Develop Bugs

[Q] Battery life/kernel question

I am currently using CM7 RC4 and have been reading through the CM forum for tips on how to improve my battery life. I must admit that I have tried various kernels (CFS and BFS as well as SBC and non) but nothing seems to really make a difference.
I average about 6 to 8 hours of battery life with light to moderate use. The most time I spend really using the phone is for the 2+ hours when I go to the gym and use Pandora. Besides that, I send some texts, browse the web and use Facebook. I know that there are a lot of variables when it comes to interpretation over how much use of a phone is "a lot" but still.........I hate how quickly my battery drains.
In one instance, I went to bed at 1 a.m. with 99% charge (having been off the charger only 30 minutes) and when I woke up at 8:30, I was already down to 57% with high Cell Standby as well as Android System.
I have now gone through and done the change on my phone to set the radio to "CDMA Only" as well as disabling Auto Sync.
I am currently using SavageZen Kernel CFS 0.2.1 and will report back on how it does overnight but.....definitely not holding my breath.
Any helpful tips are appreciated.

BatmanCia said:
I am currently using CM7 RC4 and have been reading through the CM forum for tips on how to improve my battery life. I must admit that I have tried various kernels (CFS and BFS as well as SBC and non) but nothing seems to really make a difference.
I average about 6 to 8 hours of battery life with light to moderate use. The most time I spend really using the phone is for the 2+ hours when I go to the gym and use Pandora. Besides that, I send some texts, browse the web and use Facebook. I know that there are a lot of variables when it comes to interpretation over how much use of a phone is "a lot" but still.........I hate how quickly my battery drains.
In one instance, I went to bed at 1 a.m. with 99% charge (having been off the charger only 30 minutes) and when I woke up at 8:30, I was already down to 57% with high Cell Standby as well as Android System.
I have now gone through and done the change on my phone to set the radio to "CDMA Only" as well as disabling Auto Sync.
I am currently using SavageZen Kernel CFS 0.2.1 and will report back on how it does overnight but.....definitely not holding my breath.
Any helpful tips are appreciated.
Click to expand...
Click to collapse
First, make sure you've done this: http://forum.xda-developers.com/showthread.php?t=712990
Also, turn off your back up data to Google servers in settings > privacy.
I've had it off for a good 5 hours or so and my battery life has already drastically improved.

To be honest dude, without an extended battery man that's about the best you're going to get. I consider myself a moderate-heavy user and I work from 8am-5pm. My battery is unplugged at 7am and when I get off at 5pm its on about 20% on my way home. I've tried just about EVERY rom(aosp/sense) along with EVERY kernel combination out there. I browse web, constant text, twitter, Facebook, email, maybe a game and I've never witnessed anything greater than what I posted above. No matter what people say to you about how great their battery life is or how its been running for 18hrs its all BS(w/ reg battery). Yeah if your phone is sleeping 90% of the time then yeah its believable, but for users like us 6-8 is about the best with a normal battery. Now a buddy of mine has the sprint extended battery; dude uses the hell out of his phone and can honestly say his phone last about 17 hours of power usage.
My tip would be to invest in an extended battery if you want more than 6-8 hrs.
Sent from my PC36100 using XDA Premium App

Lol this is far from the truth. I avg 18-20 hrs with moderate use.
dirkyd3rk said:
To be honest dude, without an extended battery man that's about the best you're going to get. I consider myself a moderate-heavy user and I work from 8am-5pm. My battery is unplugged at 7am and when I get off at 5pm its on about 20% on my way home. I've tried just about EVERY rom(aosp/sense) along with EVERY kernel combination out there. I browse web, constant text, twitter, Facebook, email, maybe a game and I've never witnessed anything greater than what I posted above. No matter what people say to you about how great their battery life is or how its been running for 18hrs its all BS(w/ reg battery). Yeah if your phone is sleeping 90% of the time then yeah its believable, but for users like us 6-8 is about the best with a normal battery. Now a buddy of mine has the sprint extended battery; dude uses the hell out of his phone and can honestly say his phone last about 17 hours of power usage.
My tip would be to invest in an extended battery if you want more than 6-8 hrs.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Sent from my HTC Evo running CM7

