Really poor battery life / phones heating up - Galaxy S II Q&A, Help & Troubleshooting

Hello,
Well I've got really bad battery life. I tried calibration but it hasn't worked. Does anyone know how I can locate the source of the problem?
Sent from my GT-I9100 using Tapatalk 2

You have the screen on permanently.... it is THE largest user of battery in a phone, always. And OLED screens when displaying bright and light images use masses of juice.
And your phone never sleeps.
No idea what the hell you are doing, but it isn't a video player... it's a phone.

The image tells me your Display is always on and it isnt in sleep mode.
Did you play some games and listen to music ?

LenAsh said:
You have the screen on permanently.... it is THE largest user of battery in a phone, always. And OLED screens when displaying bright and light images use masses of juice.
And your phone never sleeps.
No idea what the hell you are doing, but it isn't a video player... it's a phone.
Click to expand...
Click to collapse
Jerkey21 said:
The image tells me your Display is always on and it isnt in sleep mode.
Did you play some games and listen to music ?
Click to expand...
Click to collapse
Hi guys,
Thanks for your replies. Thing is, when using the phone, even when doing simple things, the battery decreases drastically faster than before. I am also using a extended battery.
Are there any other things, apart from brightness and turning off Wifi, GPS, that I can do to improve battery life?

SamungGalaxyS2 said:
Hi guys,
Thanks for your replies. Thing is, when using the phone, even when doing simple things, the battery decreases drastically faster than before. I am also using a extended battery.
Are there any other things, apart from brightness and turning off Wifi, GPS, that I can do to improve battery life?
Click to expand...
Click to collapse
No... if you use the phone with the screen on for 3 hours solid.

And I agree, the screen was on the majority of the time but still, the battery life is decreasing more than before

Use the app Better Battery Stats to see if your phone has any other background processes running aside from what you expect it to. Uninstall/disable the offending apps then try to do your thing again.
Keep in mind as well that ICS uses more battery in general vs Gingerbread though, so that's another factor.

You can try flashing modem for your region, it could fix your heating issue.
I use mobile Odin to flash modem from ROM.
Sent from my GT-I9100 using Tapatalk 2

atifsh said:
You can try flashing modem for your region, it could fix your heating issue.
I use mobile Odin to flash modem from ROM.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Which modem shall I flash?
How do I check which one Im on atm?

atifsh said:
You can try flashing modem for your region, it could fix your heating issue.
I use mobile Odin to flash modem from ROM.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
It's getting hot and draining because of the screen on time, not the ROM.
The screen uses the same power irrespective of the ROM. Only brightness and screen content will affect it.

Download "Watchdog Task Manager Lite" turn on the monitoring and wait and check the stats, if you have an app that is misbehaving, un-install it.
Most battery issues are due to that.
Hope it helps.

Flash modem from your region, means the version of modem that came when you bought the phone.
Example, when I'm on stock ics / cm9 it gets real hot near camera when I use edge.
Flashing my GB modem fixes that issue.
Also it's easier to flash what you have already used instead of finding the correct one.
Sent from my GT-I9100 using Tapatalk 2

your image
I see your image shown that your device has been froze somer times. Maybe you should try changing the kernel. Hope can fix your problem.

Have you 3 not read any of the above? Look at the screenshot. It's screaming the reason at you. Nothing stops the display consuming power and this big one really uses power.
Think before you post

LenAsh said:
Have you 3 not read any of the above? Look at the screenshot. It's screaming the reason at you. Nothing stops the display consuming power and this big one really uses power.
Think before you post
Click to expand...
Click to collapse
You should read the OP, he mentions he got problem even with simple tasks, plus I'm just answering for heat issues.
Sent from my GT-I9100 using Tapatalk 2

Poor battery because its awake
you get poor battery life because as you can see on the graph, the phone has been awake all the time as well as the screen, the screen is a big battery leecher, when i first got my phone and i used it for like 2 hours with no apps, the screen drawed almost 40% battery life, so if you want to increase battery life i suggest you to change your settings so your screen turns off automatically

atifsh said:
Flash modem from your region, means the version of modem that came when you bought the phone.
Example, when I'm on stock ics / cm9 it gets real hot near camera when I use edge.
Flashing my GB modem fixes that issue.
Also it's easier to flash what you have already used instead of finding the correct one.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I'm getting the same issue. I've also noticed that I ain't connecting to 3G much as before (before rooting / installing ROMS etc).
I believe its got to do with the modem. How do I know which one to switch to? My phones a SIM free one from UK.
Sent from my GT-I9100 using Tapatalk 2

