here, OS would not think that change at first boot is 100% charge, you can easily check that by booting first time on half empty battery and indicator will show about 50%.
But yes, battery stats might affect battery drain, so there is a button in MAGLDR something like "Clear battery stats", reboot to MAGLDR, charge to 100%, click that button, boot back to your OS.
Click to expand...
Click to collapse
Where is this clear battery stats button you speak of?
kid1988 said:
Where is this clear battery stats button you speak of?
Click to expand...
Click to collapse
Unfortunately, it's a mistake. I've never seen any "clear battery stats" menu in MAGLDR. But I think it exists on ClockWork.
It's a shame...
Battery life 24hrs+
All,
After reading the above posts, I started practicing the following;
* Let battery drain more than 90% or until critical battery warning appear
* Charge in full
* Power of phone. As the phone power off, power off charger ( ... this action may be insignificant)
* Boot the phone to MAGLDR
* Select "Reset" option from the menu
* Phone reboots normally
I have been doing this for the last 2 weeks I guess plus more than 8 charge cycles and now my HTC HD2 lasts 24hrs+ at any rate.
... I am not a heavy user, but still, I have OutLook, GMail, FB, Twitter running 15mins sync interval. 10+ calls + 5/6 SMSs a day in average. My good'ol battery keeps me happy.
... hope this helps someone ...
I found that it was my choice in SD cards that was causing battery drain. The camera trick got me down to a battery draing of -200. I couldn't understand why I couldn't get down to -7. WP7 "seemed" to be performing fine.
Switched to PNY 16GB class 4 and I think WP7 has accepted it. Have had a few reboots, but nothing I can pin on the card yet. My battery life is amazing in comparison to before. W/ wifi and bluetooth turned off, I get a battery drain between -4 and -7. MUCH better than before.
I can't get Battery Tool to work to check the drainage on Mango, but I found out that having 3G enabled, Push enabled (set mail check on "upon arrival") is giving me the best battery life. I'm using Mango since yesterday morning 11 am until now (it's 9.42 here) and I have 31% battery left.
Average usage (but it's enough for me) with internet, mail sync, twitter, facebook and some pictures.
for the record, I did not use the 'camera' trick at all.
When I disable push, and have email check set to 'manual' i'm starting to have drains and I have to use the camera trick to keep it low...
I know everybody has different results.. but I just wanted to share this, see if others can relate to this
Its pretty strange this battery drain issue, i struggled with it for months with the last wp7 rom i used.
With this rom i struggled with sd card issues like everyone else, in the end i'd bricked 4 cards of differing sizes and the onlycard i had left was the tiny 2gb sandisk that came with my HD2.
Since settling on that card i've had no issues other than storage space and battery drain is a thing of the past which could suggest that card compatability is at the heart of the problem.
Its my guess that constant attempts at read/write failure may be going unreported by wp7.
Currently im seeing about 36hrs at my regular usage, i can stretch it to 48hrs if im careful.
My wifi is on throughout my working day, i make on average 6-7 calls and send and receive 10 or more txts along with a steady stream of people hub updates.
I'm happy in the belief that i don't have a battery issue, i just wish i had more space.
So much for my optimistic post earlier, one reboot messed up the battery read. 40% left and 2 hours of usage .... I give up
Sent from my HD2 using XDA Windows Phone 7 App
... try this for a change
KrewsialNL said:
So much for my optimistic post earlier, one reboot messed up the battery read. 40% left and 2 hours of usage .... I give up
Sent from my HD2 using XDA Windows Phone 7 App
Click to expand...
Click to collapse
... why don't you try this method http://forum.xda-developers.com/showpost.php?p=18770816&postcount=9
... sometime back I too had the same problem, but that all changed!
if you fully charge (100%)..your phone in wp7 , it will show erroneous battery drain,...you can rectify it by restarting the phone, then use the camera trick.
if you charge till 99%.it is ok, but 100%...you need to restart
pakure said:
if you fully charge (100%)..your phone in wp7 , it will show erroneous battery drain,...you can rectify it by restarting the phone, then use the camera trick.
if you charge till 99%.it is ok, but 100%...you need to restart
Click to expand...
Click to collapse
I haven't had that experience. Sometimes WP7 won't allow a full charge to happen though.