@swaze
Define moderate use! My screen on my evo gets turned on like every 5 or 10 mins while wifi usage sits at 40% and the screen is constantly at 50%. My phone lasts me through work with pretty moderate/heavy usage(7-9 hrs) and I'm happy with my battery simply because it's not going to get better(regular batt). Now if your display never gets passed 20% then you're not using your phone buddy.But, if you're using a REGULAR battery and you're actually getting 18 hours feel free to post pics or no one cares to hear about this make believe 18 hours. Please do share how you actually use your phone; how are you achieving such great results cause as of right now you're just one of those randoms who come in and say **** like" durrrr I get 18hrs on my phone, but I post no pics to back it up". PICS OR IT DIDN'T HAPPEN
Sent from my PC36100 using XDA Premium App

The best option I could suggest would be search E-bay for a 3500 MaH extended battery. They run about $.01 with about $9.99 shipping from China. If you need help I can send you a link to one of the auctions. Also make sure things like auto-brightness isn't enabled and that things are syncing a ridiculous amount of times per day. Good Luck.

Ive been running CM7 for a couple weeks battery life started going down hill fast.
My fix was to get new HTC battery for $7 on Ebay problem solved.

Just try turning the Google backup off.

I get from 10hrs to 15 but I turn off the day when I'm not using it and have my CPU set to run a at different speeds
Sent from my PC36100 using XDA App

Bro I bought a 3500+ battery from eBay and it lasts me about the whole day, this is with the exception with 3G on and heavy texting, moderate browsing and heavy and I mean "heavy" application use during the end of the day. On other days when I'm not texting I'm watching videos on youtube with the 4G on, this last for about 30 - 60 minutes top!. So whats my point? Say thing like you said, "My tip would be to invest in an extended battery if you want more than 6-8 hrs."
pictures Below :

Im not sure what kernels are being used that are tossing out such ruff battery life but SavagedZen-1.0.0-CFS-HAVS-WiMAX-GB-noSBC is treating me right.
Simple performance setting in CM changing governor can get the job done adding many hours of extra battery life.
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Smartass setting is great performer to say the least power packed battery saver.

Not sure if apps available but it would be nice if governor had timer settings were user could set what governor they want to run at what time automatically.
Example would be after 11pm power-save governor kicks in then returns to Smartass from 7am - 12pm etc.
If such apps available...maybe I'm missing setting in CM someone please let me know

sling said:
Not sure if apps available but it would be nice if governor had timer settings were user could set what governor they want to run at what time automatically.
Example would be after 11pm power-save governor kicks in then returns to Smartass from 7am - 12pm etc.
If apps available...maybe I'm missing such setting in CM someone please let me know
Click to expand...
Click to collapse
Closest you're going to get to that is setcpu man. It does just about everything you just mentioned. There's a donate version in the market and a free version that the dev puts up for xda users try google search you'd find it in a heartbeat.
Actually I'm feeling nice. The latest version is 2.1.1.
http://forum.xda-developers.com/showthread.php?t=505419
Sent from my PC36100 using XDA Premium App

dirkyd3rk said:
Closest you're going to get to that is setcpu man. It doesn't just about everything you just said. There's a paid version in the market an a free version that the dev puts up for xda users try Google search you'd find it in a heartbeat.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Right on used app in the past but didn't get to deep into it.
Maybe CM will add feature stock simplifying it.

sling said:
Right on used app in the past but didn't get to deep into it.
Maybe CM will add feature stock simplifying it.
Click to expand...
Click to collapse
Actually I'd say its pretty simple enough in cm7 and I think it should probably stay that way to be user friendly to the not so savvy rooter lol. But above you stated you wanted more control of your kernel pretty much; setcpu gives you total control. You can set a diff governor profile for diff actions(plug, unplug, screen off), battery percentages, etc. I'd say give it a shot.
Sent from my PC36100 using XDA Premium App

More Battery Testing on the SGS2, Stock batt VS Ankler

Hello forum and its inhabitats ! I have a new issue today (a new thread about it at least, the issue was here always); battery capacity and the SGS2 battery life ! My GS2 was sent with a 1650 chinise battery -- im not very happy with it. Using the phone quite passively leaves it with only 6 hours of battery life - i checked and it was roughly 20% per hour -.-
So i was browsing ebay and stubled on battery replacers for the GS2, one of them being a 2430 mAh capacity battery (http://item.mobileweb.ebay.de/viewitem?itemId=130594902895&index=14&nav=SEARCH&nid=15065655277).
So i wanted to ask, is it a fake ? Which battery should i buy to prolong my phone's life ? Thankyou for anwsers by time ^^
Sent from my GT-I9100 using XDA App