Related

[Q] Battery draining too fast

I have a problem with my battery I have my new sgs 2 and I rooted and did a new rom and all but my battery is draining really fast under moderate use! 3 hours of moderate use and I lose about 30% battery! What can be the problem? I calibrated and did speedmod kerenel, still heavy drain... in sleep mode I guess it can last like 2 days but I want to use my phone constantly without loosing so much battery
Sent from my GT-I9100 using XDA App
As far as I can tell based on this information, you have no drain. It's normal that the screen consumes power. If you standby time is 2 days, then you have no battery drain.
Lower your screen brightness and avoid using white colours. And no there is nothing else you can do.
But I see slot of people who get 10 hours of use on moderate and even heavy use,.. maybe it's my rom? I use rarity rom with speedmod kernel, maybe I should use checkrom?
Sent from my GT-I9100 using XDA App
MrFishiz said:
But I see slot of people who get 10 hours of use on moderate and even heavy use,.. maybe it's my rom? I use rarity rom with speedmod kernel, maybe I should use checkrom?
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
No one gets 10 hours with screen on. Thats what you are talking about right? You get 3-4 hours max.
So 30% in 3 hours is normal and not bad.
Right now I got left 58% battery after almost 3 hours of moderate/ heavy use like YouTube mostly fb internet n stuff, is that normal?
I got almost half brightness with 3g always on
Sent from my GT-I9100 using XDA App
Yes .
So is there any particular rom that is known to save battery?
Sent from my GT-I9100 using XDA App
yes, there is a way to save more battery - use common sense.
Srry I meant to write rom but galaxy must have "fixed " it
Sent from my GT-I9100 using XDA App
Whichever ROM makes you not use your phone. Probably best to choose the worst looking one you can find, so you're less likely to use it.
You still don´t understand it. The screen uses power. No matter what rom/kernel you use.
I do get it but isent there any rom that actually saves battery?
Sent from my GT-I9100 using XDA App
No there isnt, at least not afaik.
Get urself Android Assistant, switch to Tools and check out Battery Use. If u click on the "Other" button u'll see exactly what drains the most power. I'm almost certain it'll look like this:
Display
Android System
Android OS
Display can only be reduced by brightness, auto-rotate screen and Auto adjust screen power (See Display settings)
Android System includes many packages. (Look up the details in the Assistant to see which ones u can kill for now)
Android OS is mostly ur CPU clock. U can get urself SetCPU (root required) to lower ur clock frequency (mines set to min 200/max 800; on demand). Everyting runs smooth and I dont see any difference besides 2-4 more hours of battery
Dont set it too low or it wont start up anymore!
The Assistant quick boost widget is also pretty useful. Just click on it and it'll kill all unused apps increasing ur TTL, even if its only a lil bit.
Hope this helps!
Offtopic:
WTF is wrong with the minor moron who added those tags! Guys, if someone is askin for help...either help or stfu!
Any mod who sees this pls remove em.
can u upload a sreenshot of ur battery information..so we can see if its normal.
there are many threads showing how to save battery, like this one.
http://forum.xda-developers.com/showthread.php?t=1351663
install cpu spy from the market and post a screenshot.
install better battery stats for 2€...or try the xda version.
http://forum.xda-developers.com/showthread.php?t=1179809
dunno if its free or just a trial^^
if u can post every information u get from the apps, i could give u an answer
can u upload a sreenshot of ur battery information..so we can see if its normal.
Click to expand...
Click to collapse
FYI u do a screenshot by pressing <home> and <power> button at the same time!

Wifi sleep policy?