Something weird just happened.I was having Bluetooth problems.It wouldnt turn on.I then Flashed the DEv wifi plus Eu fix cab.It fixed my bluetooth but with some added treats.My battery life has more than doubled.Used to go less than 8hrs of normal use but now i hv gone 17hrs and i have around 50 % left.I didnt do any camera trick.Has anybody experienced this?
Hi, could anyone give me the link to Battery tool for WP7 Mango. Thank
phong1892 said:
Hi, could anyone give me the link to Battery tool for WP7 Mango. Thank
Click to expand...
Click to collapse
Here you go.
anseio said:
Here you go.
Click to expand...
Click to collapse
Thank you, mate
Interesting article on Rootzwiki:
Wiping Battery Stats is Pointless, Says Google Jan 13 2012 09:30 PM | Ashley Glenn in Articles
Over time wiping battery stats has become a regular ritual among the Android enthusiast community. Buy a new battery? Wipe your battery stats! Upgrade to a bigger battery? Wipe your battery stats! Change kernels or restore a nandroid backup? You know what to do: wipe battery stats! But this ritual may soon become a thing of the past thanks to Google engineer Dianne Hackborn, who sheds a light on the subject that puts the tightly-held practice of wiping battery stats in the same league as carrying a lucky rabbit's foot or throwing a pinch of spilled salt over your shoulder.
Recommending that users wipe their battery stats appears in so many places and as a cure for so many ills that it has become ubiquitous. Adherents to this practice will sit and wait for their phones to report a full charge, then use an app that deletes the batterystats.bin file or reboot into recovery mode and wipe it from there. This supposedly cures a number of ills such as battery scaling issues, poor battery percentage reporting, and any of a myriad other number of issues. The truth is, according to Android Framework Engineer Dianne Hackborn, that this file is a repository for information about system activity and that it actually takes care of itself without the need for user intervention. From Dianne's post:
Quote
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
It really can't be put more straightforward than that, folks. So rest assured next time you put a new battery in or flash a new kernel or restore an old backup that all you have to do to help your phone or tablet play nice with its battery is charge it to 100% and do nothing else. It really is that simple. But don't worry, enthusiasts - you'll find plenty of other reasons to hang out in recovery anyway.
Know of a sweet app, trick, mod, or hack for your Android device? Send us a tip! [email protected]
Sent from my MB870 using xda premium
This is interesting, so Google engineering will incorporate it into new OTA's? Or does this mean I've wasted time while flashing countless Roms?
Pixelation said:
This is interesting, so Google engineering will incorporate it into new OTA's? Or does this mean I've wasted time while flashing countless Roms?
Click to expand...
Click to collapse
I'm reading this as we've been wasting time.
Sent from my MB870 using xda premium
Not wasting time flashing countless roms. Just wasting time wiping battery stats. That's the way it looks to me. Personally, I've always thought wiping battery stats was nothing but a whole lot of voodoo. Never had the need for it, don't see why anybody else would either. Let the flames begin.
I knew it couldn't possibly have an effect on actual battery life, but I thought maybe the file collected information about the length of the battery to calibrate the meter (because let's face it, with the X2 battery bug it's pretty clear that it doesn't get the value directly from the battery).
Funny thing about calibrating when it gets to 100 though...if there truly is something wrong with the meter, why would you suddenly trust it to know when it's charged? This is why I'd always charge it for a little extra and go by the voltage meter.
So basically, I've seen a couple of different readings. I've always waited past 100% and in different ROMs I've seen 4192, 4196, 4198, & 4200 mah.
I use the extended battery, sooooo readings may vary between regular battery.
Pixelation said:
So basically, I've seen a couple of different readings. I've always waited past 100% and in different ROMs I've seen 4192, 4196, 4198, & 4200 mah.
I use the extended battery, sooooo readings may vary between regular battery.
Click to expand...
Click to collapse
I have an extended battery as well. Actually, I have two extended batteries and two regular batteries. Got the first one with my droid X, then a faulty extended battery (bad batch where the meter doesn't read right), then a replacement extended battery, then the one that came with my X2. No two are the same, but they should all max out near 4200 mV.
Edit: I use one extended battery.
Ok this screen is after install of CM 7 tonight, it reads 4205 mah, so why is it different, with different Roms?
Weird isn't it?