Oh and what i want is an extended battery without having to get a bigget case or anything. And, should i buy a 1650 again, just the japanese version ? Come on people i know you can anwser this
Sent from my GT-I9100 using XDA App

The Anker 1900mah battery (amazon.co.uk links: single battery, two batteries + charger) is probably the best extended battery which is the same size as stock (no bigger battery cover needed)

20% battery per hour is not normal with whatever "passive use" means. I would first investigate what's using up your juice before getting a new battery. Go into Settings -> About phone -> Battery use to see what's going on. Your phone might not be getting into deep sleep in which case BetterBatteryStats from the market might help you.

Vlad the Cat said:
So i wanted to ask, is it a fake ? Which battery should i buy to prolong my phone's life ?
Click to expand...
Click to collapse
Yes its fake, only buy original samsung batteries, samsung has a larger 2000mah battery if you want more capacity.

milestoner said:
20% battery per hour is not normal with whatever "passive use" means. I would first investigate what's using up your juice before getting a new battery. Go into Settings -> About phone -> Battery use to see what's going on. Your phone might not be getting into deep sleep in which case BetterBatteryStats from the market might help you.
Click to expand...
Click to collapse
Yeah, the screen usually eats 65% of the total battery. Where and what should i search in this betterbatterystats ? (downloaded it already).
And yeah, not quite passive use i'd say ^^
Sent from my GT-I9100 using XDA App

Well, if the device loses 20% per hour, its probably not going to sleep.
When looking at the battery stats (settings > about > battery), try to see if the device is awake a whole lot more than the screen is on.
If it does, with betterbatterystats you'll be able to see by going to "Partial wakelocks", whats the cause of it. if an app has a long wakelock time it is probably the issue for the battery troubles.
try to see if you have facebook sync, maybe its causing it as well.

eranyanay said:
Well, if the device loses 20% per hour, its probably not going to sleep.
When looking at the battery stats (settings > about > battery), try to see if the device is awake a whole lot more than the screen is on.
If it does, with betterbatterystats you'll be able to see by going to "Partial wakelocks", whats the cause of it. if an app has a long wakelock time it is probably the issue for the battery troubles.
try to see if you have facebook sync, maybe its causing it as well.
Click to expand...
Click to collapse
Im gonna run System Monitor today, to watch what apps used what and how much. Plus BetterBatteryStats at the end of the day. Lets see whats wrong with this phone <.<
Im also using Revolution ROM (2.7.1 i think..) with the CF-Root kernel. What i turned on by myself is: screen brightness minimum, sync of Gmail and Twitter (quite often, twitter every 5 minutes and Gmail i dont know how much. Constantly i think). Gtalk is always on, Mobile data is always on too, i do some browsing at times and some games too (at a higher screen brightness usually). AVG antivirus is always on, Latency is updating my position, Evernote large widget (the only widget im using, everything else is shortcuts). And thats it.
I know it may seem much but i still think it shouldnt be eating THAT much. Especially when its screen is off for 4-5-6 hours per day because of school.
Im also gonna post the apps that shouldnt be running in the background this evening (im from germany)
Sent from my GT-I9100 using XDA App

Ok so for now it taked 10% per hour with me not using it much. Lets see what stats i get at the end of the day. What exactly should i screenshot ? I got system monitor, BetterBatteryStats and the stock battery stats.
Sent from my GT-I9100 using XDA App

Eh.. I think i'll do the run tomorrow and post tomorrow's stats. Today my phone crashed once, and i turned it off once aswell, so i have a 30% gap in all monitors (from 70% to 40%) soo yeah.. Post your suggestions, people.
I'll test out this battery, and then fix some issues and test again, then do the same to the 1900 one higher in this thread to see the differences
[ GT-I9100 ] XDA APP SO TASTY WITH MY SLOW INTERNET OMNOMNOM

