Update: I normally keep my microSD card mounted in my Prime. After doing some searching, I've seen a few reports of battery drain being bad when having an SD card mounted in the Prime and/or the Prime's dock. I unmounted my SD card and my battery life has greatly improved. Give this a shot if you currently always leave your microSD card mounted and have battery drain problems.
Has anyone noticed this wakelock killing their battery? My problems just started recently. I charged my phone overnight and did not use it all day. This wakelock was literally running the ENTIRE time my tablet was on - for over 12 1/2 hours. It brought my battery down to 80% without me ever turning the screen on. Has anyone else noticed this problem on their Prime, or does anyone have any ideas on how to solve this? The only thing I changed recently is I installed System Tuner Pro, which I just uninstalled to troubleshoot.
i would like to know how if i charge my dock up and then 2 days later connect it to my prime it lost 20 percent of its battery. Maybe the batteries also have a
discharge built in , IDK?????????????
Sent from my Transformer Prime TF201 using XDA Premium HD app
jetbruceli said:
i would like to know how if i charge my dock up and then 2 days later connect it to my prime it lost 20 percent of its battery. Maybe the batteries also have a
discharge built in , IDK?????????????
Sent from my Transformer Prime TF201 using XDA Premium HD app
Click to expand...
Click to collapse
I had that problem with the TF101. My dock battery would completely discharge in 2-3 days without ever being connected.
My TF201 holds its charge for weeks with losing more than a few %.
Asus really needs to get it together and develop some consistency with their tablets.
Update: I normally keep my microSD card mounted in my Prime. After doing some searching, I've seen a few reports of battery drain being bad when having an SD card mounted in the Prime and/or the Prime's dock. I unmounted my SD card and my battery life has greatly improved. Give this a shot if you currently always leave your microSD card mounted and have battery drain problems.
nyijedi said:
Give this a shot if you have battery drain problems and always leave your microSD cardmounted.
Click to expand...
Click to collapse
Do u mean unmounted?
demandarin said:
Do u mean unmounted?
Click to expand...
Click to collapse
Not exactly, but that sentence was definitely confusing. I just edited it for clarification. Thanks.
No difference here.
chamberc said:
No difference here.
Click to expand...
Click to collapse
Interesting. I wonder if the contents of the SD card makes a difference (i.e., I wonder if my Prime keeps continuously scanning my SD card for some reason).
Related
I am new to this tablet Arnova 10 G2 (101c). Got it like 2-3 days back. Trying to know it better, so don't flame me please.
I got the rooted firmware on through one of the bundled apps - arctools. So now, here are my questions:
1. Camera:
My camera works. But I can't see where it stores the pics. Even doing a media rescan in settings menu doesn't seem to help.
2. Internal Memory:
On the back it says the model is 4GB. But inside, when I am browsing in root explorer I see over 7 GB free. I have copied over 4 gigs of pdfs (books), and still have over 3 gigs free. Over 7 GB free space on internal SD normally translates to a 8GB model. This has got me perplexed.
3. Battery:
Installed battery calibrator. I drained the battery full until the tablet shut down by itself. Then I charged it to 100%. Used the battery calibrator to delete the batterystats.bin file. Then charged it until the light was green with the tablet off. Turned it on with charger unplugged.
I put it on a movie at about 60% brightness. After about 5+ hours, it was at about 55-60%. Then I took off the movie for some time, turned the brightness to 0, and was doing some browsing, and now I noticed battery at 65%. Battery usage details show spikes moving up while I was simply using it and no charger connected.
Is this normal? How long does it take for the battery to normalize?
Someone help me please. Even after 3 full charge-discharge cycles, my tablet when kaput from about 30 to 0 last night!
diablo009 said:
Someone help me please. Even after 3 full charge-discharge cycles, my tablet when kaput from about 30 to 0 last night!
Click to expand...
Click to collapse
Regarding the pictures I won't help you till I have the tablet but speaking of storage you clearly got the 8gb model if you're sure there's no external (micro sd ) memory counted
Regarding the battery it seems that you messed too much with it unnecessarily and now (guessing) the battery electronics freaked out or the li-ion cells got damaged because of a deep discharge.
try to use it normally charging from say 10-50% when needed to full and after some cycle maybe it will get better ?
this isn't the Arnova 10g2 (Philly tablet) your speaking of is it?
Sent from my HTC EVO 3D using xda premium
southphillysean said:
this isn't the Arnova 10g2 (Philly tablet) your speaking of is it?
Sent from my HTC EVO 3D using xda premium
Click to expand...