Is there battery saving by enabling wifi sleep policy when screen is off? Seems to me it should but I would think ROMs such as Unnamed and SHOstock would have it set that way by default if it was..
Sent from my SAMSUNG-SGH-I777 using XDA App
This actually belongs under the Q & A section...
However to answer your questions... Setting it to never when plugged in is a good idea. it'll make it so your WiFi only suspends and turns off the radio when the screen is off and running off the battery.
Our device's wifi standby power drain is so low and wifi uses so much less power to transfer data in the background than the cell radio that leaving wifi always on saves battery.
This isn't 2009 when wifi chips hogged power just by being turned on - the BCM4330 has been found in many phones since early-mid 2011. (The BCM4329 eats a lot more power.)
Now in the case of UCKK6 firmwares, the wifi chip seems to be running broken firmware that causes it to wake up the CPU all the time - but that's just UCKK6. On a non-broken firmware like UCKH7, XWKL1, or XWLA4, leaving the wifi chip always on will consume insignificant power when not connected to wifi, and save power when connected.
Entropy512 said:
Now in the case of UCKK6 firmwares, the wifi chip seems to be running broken firmware that causes it to wake up the CPU all the time - but that's just UCKK6. On a non-broken firmware like UCKH7, XWKL1, or XWLA4, leaving the wifi chip always on will consume insignificant power when not connected to wifi, and save power when connected.
Click to expand...
Click to collapse
Interesting, have many UCKK6 users suffering battery drain problems noticed a big difference in battery life after flashing
UCKH7, XWKL1, or XWLA4?
I'd most certainly give it a try if others had success going this route..
Sent from my SAMSUNG-SGH-I777 using XDA App
Captpt said:
Interesting, have many UCKK6 users suffering battery drain problems noticed a big difference in battery life after flashing
UCKH7, XWKL1, or XWLA4?
I'd most certainly give it a try if others had success going this route..
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
If you're suffering any battery drain that involves high Android OS battery percentages (70%+) when wifi is on - Any of those three firmwares should entail significant improvement.
Entropy512 said:
If you're suffering any battery drain that involves high Android OS battery percentages (70%+) when wifi is on - Any of those three firmwares should entail significant improvement.
Click to expand...
Click to collapse
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
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jhermit said:
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Darn, Android OS has never gotten near those numbers.. Guess my search goes on for better battery life
Sent from my SAMSUNG-SGH-I777 using XDA App
jhermit said:
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Time to use a i9100 firmware then.
Red5 said:
Time to use a i9100 firmware then.
Click to expand...
Click to collapse
yes, I was going that way but hellraised ROMs don't seem to work with passwords which I need for my work. I actually believe there is something wrong with the phone itself and not the firmware. Getting ready to post a wireshark and dmesg on another thread to see what others think. I'm out of warranty, so I'm stuck with it (careful buying refurbished phones from at&t).
Sent from my FrankenTAB using Tapatalk
Is your usage low? If you barely use your phone, then high android os would be perfectly normal. If not, hellraise a better firmware
Sent from my SGH-I777 using XDA App

Battery drains within a few hours...