Today's results:
-unplugged this morning at 7:33 - 100%
-plugged in right now at 16:23 -5%
So roughly my battery lives ~9 hours per day. Why im still not happy ? Because im not using it the half of the day due to school, and when i do use it, the discharging is a bit overwhelming in my opinion.
Turns out it drains 11%/h or so.
I'll post the numerous screens from different applications, hoping that peoplr will help me improve the battery (since i know a lot of other people have their phone living for 20 hours !)
Also, you will notice the skip in the stock battery monitor and in the system panel app, its just how i said in my other thread - data loss. I was reinstalling chainfire so that the tegra game would work, and ofcourse the phone rebooted forcefully after installing/upgrading the CF3D plugin.
Stock monitor (approx. 1 hour of data was lost):
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SystemPanel app (1 hour of data lost like in the stock monitor):
Plus the running apps info from this app (im not sure which ones should run and which not, but i'll try to list any suspicious services), a whole list:
Odd: Those two Bluetooth services
None of the next ones should be running in the background in my opinion:
None of those eighter:
These too shouldnt be here ?
Samsung keypad i understand, but i didnt knew it always runs in the background. Others i dunno.
WTF Skype, i haven't opened you in weeks !
Those that are EX here i know they should be working.
XDA runs in the backgroud ? With otifications i guess yes, but i had none untill now and will turn it off. Also, system apps begin, and i wont comment on them
Except for this one maybe. I have my Latency location updating, so that explains the friends location
And finally the last screenshots from Battery snap app !:
[ GT-I9100 ] XDA APP SO TASTY WITH MY SLOW INTERNET OMNOMNOM
If i helped you im sure its easy to press that lil' pretty "Thanks" button

Sorry guys for the overload of screenshots. I dont have a pc now and wont have one soon eighter, so its hard to type and go back and forth to check every apps name, usage, cpu time ^^" plus this is another reason why i need my phone working at its max, life longerso i could use it normally, but not hold it on the charger constantly.
UPDATE: today my screen (when it was used) was at 20% brightness, and i deleted the twitter account, so no sync every 5 minutes (i still dunno about GMail, maybe its constant ?)
Also ! I dont think my screen really used just 48%, its usually more - around 60% ! And today i actually saw that it was 73% at some point but then it would fall down to 60 again due to idling (probably the data was lost. Again.)
[ GT-I9100 ] XDA APP SO TASTY WITH MY SLOW INTERNET OMNOMNOM
If i helped you im sure its easy to press that lil' pretty "Thanks" button

if you are looking for a new battery, the anker 1900mah is the best you can get without increasing the size of the phone! It is also the only third party battery that is proven to be the mah they claim it has, some even get 2000mah with this battery.
If i was you, i would first disable all your widgets, and then check again! If its a big difference, add them one by one slowely! Some widgets can cause battery drain. If that doesnt help you can try to reset your whole phone back to how you got it in the beginning and then slowely add your apps back.
you could also try and read this : http://forum.xda-developers.com/showthread.php?t=1135033

Just ordered one and a desktop charger
Sent from my GT-I9100 using Tapatalk

Seriousley, Running an AV!? LOL

Idle battery drain

I've been noticing my battery drain about 3% on idle after taking it off charge. It's really annoying as 3% to me is too much. I've attached the battery screens to this post below.
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Device Idle is responsible for 1.32% drainage from your battery. No problem here. If I'm misunderstanding, please rephrase.

Aerowinder said:
Device Idle is responsible for 1.32% drainage from your battery. No problem here. If I'm misunderstanding, please rephrase.
Click to expand...
Click to collapse
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:

aamir123 said:
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:
View attachment 1608439
View attachment 1608440
Click to expand...
Click to collapse
I'm not sure if that's normal but I loose that amount in 2hours and 45 minutes idle
Sent from my Rooted Gameboy

aamir123 said:
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:
View attachment 1608439
View attachment 1608440
Click to expand...
Click to collapse
looks to me that ur messaging app is going crazy...everything else looks normal.

what can I do to fix this? Its annoying. And no this shouldn't be normal, I like everything about the stock rom and wouldn't like to root just for the hell of it. But this actually has me thinking, (still leaning towards no as I still get thru the day) but would like to get if fixed non the less.