Pixelation said:
Edit: I use one extended battery.
Ok this screen is after install of CM 7 tonight, it reads 4205 mah, so why is it different, with different Roms?
Weird isn't it?
Click to expand...
Click to collapse
The stats can easily drift if you don't flash ROMs with your phone at 100% battery, hence why sometimes the calibration is needed [be sure to wipe stats when at 100% [either via app or recovery], best thing to do is fully discharge battery until auto off occurs and then fully charge with AC Wall Adapter and charge only screen, then when it hits 100% wait a few min, restart to OS to be sure it also says 100% [if not wait until it does and wait about 20 min longer] then restart to recovery and flash away [you could also wipe battery stats as part of flash if you do as stated before flashing]. I usually set it up so I fully discharge the phone [restarting to be sure a couple to few times] and then charge with phone off and charge only screen overnight and flash my ROM first thing in the morning right before I unplug it and unplug once I reach the point I am ready to restart device and do initial boot after flashing. Further details below...
Basically charge to 100% [or as absolutely close as you can get it [AC Wall charger is best unless you REALLY are forced to do it via USB and is best to charge via the charge only screen [phone is powered off and not booted in to the OS and all you normally see is just a battery filling on screen [and is fastest way to charge battery]]. Wait an additional 20 - 30 min after it registers 100% [this is to be sure the battery is absolutely topped off essentially] and I will generally do a restart as sometimes the battery may come back to less than 100% on a restart if your phone is not judging the battery right and is in need of calibration. If it does not register after restart wait until it hits 100% and wait the additional 20 min [you can cut out the initial 20 min wait if you want to do the restart to verify just wait the 20 min once you feel sure battery is as topped off as you can get it], then after wiping restart from recovery and unplug. Now be sure to drain the battery until auto shutoff [either stream media if in a hurry or through general usage. Either way wait until auto shut off.]. I usually will power the device back on and be sure it is not going to get back to the OS [if it even gets to boot logo I wait a few seconds and power it on again to be sure all I get is the boot vibrate on my device [some don't have this, but usually it's tablets almost all phones [and definitely both Motorola and Samsung do this]. I then charge it to full [again AC wall charger recommended as above and again with charge only, but as stated if you cant live with phone off or whatever you can do it with OS running as well. You are free to go as you wish after this second full charge really though if you do a couple more [dont have to be insane] it can help ensure the statistics get a good start.
As I believe I stated above the best way to avoid calibration as long as possible is to charge phone to 100% via phone off screen [with AC Adapter and wait the extra 20 min after it registers full before you flash [I will sometimes take it a step further, leave it plugged in while flashing my install zips and then once I go to restart system for the initial boot after ROM flash I will unplug the charger from the phone.
Hope this helps
My Nook is 10.5 months old and I have recently noticed it only hold charge for 2-3 hours.
I am still running 1.40 and rooted so I could block OTA. I haven't done any other modifications to the tablet.
Is this a common problem? I need to charge this thing everyday now, where before I could go several days without recharge.
Thanks for the help.
Steve
sgschwend said:
My Nook is 10.5 months old and I have recently noticed it only hold charge for 2-3 hours.
I am still running 1.40 and rooted so I could block OTA. I haven't done any other modifications to the tablet.
Is this a common problem? I need to charge this thing everyday now, where before I could go several days without recharge.
Thanks for the help.
Steve
Click to expand...
Click to collapse
haven't used stock in a long time, but is there an option to turn wifi off when the tablet goes to sleep? ur wifi might be sucking up power continuously if it doesn't shut off.
Yes, that is correct, Wifi can be switch off. And I have done that. But the drain has become very significant.
I am considering going for a warranty repair, but my guess I will get a refurb with another weak battery, and hassled because I have rooted and blocked OTA.
Are most folks just running off their chargers?
If folks have bad batteries are they replacing them themselves?
sgschwend said:
Yes, that is correct, Wifi can be switch off. And I have done that. But the drain has become very significant.
I am considering going for a warranty repair, but my guess I will get a refurb with another weak battery, and hassled because I have rooted and blocked OTA.
Are most folks just running off their chargers?
If folks have bad batteries are they replacing them themselves?
Click to expand...