Snce I have updated my GS2 to ICS my battery drains insanely fast. I don't even do anything with it. I go to the battery consumption table and it seems like the screen is overusing the battery. The rest are fairly normal percentage.
Like I mentioned in the beginning I only have this problem when i'm using ICS. Right now I have the stock ROM that I downloaded from SamMobile. When I'm using custom ROMs it gets worse. What could this be?
And yes I did try to search for similar problems, because it seems like a lot of people have problem with the battery but no one had the exact same problem as me.
I can just add that since I last charged my phone my screen has been on the lowest brightness and the phone had just been lying on my desk. I haven't even touched it. still 7% has been drained and the screen seems to do the job.
Does anybody know how to fix this?
Same to me....Plzzz guys...Help US.
Battery drain is the hotest topic on ICS these days. I believe the high RAM consumption of ICS is causing battery drain. Almost every ICS rom is having this issue. You are not alone. Relax and wait, you will see improvements.
-
In the mean while, you can install "betterbatterystats" to find out what is draining your battery. Good luck.
Hogir said:
Snce I have updated my GS2 to ICS my battery drains insanely fast. I don't even do anything with it. I go to the battery consumption table and it seems like the screen is overusing the battery. The rest are fairly normal percentage.
Like I mentioned in the beginning I only have this problem when i'm using ICS. Right now I have the stock ROM that I downloaded from SamMobile. When I'm using custom ROMs it gets worse. What could this be?
And yes I did try to search for similar problems, because it seems like a lot of people have problem with the battery but no one had the exact same problem as me.
I can just add that since I last charged my phone my screen has been on the lowest brightness and the phone had just been lying on my desk. I haven't even touched it. still 7% has been drained and the screen seems to do the job.
Does anybody know how to fix this?
Click to expand...
Click to collapse
Percentage means nothing. What is your screen on time? (Click on display to show these details)
ctomgee said:
Percentage means nothing. What is your screen on time? (Click on display to show these details)
Click to expand...
Click to collapse
Well now the screen has been on for one hour it says and my battery is on 77%. This is messed up...
Hogir said:
Well now the screen has been on for one hour it says and my battery is on 77%. This is messed up...
Click to expand...
Click to collapse
So when you clicked on display, it showed that screen on time is 1 hour, and your battery is currently at 77%? That isn't terrible, actually. That means you're on track for a little over 4 hours of screen on time before your battery will reach 0%. Average screen on time for full battery discharge is usually around 4-5 hours.
If you are using the phone, and the screen is on, the battery WILL drain.
ctomgee said:
So when you clicked on display, it showed that screen on time is 1 hour, and your battery is currently at 77%? That isn't terrible, actually. That means you're on track for a little over 4 hours of screen on time before your battery will reach 0%. Average screen on time for full battery discharge is usually around 4-5 hours.
If you are using the phone, and the screen is on, the battery WILL drain.
Click to expand...
Click to collapse
No believe me this is not good battery time at all. I have screen on lowest brightness and barely use it. Even when it's just lying there with screen off it drains a lot. I mean I have had this phone since last summer so I have had it or a while and he battery was pretty good before. But since I updated to ICS the battery drains a lot faster than before.
Hogir said:
No believe me this is not good battery time at all. I have screen on lowest brightness and barely use it. Even when it's just lying there with screen off it drains a lot. I mean I have had this phone since last summer so I have had it or a while and he battery was pretty good before. But since I updated to ICS the battery drains a lot faster than before.
Click to expand...
Click to collapse
You just said the screen said it was on for an hour, and the battery was at 77% in your post above. So was that not accurate?
If it is draining more since you upgraded to ICS, and you want it to get better, then you have three choices:
1 - Install BetterBatteryStats and other monitoring apps to figure out what is keeping wakelocks and other processes running on your phone that is draining battery...
2 - Do a factory reset/full wipe and see if it was an errant app you installed that could be draining the battery, then slowly start adding your apps back one by one... or
3 - Flash back to a Gingerbread firmware.
ctomgee said:
You just said the screen said it was on for an hour, and the battery was at 77% in your post above. So was that not accurate?
If it is draining more since you upgraded to ICS, and you want it to get better, then you have three choices:
1 - Install BetterBatteryStats and other monitoring apps to figure out what is keeping wakelocks and other processes running on your phone that is draining battery...
2 - Do a factory reset/full wipe and see if it was an errant app you installed that could be draining the battery, then slowly start adding your apps back one by one... or
3 - Flash back to a Gingerbread firmware.
Click to expand...
Click to collapse
Yeah I guess you're right, but at the same time the battery is very very bad compared to before so I'm confused. Maybe I was just enjoying a really good battery time back on Gingerbread?