I noticed the same thing. When i unplug it in the morning it drains faster. But when im waiting for the fully charged notification to pop up then unplug it lasts longer. Its strange, maybe has something to do with charger. Do they have "safe mode" after fully charged to prevent overcharging or something?
Sent from my Galaxy S3 using neighbors wifi

1slow4G said:
I noticed the same thing. When i unplug it in the morning it drains faster. But when im waiting for the fully charged notification to pop up then unplug it lasts longer. Its strange, maybe has something to do with charger. Do they have "safe mode" after fully charged to prevent overcharging or something?
Sent from my Galaxy S3 using neighbors wifi
Click to expand...
Click to collapse
I always wait for the battery fully charged unplug charger notification to pop up before unplugging. So that doesn't seem to be the problem.

Faster drain is normal from 100% to 90%. It was explained to me that when you leave the phone on the charger overnight it charges to 100% and then allows it to drain some, then starts recharging again. You may really be at 95% when you pull it off the charger despite what the phone is showing.

First, get Better Battery Stats. It can help you figure out whether something is eating your battery abnormally.
Play store link
Also, I highly recommend GSam Battery Monitor It might be a little easier to understand than BBS, but I like and use both.
Finally, read this: Your battery gauge is lying to you!

futuremonkey said:
First, get Better Battery Stats. It can help you figure out whether something is eating your battery abnormally.
Play store link
Also, I highly recommend GSam Battery Monitor It might be a little easier to understand than BBS, but I like and use both.
Finally, read this: Your battery gauge is lying to you!
Click to expand...
Click to collapse
Im not rooted so I'm guessing that BBS wont work for me too much. Neither is GSAM Battery Monitor.

aamir123 said:
I always wait for the battery fully charged unplug charger notification to pop up before unplugging. So that doesn't seem to be the problem.
Click to expand...
Click to collapse
Oh ok. Nevrrmind then
Sent from my Galaxy S3 using neighbors wifi

Go to settings/wifi press menu and select advanced
set NEVER keep wifi on during sleep.... it cut drain to much lower level for me.

ndkone said:
Go to settings/wifi press menu and select advanced
set NEVER keep wifi on during sleep.... it cut drain to much lower level for me.
Click to expand...
Click to collapse
already on that setting also today I left the phone in my car for a few hours (after sunset) and when I came back the phone drained from ~50% to 0% and was very hot.

aamir123 said:
Im not rooted so I'm guessing that BBS wont work for me too much. Neither is GSAM Battery Monitor.
Click to expand...
Click to collapse
both apps are working without rooting.
BBS should be the best app to find out which process is your problem.

This phone gets hot randomly, guess it was just humid in your car. I feel like all this battery talk is useless android has never been good with battery life. This phone is huge and powerful so battery drain is going to happen. Also depends how long you had battery, how much you over charge battery. I read in several places that after 3 to 5 months of use batteries tend to drain faster.
Your best bet if it's such a big issue is getting another battery with a separate charger. Honestly in this day and age these smartphones should come with an extra battery lol
Sent from my SGH-T999 using xda app-developers app

daxecutioner24 said:
This phone gets hot randomly, guess it was just humid in your car. I feel like all this battery talk is useless android has never been good with battery life. This phone is huge and powerful so battery drain is going to happen. Also depends how long you had battery, how much you over charge battery. I read in several places that after 3 to 5 months of use batteries tend to drain faster.
Your best bet if it's such a big issue is getting another battery with a separate charger. Honestly in this day and age these smartphones should come with an extra battery lol
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
My battery and phone are both less than a month old, as for humidity that doesn't drain a battery from 50-0% on idle in a few hours. Also I've posted new screenies, messaging used ~20% without being used and stats showing 0s awake. maps did something similar despite disabling all location services and unticking all boxes in the gps submenu. My issue isn't bad battery life, its idle battery life. I shouldn't lose 2% per hour or more when I unplug and go back to sleep.

Battery Issues

Our devices use a 4600 mAh battery and was wondering if anyone ever actually sees that figure? I've been struggling to get more than 4-5 hours use and started investigating why. The highest I've ever seen on a full charge is 4309 and the average is about 4260-4280.
Another strange thing I've noticed is that if I start playing a game with 100% charge and the tab plugged in I still loose about 1% per minute.
I've tried multiple roms and they all seem about the same as far as battery usage goes. Right now I'm back to the stock LG KitKat as it seems to perform about the best for me and very stable. I use the battery calibration app and was wondering is there another that might work better?
In closing looking forward to any suggestions or advise

Yep,same for me.battery life is terrible.have tried multiple roms,lucky to get anywhere near 4hrs.
Sent from my LG-V500 using xda app-developers app

I just tried an experiment, 100% charged, unplugged tab w/o turning anything on and I already lost 7% in 15 minutes !! I have Greenify installed and all non system apps hibernated and it still eats the battery.
My Sero Pro can sit all day and only loose 1%. If I could be sure I would receive a perfect unit I would consider RMA. But after reading all the issues with the screen problems I'm not going to take the chance. My tab is perfect aside from battery life.
I found a replacement battery on Ebay and am considering buying it to see if I have a bad battery. Something definitely isn't right.