Click to collapse
you can attempt to request for a new nook tablet placement. After two refurbished replacements with the same problem as my original NT. they sent me a new Nook Tablet and so far so good. It's worth a shot.
Came off the island today and went to the big green city. Stopped at BN and did some talking with them and also to the service center at the same time. The service center said they would send me a refurb. My 3-4hour of run time is way under the 11.5 hours you should get for the e-reader mode only. That fella felt like the battery developes memory and needed to be fully discarded to combat that occurring. I can not find any technical document that supports this idea. There are not NiCad batteries.
Anyway if I send my tablet in I will end up with 1.4.3 instead of 1.4.0.
When you get your replacement
Once you get your replacement, it's a good idea not to charge it until it show very low percentage on any nicad rechargeable batteries. When you charge it, don't remove it from the charger until it reaches 100%. Also don't have a habit of plugin it in when finish using it, plan ahead so that you can have a fully discharge battery before recharging. Your NT battery charge will hold a lot longer threw time if you do it this way. You also can try this app to see if it works.
sgschwend said:
Came off the island today and went to the big green city. Stopped at BN and did some talking with them and also to the service center at the same time. The service center said they would send me a refurb. My 3-4hour of run time is way under the 11.5 hours you should get for the e-reader mode only. That fella felt like the battery developes memory and needed to be fully discarded to combat that occurring. I can not find any technical document that supports this idea. There are not NiCad batteries.
Anyway if I send my tablet in I will end up with 1.4.3 instead of 1.4.0.
Click to expand...
Click to collapse
Good advise, thanks,
I put in some effort to side load the battery stats reset software and found a application call: Battery HD. I loaded this app instead. It provides a graph of the charge and discharge rate. From the graph I can see that my battery is OK. I became aware of some funnies going on when I woke up at 3 am and saw the display on. With the discharge rate as specified I now believe I have some application causing me trouble. I don't have much on the table, Titanium, MX video, Amazon apps.
I shut the unit off last night and it came back right to the same charge. Tonight I will leave it on and check the graph to see if there was an load and when. The application has a gross report on the power used separated by function instead of application. It also has a calibration test that tests the three main functions and reports the discharge rate.
Anyway, I will post what the nightly current hog is if I can find it.
Steve
sgschwend said:
Good advise, thanks,
I put in some effort to side load the battery stats reset software and found a application call: Battery HD. I loaded this app instead. It provides a graph of the charge and discharge rate. From the graph I can see that my battery is OK. I became aware of some funnies going on when I woke up at 3 am and saw the display on. With the discharge rate as specified I now believe I have some application causing me trouble. I don't have much on the table, Titanium, MX video, Amazon apps.
I shut the unit off last night and it came back right to the same charge. Tonight I will leave it on and check the graph to see if there was an load and when. The application has a gross report on the power used separated by function instead of application. It also has a calibration test that tests the three main functions and reports the discharge rate.
Anyway, I will post what the nightly current hog is if I can find it.
Steve
Click to expand...
Click to collapse
My friends NT has been having issue with screen turning on by itself. Seemed to narrow it down to aldiko app. Not sure why it's happening. Performed a clean install of CM7 and issue came back. I keep thinking it's hardware related, trying to convince him to try a different ROM, but he's stuck on using CM7. If you find a reason for your tablet screen turning on let us know so maybe I can help him get his issue resolved. Thanks...
Sent from my AT100 using xda premium
Vector2nds said:
Once you get your replacement, it's a good idea not to charge it until it show very low percentage on any nicad rechargeable batteries. When you charge it, don't remove it from the charger until it reaches 100%. Also don't have a habit of plugin it in when finish using it, plan ahead so that you can have a fully discharge battery before recharging. Your NT battery charge will hold a lot longer threw time if you do it this way. You also can try this app to see if it works.
Click to expand...
Click to collapse
That's actually bad advice for any lithium based battery - like the NT's lithium ion battery. LiON batteries don't like to be fully discharged and they don't like heat, especially heat when they are fully charged. That means avoid full discharges and avoid charging it to full every time, and do charge the battery more frequently (keeping the charge level between 20% and 80% for example). Partial discharge on LiON is just fine; they don't suffer memory effect.