1. First of all that BetterBatteryStats is too complicated for me. I tried to use it before I didn't get it. What am I supposed to do when I find something that is draining my battery. Should I freeze it? Uninstall it?
2. I have tried this a lot of times, no change.
3. If I use Gingerbread for some reason the APN settings with at&t doesn't work properly. I lose connection very often. So I'll rather have worse battery time for now. Is there a solution to the internet connection?
Thanks man I appreciate you taking your time!
Hogir said:
Yeah I guess you're right, but at the same time the battery is very very bad compared to before so I'm confused. Maybe I was just enjoying a really good battery time back on Gingerbread?
1. First of all that BetterBatteryStats is too complicated for me. I tried to use it before I didn't get it. What am I supposed to do when I find something that is draining my battery. Should I freeze it? Uninstall it?
Click to expand...
Click to collapse
Depends... if it's a system app, I would freeze it. If it's an app you installed, then uninstall it.
Hogir said:
2. I have tried this a lot of times, no change.
Click to expand...
Click to collapse
A factory reset? Then maybe a clean re-flash of the newest ICS could be worth a try then.
Hogir said:
3. If I use Gingerbread for some reason the APN settings with at&t doesn't work properly. I lose connection very often. So I'll rather have worse battery time for now. Is there a solution to the internet connection?
Click to expand...
Click to collapse
What modem/baseband are you using with Gingerbread, that could make a difference with mobile data dropping.
Also, what APN settings for AT&T are you using? There are a few different APNs. The two major ones are "wap.cingular", and "phone". The one you should actually use will depend on what kind of data plan you are signed up on.
ctomgee said:
Depends... if it's a system app, I would freeze it. If it's an app you installed, then uninstall it.
Click to expand...
Click to collapse
Sounds good. I'll see what I can do. Ill try it later tonight maybe.
ctomgee said:
A factory reset? Then maybe a clean re-flash of the newest ICS could be worth a try then.
Click to expand...
Click to collapse
I have done resets I have re-flashed the phone several times. But as I said it only happens when I'm using ICS.
ctomgee said:
What modem/baseband are you using with Gingerbread, that could make a difference with mobile data dropping.
Also, what APN settings for AT&T are you using? There are a few different APNs. The two major ones are "wap.cingular", and "phone". The one you should actually use will depend on what kind of data plan you are signed up on.
Click to expand...
Click to collapse
When I'm on GB I use KL1. Is that what you're asking? I had no idea there were two different APNs... I use "wap.cingular"
Do you have the APNs for "phone?" It would be awesome to have that. Then I could just go back to GB until they fix it.
BTW I checked my battery stats again, 24% left. It says screen 56% and Time on: 1h 54min... So it's is pretty bad, right? . It dropped really fast.
Android OS is second with 15%.
Hogir said:
Sounds good. I'll see what I can do. Ill try it later tonight maybe.
I have done resets I have re-flashed the phone several times. But as I said it only happens when I'm using ICS.
When I'm on GB I use KL1. Is that what you're asking? I had no idea there were two different APNs... I use "wap.cingular"
Do you have the APNs for "phone?" It would be awesome to have that. Then I could just go back to GB until they fix it.
Click to expand...
Click to collapse
APN for "phone" doesn't work unless you have a specific data plan - namely any 4G plan. So if I recall from some of your past posts, (I remember you now) you're on the non-smartphone data plan, right? Then the "phone" APN won't work for you if you are.
Hogir said:
BTW I checked my battery stats again, 24% left. It says screen 56% and Time on: 1h 54min... So it's is pretty bad, right? . It dropped really fast.
Android OS is second with 15%.
Click to expand...
Click to collapse
So you're running a clean flash? No downloaded apps installed yet? Yeah, that's terrible. Sorry to hear. I would go back to Gingerbread.
Reading stories like yours makes me glad I'm still ON Gingerbread.
The problem is that I'm not really using the screen that much. today I have just listened to music, not even used the screen that much. Just text a little bit an nothing else.
But still it shows up as if I have used the screen more then the other apps running in the background. Remember my screen is on LOWEST brightness level and I barely use it.
ctomgee said:
APN for "phone" doesn't work unless you have a specific data plan - namely any 4G plan. So if I recall from some of your past posts, (I remember you now) you're on the non-smartphone data plan, right? Then the "phone" APN won't work for you if you are.
Click to expand...
Click to collapse
Yeah I have the nonsmartphone plan, it works perfectly with ICS but not on GB. So it's weird
ctomgee said:
So you're running a clean flash? No downloaded apps installed yet? Yeah, that's terrible. Sorry to hear. I would go back to Gingerbread.
Reading stories like yours makes me glad I'm still ON Gingerbread.
Click to expand...
Click to collapse
You're still on GB, What ROM?
Hogir said:
Yeah I have the nonsmartphone plan, it works perfectly with ICS but not on GB. So it's weird
You're still on GB, What ROM?
Click to expand...
Click to collapse
Stock XXKI3, (2.3.5) I have several mods though.
If all else failed, try shutting down your phone, take the battery out and clean the battery contact points. Dirty contact points might be the culprit.
Cheers.
Sent from my GT-I9100