Click to collapse
Nah. I got this from a store here.. it says Arnova 10 G2 (non philly). Philly is a different version of the same.
przemke said:
Regarding the pictures I won't help you till I have the tablet but speaking of storage you clearly got the 8gb model if you're sure there's no external (micro sd ) memory counted
Regarding the battery it seems that you messed too much with it unnecessarily and now (guessing) the battery electronics freaked out or the li-ion cells got damaged because of a deep discharge.
try to use it normally charging from say 10-50% when needed to full and after some cycle maybe it will get better ?
Click to expand...
Click to collapse
I don't really know about this. All I did was a couple of full charge-discharge cycles, and nothing more.
And it showed ~7+ GB free on internal memory (without any sd card inserted).
Hi boys and girls!
I bought a TFP (with sn: C3O) less than a week ago from NetOnNet in Sweden. I'm loving it! Damn what a piece of hardware . But I did notice one thing. The only problem I had with it. When docked and sleeping, the battery would drain insanely fast!!
I found that many ppl pointed at the option; "Stay Awake - Screen never sleeps while charging". But making sure that it's unticked doesn't seem to be enough. After digging some more online. I found that ticking it and then unticking it again made all the difference! . And it did for me too!
I went from losing (not actual numbers) 12% battery/hour to losing only 0,2%/hour. Hope this info helps. And if it does, spread the word! .
Edit: I polished the numbers abit. My Prime is crazy efficient nowadays, and have been ever since the fix . I just wanna add that you MAY have to redo the fix after installing a new firmware.
I'm sorry but where exactly is this stay awake option?
Sent from my Transformer Prime TF201 using XDA Premium HD app
Nevermind, it's in Developer Options (A quick google was enough )
currydude said:
I'm sorry but where exactly is this stay awake option?
Sent from my Transformer Prime TF201 using XDA Premium HD app
Nevermind, it's in Developer Options (A quick google was enough )
Click to expand...
Click to collapse
Ahh yes, sorry bout that! I dont have me TFP here atm but it's in the Settings and then Developer Options. Me thinks atleast :$. It's the one that whines that performance may suffer if you tamper with them .
EDIT: Oh lol. Just saw that you Googled it >.<.
Mr_President said:
Hi boys and girls!
I bought a TFP (with sn: C3O) less than a week ago from NetOnNet in Sweden. I'm loving it! Damn what a piece of hardware :O. But I did notice one thing. The only problem I had with it. When docked and sleeping, the battery would drain insanely fast!!
I found that many ppl pointed at the option; "Stay Awake - Screen never sleeps while charging". But making sure that it's unticked doesn't seem to be enough. After digging some more online. I found that ticking it and then unticking it again made all the difference! :O. And it did for me too!
I went from losing (not actual numbers) 8% battery/hour to losing only 0,5%/hour. Hope this info helps. And if it does, spread the word! .
Click to expand...
Click to collapse
I can confirm that this works, did it last night and no drain overnight.
fazerrider said:
I can confirm that this works, did it last night and no drain overnight.
Click to expand...
Click to collapse
Awesome! . Nothing better than the feeling of helping others. If you install a new firmware you might have to redo the fix. Not sure about that since my came with the latest version available.
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
Hawke84 said:
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
Click to expand...
Click to collapse
Yes, below 70% the dock kicks in and drains to 0% or something like 30%.
I think that depend on how low the tablet was and I think the dock stops charching the tablet when it has reached around 90%?
Shis really sucks, I would like to be able to stop the dock to auto-charge. That way I would be able to keep battery levels identical as when undocked and the tablet should only be charged when it's docked and in use.
Will this option ever be possible in stock or custom rom? Or is this "hardware-coded"?
Hawke84 said:
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
Click to expand...
Click to collapse
For me the problem existed because the setting, Stay Awake, was "stuck". Which means that when the dock is connected to the tablet. The tablet thought that it was being charged, so it stayed awake. Using up lots of battery 24/7. Even when it was just idle/locked. And when the battery in the tablet dropped below 70% then the dock started charging it.
Problem is that since the tablet was using up lots of power, the docks power got drained. Cause it never managed to get the tablets power to 90%. At 90% it would've stopped charging it til the tablets power would've dropped below 70% again. Whew. Hope this answers your question .
I'm thinking that you could have the tablet and dock connected but instead of having them idle/locked you could turn them off completely. Should work. But that's not very practical now is it? =/.
Thanks will try this out!
pvdwaal said:
Yes, below 70% the dock kicks in and drains to 0% or something like 30%.
I think that depend on how low the tablet was and I think the dock stops charching the tablet when it has reached around 90%?