Sent from my GT-I9100 using xda premium
Yeaper
rete said:
That's actually bad advice for any lithium based battery - like the NT's lithium ion battery. LiON batteries don't like to be fully discharged and they don't like heat, especially heat when they are fully charged. That means avoid full discharges and avoid charging it to full every time, and do charge the battery more frequently (keeping the charge level between 20% and 80% for example). Partial discharge on LiON is just fine; they don't suffer memory effect.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I have said it in past post, I need glasses. I totally missed this part while reading "There are not NiCad batteries" the word not always gets me.Sorry about that sgschwend. I did not even know, thanks for the info update.
Well, I always appreciate advice, my view is that it becomes a starting point and it is up to the reader to combine it with a working course of action.
As to phantom startup/turnons I checked last night and there wasn't one. I will continue till I find it. The summary screen does say what type of application is turning on so that should help. The only gotcha will be if the battery application changes how the tablet works to the point that the issue will not occur. I don't think this is very likely.
The battery application (battery HD) makes a nice graph so you can look at the slope and see what is going on, it also lists the run time for various activities based on the current battery charge. Interesting to note the Nook charger overcharges a bit and the battery does warm up some. When it cools down the charge is just under 100%. This is not an ideal situation, it would be better for the charger to slow to a point that the battery temperature is not elevated near the end of its cycle. Splitting hairs perhaps. My discharge rate matches the tablets specs even with the battery application running.
Second day of monitoring the device operated correctly. I did check and found that I have a Titanium backup batch job setup to run every day a 3 am. Which coincides with time I observed the device display turning on. I will move the time and see if the issue moves too.
Steve
Also turn off push notifications that certain apps have. They suck up a lot of battery. Install the Better Battery Stats app (search xda for it). Won't have to pay unless you want to. Monitor the partial wake locks to determine what apps are using battery during sleep.
I have a similar problem, i got a nook with cm7 and the battery doesn't last at all, i charged it yesterday and let it all night without touching it to see how long would it last and after 12 hours i got 30% and it says 70% of the battery was drained by the andoid os, it says that the processor was working for 2hrs!
i got it and stared looking for an answer to this problem and in less than 10 min it has drained 4% of the total charge, this didn't happened with the stock firmware so I'm thinking about trying jelly bean and if it doesn't get better i will have to go back to the stock firmware
Hwong, I think you hit it on the head. Last evening my NookT had a much higher current draw, loosing 20% in 12 hours. I saw this when I checked it a midnight. I had left the Nook with the battery monitor application in the graph mode, likely running as an active application instead of a "monitor" mode. Titanium Backup did run last night but it runs for such a short period it did not even show up on the graph.
So I really don't know which application or notification is causing me a problem but the issue I have had is like loosing 20% of my battery in a 6-8 hour period. Which to me looks like an application is running that shouldn't and the time I observed the screen on would do it too. As I started this post I am still on 1.4.0, rooted, OTA blocked with hidden commands.
I did a hard factory reset and wipped the caché, now my nook has been charged for 2 days on sleep mode with the wifi on.
I believe the problem was caused by an application, i believe it was the launcher and theme i was used, i re-installed it yesterday and the tablet started to drain battery quickly again so i cleaned the data used by them and uninstalled them.
The battery monitor widget use to say my battery would last 2 hrs of video playing, now it says it should last 8:30, closer to the 9hrs promissed by B&N.
It all about old sins. I found that I was jumping around in the normal Nook UI and not using the back button. So several things were still running in the background. Even though that little darling looks the same, that background stuff is a killer. I did a quick test with the battery monitor by leaving it in the graphic mode and sure enough the discharge rate went up 400%, just a dumb graph in the background plotting Voltage versus time. When I use the back button on the application graph, the current draws goes to near zero.
It really does a nice job of standby or sleep.
Maybe this will help.
You could use titanium backup to freeze the apps that you think could be causing more than usual battery drain and maybe narrow the issue down?:fingers-crossed:
sgschwend said:
It all about old sins. I found that I was jumping around in the normal Nook UI and not using the back button. So several things were still running in the background. Even though that little darling looks the same, that background stuff is a killer. I did a quick test with the battery monitor by leaving it in the graphic mode and sure enough the discharge rate went up 400%, just a dumb graph in the background plotting Voltage versus time. When I use the back button on the application graph, the current draws goes to near zero.
It really does a nice job of standby or sleep.
Click to expand...
Click to collapse