[Solved] Battery drops after abnormal shut down?

Hi,
My battery drops after every abnormal shut down, by pressing the power button for ~8 second. (I do this when the phone freeze.)
And when I turn my SGS2 on, some battery "disappear", sometimes 10%, sometimes 20%, or ever 50%.
For example, I have 90% of battery right before I shut it down (abnormal shut down) , and maybe I get only 50% of battery after I turn the phone on. It that possible that the battery drains 40% in 1 minute? Or it is normal because I shut it down improperly? (have a look of the attachment)
There is no problem if I reboot it normally.
I have two battery, having the same problem.
I face this issue in many ROMs, stock GB ROM, AOKP ROM, MIUI, etc.
I'm using Siyah Kernel 3.1.2 now.
Thanks for any help
(Sorry for my bad English)
I've heard a few users mention this battery drop and i've experienced it myself. It even happens sometimes if i restart my phone after flashing a mod or something.
You'll notice that the battery level starts to climb back up to where it left of (less the normal usage discharge)
Yep, normal on the SGS2.
Just part of the battery weirdness as a result of that fuel gauge chip. Entropy512 has written many a post on the subject if you feel like searching/reading up on it. Nothing to be alarmed about tho, and nothing you can fix. Just make sure you've got plenty of battery left before you do a flash.
On other hand, your freezes if regular is a worry!
Sent from my GT-I9100 using Tapatalk 2
Wezi said:
I've heard a few users mention this battery drop and i've experienced it myself. It even happens sometimes if i restart my phone after flashing a mod or something.
You'll notice that the battery level starts to climb back up to where it left of (less the normal usage discharge)
Click to expand...
Click to collapse
MistahBungle said:
Yep, normal on the SGS2.
Just part of the battery weirdness as a result of that fuel gauge chip. Entropy512 has written many a post on the subject if you feel like searching/reading up on it. Nothing to be alarmed about tho, and nothing you can fix. Just make sure you've got plenty of battery left before you do a flash.
Click to expand...
Click to collapse
Thank you so much!
atifsh said:
On other hand, your freezes if regular is a worry!
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Yup, my SGS2 freezes quite frequently after upgrading to Android 4.0.4.
Maybe I'll downgrade to 4.0.3, or perform a full wipe and flash the ROM again to fix this.
alvinsiu said:
Thank you so much!
Yup, my SGS2 freezes quite frequently after upgrading to Android 4.0.4.
Maybe I'll downgrade to 4.0.3, or perform a full wipe and flash the ROM again to fix this.
Click to expand...
Click to collapse
Strange Iv never had a freeze on cm9, or stock, other than usual game freeze on cm9 like temple run
Sent from my GT-I9100 using Tapatalk 2
i neva faced tht batt drops but one common point is u mus b full on batt wen flashing,the kernel does it suit ur need,apps installd,ur modem ,signal,an look at my sig --right now iam on 520 apps (reason iam pointing this is bcause i figured number of apps tht jus don stop,an i had to remove them..)
Battery drop is pretty common say 7 out of 10 times if you remove battery, after boot you will be 10-20 percent less. Specially if you change roms quickly..
Sent from my GT-I9100 using Tapatalk 2
Apart from the first few words of what you said (which I've omitted), what does the rest of it have to do with the OP's query about battery dropping after a dodgy shutdown or when flashing firmwares ?
rocky23 said:
"...the kernel does it suit ur need,apps installd,ur modem ,signal,an look at my sig --right now iam on 520 apps (reason iam pointing this is bcause i figured number of apps tht jus don stop,an i had to remove them..)"
Click to expand...
Click to collapse
MistahBungle said:
Apart from the first few words of what you said (which I've omitted), what does the rest of it have to do with the OP's query about battery dropping after a dodgy shutdown or when flashing firmwares ?
Click to expand...
Click to collapse
You understood that?
I'm starting to wonder if his keyboard is just missing letters.
Hahaha ;-) I tried to. I managed to work out the bit I quoted had nothing to do with what the OP asked. Apparently all the cool kids speak like that nowadays.
ctomgee said:
You understood that?
I'm starting to wonder if his keyboard is just missing letters.
Click to expand...
Click to collapse

Holy hell Batman at the Battery Drain!