Shis really sucks, I would like to be able to stop the dock to auto-charge. That way I would be able to keep battery levels identical as when undocked and the tablet should only be charged when it's docked and in use.
Will this option ever be possible in stock or custom rom? Or is this "hardware-coded"?
Click to expand...
Click to collapse
I believe there is an option in the dock settings to change what percentage it starts to charge the tablet I'm not positive though because I don't have my prime in front of me but do remember seeing something about it.
Again I could be wrong but I'm pretty sure you can change it.
Sent from my PC36100 using Tapatalk
Frostbiter said:
I believe there is an option in the dock settings to change what percentage it starts to charge the tablet I'm not positive though because I don't have my prime in front of me but do remember seeing something about it.
Again I could be wrong but I'm pretty sure you can change it.
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
I don't think there is, I can't find one
Sent from my HTC Sensation XE with Beats Audio using xda premium
Hawke84 said:
I don't think there is, I can't find one
Sent from my HTC Sensation XE with Beats Audio using xda premium
Click to expand...
Click to collapse
Me neither..that's the main reason I asked
But...stilll..... it could solve all my (and many others) dock-drain-problems
Has anyone else noticed that since we can see battery stats now with the .21 update wifi is eating most of the battery even more than the display.
NuKeM4n said:
Has anyone else noticed that since we can see battery stats now with the .21 update wifi is eating most of the battery even more that the display. Any potential fix for this?
Click to expand...
Click to collapse
Yea, battery is draining quicker compared to last Firmware. You can turn off WIFI during idle stage.. however, yea.. it's annoying.
yeah, i noticed this too. i even have wifi to shut off when sleeping and its still consuming 55% of the battery.
Maybe they boosted up the wifi signal strength a lot to compensate for the infamous poor wifi signal with battery drainage as a consequence.
Aweloi said:
Maybe they boosted up the wifi signal strength a lot to compensate for the infamous poor wifi signal with battery drainage as a consequence.
Click to expand...
Click to collapse
That is what I posted in the other thread. Only thing I can think of that makes sense.
Same here. My wifi has used 79% of my battery since last charge.
slybarman said:
That is what I posted in the other thread. Only thing I can think of that makes sense.
Click to expand...
Click to collapse
Can you point us to that other thread so we're not fragmented all over the boards?
Bruuce said:
Same here. My wifi has used 79% of my battery since last charge.
Can you point us to that other thread so we're not fragmented all over the boards?
Click to expand...
Click to collapse
The other thread was about the update generally:
http://forum.xda-developers.com/showthread.php?p=24228334#post24228334
Are you guys sure the stats are 100% accurate? I dont think that wifi actually sucks more juice than the display. Its the same on my Prime but its possible that the stats just arent that accurate. I have wifi set to disable when in sleep mode so i really dont think it makes sense that it takes up more than the display even in that setting.
Could be wrong though^^ My batterylife so far isnt really different than before the update - at least it doesnt feel different.
my battery life is still the same, which is great. wifi being a battery drainer is nothing new. top 2 battery drainers isbthe display(how high you have it) and wifi. I have my wifi on 24/7. never cut it off and I still get great battery life. I tried that cutting wifi off during sleep setting but I hate it. it always takes the wifi connection a little will to come back connected once display OS activated again. so I just leave it on. another thing to check also is to cut your background sync times down. you don't need email be checked and sync every 5 mins. cut sync off on anything you know you don't use much. saw goes for app notifications also. I got tired of my Facebook going off all the time, so I cut it off. it'll just update when I open the app up. or doing a manual refresh.
WiFi drain seems to be a lot higher since the update.
I got slightly over 5 hours of surfing and messing around undocked last night. WiFi used over 65% of the CPU.
Sure I was getting closer to 8 hours before.
Running in balanced mode
clouds5 said:
Are you guys sure the stats are 100% accurate? I dont think that wifi actually sucks more juice than the display. Its the same on my Prime but its possible that the stats just arent that accurate. I have wifi set to disable when in sleep mode so i really dont think it makes sense that it takes up more than the display even in that setting.
Could be wrong though^^ My batterylife so far isnt really different than before the update - at least it doesnt feel different.
Click to expand...
Click to collapse
I have noticed a huge difference. Last week my prime would only lose 2% battery over night. I updated and haven't changed any settings. Now it drops roughly 40% over night... I'm not happy to say the least. I'll try turning wifi off tonight and compare the 2 settings.
(By the way, I'm rooted and stock everything else)
Glad I am not the only one. I just got my TP a week ago and updated to .21 and sure notice that battery life has been awful. Using it for web browsing, loses 10% in about 40 minutes. And turned off seems to drain the battery as well, more than before the update.