Is anyone else getting Android OS around 50-60% battery use?
I have tried every ROM included going back to stock. I have ran the phone with nothing but Stock and no apps installed for a day and still get the same drain so I can only assume its a kernel issue.
I am not familiar with LG products in the slightest, but I had a yellow screen of death the other day...something I have never seen in my years with samsung android products. Anyone have any idea what this is maybe it is pointing to a hardware issue?
LG made a great phone, but I don't think I will keep it much longer. Locked boot loaders, no sources, and history of terrible updates have me regretting purchasing this phone. I tried my hand at building a working jb release when I first got the phone and it is going to take a skill set I do not have and I hate waiting on a company to do what they've never done in the past..
jivy26 said:
Is anyone else getting Android OS around 50-60% battery use?
I have tried every ROM included going back to stock. I have ran the phone with nothing but Stock and no apps installed for a day and still get the same drain so I can only assume its a kernel issue.
I am not familiar with LG products in the slightest, but I had a yellow screen of death the other day...something I have never seen in my years with samsung android products. Anyone have any idea what this is maybe it is pointing to a hardware issue?
LG made a great phone, but I don't think I will keep it much longer. Locked boot loaders, no sources, and history of terrible updates have me regretting purchasing this phone. I tried my hand at building a working jb release when I first got the phone and it is going to take a skill set I do not have and I hate waiting on a company to do what they've never done in the past..
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Easy, brother. I have only had one of my apps/utilities run higher than AndroidOS ever on this phone; however, that said, I think there is a problem with the way it's being calculated. I'm getting really good battery life with good sleep and still AndroidOS shows the highest by far. I know that's abnormal for it to be so high and still get good battery life, but it is what it is.
Edit: you've installed the fast dormancy toggle, right? As for the yellow screen, I've seen it once in my two months with the phone, just rebooted and carried on. Forgot what they said it was...but it is here in this forum somewhere.
Sent from my LG-E970 using xda app-developers app
I was just about to post something similar. Andriod OS being high kind of makes sense if nothing else is using the battery, although you would expect that number to fall significantly with increased screen on time and heavy app usage, which it doesn't ever seem to.
I've been having horrible battery drain lately. I'm currently traveling for business, and just use my OG for web surfing and stuff when I'm in my hotel. I leave the phone in airplane mode, with WiFi on. About two weeks ago, when I was on The Base 0.4 in that same configuration, my battery would drain maybe 1% an hour while I was sleeping.
Recently I've been on The Base 0.7.3, and my battery drains over 5% an hour while I'm sleeping. This means no screen on, no apps running, and even turning WiFi off! How does it use that much battery when it's not doing anything? Now, I'm not entirely sure what kernel I'm running. The first time I installed The Base 0.7.3 I used sk8's kernel. After getting poor battery life, I reflashed 0.7 and 0.7.3, this time choosing the freegee kernel. I'm not actually sure if the kernel changed though.
Anyway, I think I'll post again tomorrow with some screenshots from Better Battery Stats+ and CPU Spy.
I'm wondering if this recent botched update had the battery fixes we need. Hopefully they'll re-release it soon.
Jank4AU said:
Easy, brother. I have only had one of my apps/utilities run higher than AndroidOS ever on this phone; however, that said, I think there is a problem with the way it's being calculated. I'm getting really good battery life with good sleep and still AndroidOS shows the highest by far. I know that's abnormal for it to be so high and still get good battery life, but it is what it is.
Edit: you've installed the fast dormancy toggle, right? As for the yellow screen, I've seen it once in my two months with the phone, just rebooted and carried on. Forgot what they said it was...but it is here in this forum somewhere.
Sent from my LG-E970 using xda app-developers app
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Yea I've tried fdt but I think it has to be kernel related drain issues
Sent from my LG-E970 using Tapatalk 2
Digil said:
I was just about to post something similar. Andriod OS being high kind of makes sense if nothing else is using the battery, although you would expect that number to fall significantly with increased screen on time and heavy app usage, which it doesn't ever seem to.
I've been having horrible battery drain lately. I'm currently traveling for business, and just use my OG for web surfing and stuff when I'm in my hotel. I leave the phone in airplane mode, with WiFi on. About two weeks ago, when I was on The Base 0.4 in that same configuration, my battery would drain maybe 1% an hour while I was sleeping.
Recently I've been on The Base 0.7.3, and my battery drains over 5% an hour while I'm sleeping. This means no screen on, no apps running, and even turning WiFi off! How does it use that much battery when it's not doing anything? Now, I'm not entirely sure what kernel I'm running. The first time I installed The Base 0.7.3 I used sk8's kernel. After getting poor battery life, I reflashed 0.7 and 0.7.3, this time choosing the freegee kernel. I'm not actually sure if the kernel changed though.
Anyway, I think I'll post again tomorrow with some screenshots from BatteryStats+ and CPU Spy.
I'm wondering if this recent botched update had the battery fixes we need. Hopefully they'll re-release it soon.
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When I would get bad drain, which has happened several times, I could narrow it down to a couple things in order to solve the problem.
In my case it would always happen after installing Google+. Uninstall and reboot would usually fix the issue. If I got drain on a fresh install without g+ installed, I found that if I installed the 2.2 kernel separately as a stand alone zip, that would fix it. Don't know why but it may work for you too.