Sent from my Transformer Prime TF201 using xda premium
I do not have drain over night.
I charged it full, and after 9 hours in stand by, battery was 99%
BUT the BlueTooth draines the battery when the Prime is in use.
The settings suggest to turn it off, if you do not need it.
21WW seems fine for me about the battery usage otherwise.
Do not expect the usage they were talking about in the specs.. it's not true!
Aweloi said:
Maybe they boosted up the wifi signal strength a lot to compensate for the infamous poor wifi signal with battery drainage as a consequence.
Click to expand...
Click to collapse
WiFi analyzer shows no difference in signal strenght, and my Prime has been RMAed at ASUS and had changed parts (WIFI/BT issue), it did not help either.
Hey everyone,
I tried searching on here but couldn't find anything similar. I thought I'd post here as its battery related.
For a start, my Prime is completely stock with the .21 firmware. Earlier today I noticed my Prime battery monitor hadn't gone lower than 93% for AGES! When I went into Settings - Battery, it said 93% Unknown. I obviously guessed it was a lot lower than that as I had used it a fair bit most of the day. I was using it about 2 hours ago and it suddenly switched off. I guessed it had run flat so I put it on charge. I've just tried to switch it on and nothing!!! It's been charging for a good 2 hours or so.
Any ideas??? I've had it less than 2 weeks!!! :-(
Thanks in advance.
Sent from my HTC Sensation XE with Beats Audio using XDA
cold boot. hold down the power button and the volume down button until you see the text on the screen, then choose boot without wiping your data.
r0ck0 said:
cold boot. hold down the power button and the volume down button until you see the text on the screen, then choose boot without wiping your data.
Click to expand...
Click to collapse
Since last update I get more than 20% / hour of battery drain doing web browsing at 50% screen brightness ... it was way better from what I remember when I was on .11 and .15 ...
Tried cold booting, will see if that makes a difference ...
r0ck0 said:
cold boot. hold down the power button and the volume down button until you see the text on the screen, then choose boot without wiping your data.
Click to expand...
Click to collapse
Well after charging all night it did switch on as normal again. But today the battery has stopped at 93% again. Going into Settings - Battery, its says 93% Unknown again. :-(
Sent from my Transformer Prime TF201 using XDA
curtis818 said:
Well after charging all night it did switch on as normal again. But today the battery has stopped at 93% again. Going into Settings - Battery, its says 93% Unknown again. :-(
Sent from my Transformer Prime TF201 using XDA
Click to expand...
Click to collapse
Sounds like your batterystats.bin file is corrupt. If you are rooted then navigate to /data/system/ and delete batterystats.bin
Reboot and Android will create a new version of this file and hopefully it will display stats correctly.
Doktaphex said:
Sounds like your batterystats.bin file is corrupt. If you are rooted then navigate to /data/system/ and delete batterystats.bin
Reboot and Android will create a new version of this file and hopefully it will display stats correctly.
Click to expand...
Click to collapse
What if I'm not rooted mate?
Sent from my Transformer Prime TF201 using XDA
I am running .21 in power save mode. I have noticed the following. Using OS Monitor I found that "System" process was using 65%+ CPU resource all the time. So I turned off/stopped as many things that I could no effect..accept..un-mounting my SD card.
Once I un-mounted my SD card the "system" process time dropped to less than 10%.
Since then my battery has only dropped 7 points in 14 hours..based on my "Battery indicator" app.
So why would my SD card eat up battery life by consuming CPU time???
Hey guys,
Has anyone figured out a way to limit the charging from the dock to the tablet? As in not for the tablet to charge at 75% battery life, to drop it to say 25% the only charge to 50% to try and preserve the life of the batteries, as it seems the tablet will lose battery life due to a 'constant' charge
like a laptop you can set power settings up so that your laptop doesnt charge unless needed when plugged into the power source.
I just want to know if it can be done
Sent from my Transformer Prime TF201 using xda premium
84DGR said:
Hey guys,
Has anyone figured out a way to limit the charging from the dock to the tablet? As in not for the tablet to charge at 75% battery life, to drop it to say 25% the only charge to 50% to try and preserve the life of the batteries, as it seems the tablet will lose battery life due to a 'constant' charge
like a laptop you can set power settings up so that your laptop doesnt charge unless needed when plugged into the power source.
I just want to know if it can be done
Sent from my Transformer Prime TF201 using xda premium
Click to expand...
Click to collapse
I honestly never thought of this, but I gotta say that's a really good idea. What's the point of charging through the dock if eventually, the battery in the dock is gonna run out? I would love it if anyone could figure this out.