I don't have screen shots, but today I recharged at 38% after 3:10 of phone use and 1:55 screen on time and about 15 hours off charger. That's with Wi-Fi on the whole time and Bluetooth for about 9 hours. I have my work exchange account on active sync with push notifications. Facebook and Twitterer to 4 hour intervals. I'm underclocked to 1350 and using powersave gov with deadline.
Sent from my LG-E970 using xda app-developers app
jivy26 said:
Yea I've tried fdt but I think it has to be kernel related drain issues
Sent from my LG-E970 using Tapatalk 2
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Believe you are correct. There were issues on the Samsung Infuse and even the international SGS3 for a while... it was referred to as 'memory leak.' Has been worked out by devs on XDA. You can put memory leak in the XDA search above... it's above my pay grade.
Edit: It's great to see another RD here... hope you will reconsider keeping the phone and stay !!
Jank4AU said:
When I would get bad drain, which has happened several times, I could narrow it down to a couple things in order to solve the problem.
In my case it would always happen after installing Google+. Uninstall and reboot would usually fix the issue. If I got drain on a fresh install without g+ installed, I found that if I installed the 2.2 kernel separately as a stand alone zip, that would fix it. Don't know why but it may work for you too.
I don't have screen shots, but today I recharged at 38% after 3:10 of phone use and 1:55 screen on time and about 15 hours off charger. That's with Wi-Fi on the whole time and Bluetooth for about 9 hours. I have my work exchange account on active sync with push notifications. Facebook and Twitterer to 4 hour intervals. I'm underclocked to 1350 and using powersave gov with deadline.
Sent from my LG-E970 using xda app-developers app
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Thanks for pointing me in the right direction. I have Google+ uninstalled, but part of me thinks Google Now may be partially the culprit (although why that would be the case with all radios off, I don't know).
I'll try a fresh install of the 2.2 kernel and see if that helps. Thanks.
I can't speak for anyone else but FDT did wonders for my battery life. I was only able to go about 12 hours prior to disabling FD.
Sent from my Optimus G
Digil said:
Thanks for pointing me in the right direction. I have Google+ uninstalled, but part of me thinks Google Now may be partially the culprit (although why that would be the case with all radios off, I don't know).
I'll try a fresh install of the 2.2 kernel and see if that helps. Thanks.
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I always install GNow, love the inverted version.
Sent from my LG-E970 using xda app-developers app
johnbyebye said:
I can't speak for anyone else but FDT did wonders for my battery life. I was only able to go about 12 hours prior to disabling FD.
Sent from my Optimus G
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This is good for sure... it's just that compared to other phones, Android OS and Android System should not be that high.
Pony Express said:
This is good for sure... it's just that compared to other phones, Android OS and Android System should not be that high.
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That's what leads me to believe it's a faulty measure...
Sent from my LG-E970 using xda app-developers app
Jank4AU said:
That's what leads me to believe it's a faulty measure...
Sent from my LG-E970 using xda app-developers app
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^^^ This is indeed worth considering.... I think the question then becomes why is it consistent among the 3 roms we are using? Maybe when JB source is out and something is built from source all will be good.
Pony Express said:
^^^ This is indeed worth considering.... I think the question then becomes why is it consistent among the 3 roms we are using? Maybe when JB source is out and something is built from source all will be good.
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I would be less inclined to believe it is a faulty measure if we had a different ROM not built off stock (AOKP/CM10) that could produce different values. However, I seriously doubt anything built into either of the two custom ROM's is geared toward normalizing that reading. That's why they are both the same as the stock AndroidOS percentages. Jivy is probably right that it's a kernel issue. With the size battery we have, imagine the potential if it is a true reading (androidOS out-of-control) and we can get it under control down the road. We're talking double the current best battery life you've ever had on this phone at the very least.
Sent from my LG-E970 using xda app-developers app
+1
LOL
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Get BetterBatteryStats, select Since unplugged and Alarms to see what is waking the device (making it not go into a deep sleep). eBay was a big culprit for me.
The wakelock that keeps the phone awake during background data transfer (screen off) lasts 6 seconds (I am guessing it does it in multiples of 6s) regardless of how long the sync takes. Everytime email, facebook, gmail, drive, picasa, twitter, g+, google maps, ebay, calendar, contacts.. whatever wakes the phone to check something, it will be a minimum of 6 seconds.. This adds up over the course of the day and it is counted in the Android OS. Shut down syncs you don't absolutely want/need and this number will go down. All phones with the Snapdragon S4 Pro has it, especially the Nexus4. It seems they've done some kernel work to fix/reduce it but I havent really looked into it since I don't have that phone. I've seen complaints in the Droid DNA forum as well.
snacsnoc said:
Get BetterBatteryStats, select Since unplugged and Alarms to see what is waking the device (making it not go into a deep sleep). eBay was a big culprit for me.
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This. EBay for me too. BetterBatteryStats is your friend.
Anyone else experiencing scrolling lag or delay. Clearing cache and wiping dalvik fixes it but the issue returns after about two days.
Sent from my LG-E970 using Tapatalk 2
jivy26 said:
Anyone else experiencing scrolling lag or delay. Clearing cache and wiping dalvik fixes it but the issue returns after about two days.
Sent from my LG-E970 using Tapatalk 2
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Check out this thread: http://forum.xda-developers.com/showthread.php?t=1987032

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