Likewise, i know it's somewhere in the power settings yet its fnding out how to do it, and hopefully you dont have to root it or be running a custom rom, if it could be an app install that does it even better, there are some apps that look at the power consumption yet this one would be to turn off / edit the charge protocol
Sent from my Transformer Prime TF201 using xda premium
From what i have seen even when keyboard dock says no battery (after completely transferring it to tablet) it runs without any problem. It either has some reserve or gets powered by tablet.
Sent from my GT-I9100 using XDA
Gabewalters said:
I honestly never thought of this, but I gotta say that's a really good idea. What's the point of charging through the dock if eventually, the battery in the dock is gonna run out? I would love it if anyone could figure this out.
Click to expand...
Click to collapse
By charging from the dock when the Prime runs down to around 75%, it keeps the Prime charged up longer as in for around 18 hours instead of the 12 hours the tablet alone is rated to deliver.
Even if the keyboard dock becomes completely depleted, it will still work fine as it draws current from the tablet's battery even while it is "charging" the tablet.
The battery in the dock is only there to charge the tablet, it serves no other purpose.
I interpreted the question as 'this mode of operation is bad for the battery cause it can only cope with XXX charge cycles'
I think it's a limitation in the charging circuit that makes it impossible to run off DC input only (with the battery offline), and the battery technology prohibits a constant float charge of the cells.
It might be possible to tweak the end-of-charge current to closer match the 'on' consumption of the tablet (but in what state), so 95-99% charge takes much longer, but probably only in the kernel. It's not worth the effort for my money...
ksekhar said:
From what i have seen even when keyboard dock says no battery (after completely transferring it to tablet) it runs without any problem. It either has some reserve or gets powered by tablet.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Pretty sure it just draws power from the tablet once the dock battery is dead.
Sent from my ADR6425LVW using XDA Premium.
you're right on the money,
so that i could leave it plugged in for extended amounts of time, I dont want the battery life to die out before i get a good amount of use out of it
I have started to notice it is already not last the 18 -19 hrs as promised and ive had mine for about 3 months
Sent from my Transformer Prime TF201 using xda premium
Just about a week ago, I noticed my Prime's battery wouldn't charge above 74%. Sometimes it reads 63% and won't charge any further. The keyboard can go to 100% but prime stays at 74%. I have drained the battery fully, but it still only goes to 74%. I'll be doing an RMA for my prime in a few days (wifi, camera, mura).
Is this software or hardware? Should I just add that as a problem alongside the wifi, camera and mura? Thanks.
sahilcc7 said:
Just about a week ago, I noticed my Prime's battery wouldn't charge above 74%. Sometimes it reads 63% and won't charge any further. The keyboard can go to 100% but prime stays at 74%. I have drained the battery fully, but it still only goes to 74%. I'll be doing an RMA for my prime in a few days (wifi, camera, mura).
Is this software or hardware? Should I just add that as a problem alongside the wifi, camera and mura? Thanks.
Click to expand...
Click to collapse
I had to RMA my wife's prime for this exact same problem.
ChrisDos said:
I had to RMA my wife's prime for this exact same problem.
Click to expand...
Click to collapse
Thanks..Looks like I'll RMA it now. Did they factory reset the prime during RMA?
sahilcc7 said:
Thanks..Looks like I'll RMA it now. Did they factory reset the prime during RMA?
Click to expand...
Click to collapse
I had something similar happen to me. Might sound kind of stupid, but I flipped the power block 180° in the wall socket. Worth a shot before you rma.
Sent from my Transformer Prime TF201 using Tapatalk HD
Whoops, a bit too late - already in the post I'll be sure to give it a go if ASUS doesn't fix it.
Can someone tell me whether ASUS actually does *fix* or *improve* WiFi signal strength when sent in for RMA. It's just that the tablet is actually unusable without a piece of tinfoil on the bezel. Thanks.
oh I misread, scratch that. thought people were talking about dock charging mechanism used to conserve battery cycles.
ChrisDos said:
I had to RMA my wife's prime for this exact same problem.
Click to expand...
Click to collapse
What did they repair in order for the tablet to charge correctly? Before I had mine sent in for repairs due to an accidental brick; mine had also been showing some inconsistent battery readings. The tablet would show a certain percentage, but stay at that same percentage for about a minute, while it had eaten up about 3-5% from the dock before there were any noticeable changes in the tablet's overall charge.
AW: Transformer won't charge above certain battery %
Have you tried loading the Prime overnight while it is switched off? I do that from time to time, and until now it has always worked to get 100% charge back. Never could get completely rid of the problem though...
Gesendet von meinem Transformer Prime TF201 mit Tapatalk 2