I went to Mahdi rom as soon as I got my tablet about 2 weeks ago. This past weekend I did two battery tests.
These tests were done with wifi always on (medium signal strength, most google apps synced, google location reporting off, no twitter/facebook app, no greenify or any power management apps
If I left the display on indoors at auto brightness, it lasted for about 7-8 hours.
If I left the tablet idle (display off), it consumed about 3% per day (most of it consumed by wifi).
I would suggest trying the same thing with yours and see whether its a hardware issue. You can just do it for a few hours and extrapolate.
I've never calibrated my battery (drain until its empty) unless I notice an erratic drain from a constant task.

Mine is the same, not being used it drains almost nothing. Currently mine is at 49%, been unplugged about 12 hours with 2:47 of screen on time according to the battery stats in settings. 100% stock KitKat, bluetooth off. 15 minutes of screen off (with the screen on long enough to look at battery settings) and no % lost.

burns11 said:
Mine is the same, not being used it drains almost nothing. Currently mine is at 49%, been unplugged about 12 hours with 2:47 of screen on time according to the battery stats in settings. 100% stock KitKat, bluetooth off. 15 minutes of screen off (with the screen on long enough to look at battery settings) and no % lost.
Click to expand...
Click to collapse
Same. If I leave it in standby overnight, I see zero battery drain (in 8 hours). I also tested a full HD movie (1080p) in full screen at 45% brightness and medium loudspeaker volume, and measured roughly 12-14% drain per hour, which suggests it could run 7-8 hours of movie playback on a single charge.

I'm happy with my battery usage. I think it's at least as good as my 2012 N7.
Here's a screen shot of usage just reading the other day. Keep in mind I mainly stop my tablet charging at between 90-95% as often as possible.
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Sent from my LG-V500 using XDA Premium HD app

I'm with the OP as far as battery drain goes. Mine loses almost 10% in 12 hours at idle with wifi on. With wifi off it'll lose about 3-4% in 12 hours. I haven't done a full to zero test, but battery life is not that great on my personal unit. That is the only thing I don't like about it. I'm running idterror's v50018a ROM.

robotapocalypse said:
I'm with the OP as far as battery drain goes. Mine loses almost 10% in 12 hours at idle with wifi on. With wifi off it'll lose about 3-4% in 12 hours. I haven't done a full to zero test, but battery life is not that great on my personal unit. That is the only thing I don't like about it. I'm running idterror's v50018a ROM.
Click to expand...
Click to collapse
Then you have an issue with software you installed. It is neither the battery nor the ROM.

Well I went ahead and ordered the battery. I'm fairly confident it'll solve my problem. To Subtleone, with my tablet even with a barebones install I still have real bad battery life. It does not change very much between barebones and all my apps installed.

Subtleone said:
Then you have an issue with software you installed. It is neither the battery nor the ROM.
Click to expand...
Click to collapse
I don't think so. Even with a barebones install I get similar battery drain. But I knew the G Pad had terrible battery life going in as noted by every industry review I read prior to purchase.

Don't have any battery problems here (stock KitKat, rooted and most non-system apps greenified), get about 6 hours screen-on time at 70-100% brightness when reading books (wifi off) and an hour or so browsing/youtube'ing.
Are people actually going by unplug time until the device physically shuts down, or just what the battery bar claims? Battery stats are rarely 100% accurate, and there's protection measures built in to prevent a battery actually reaching 100% or 0% despite what the device says.

robotapocalypse said:
I don't think so. Even with a barebones install I get similar battery drain. But I knew the G Pad had terrible battery life going in as noted by every industry review I read prior to purchase.
Click to expand...
Click to collapse
Except that I don't have terrible battery life. In fact, most don't. With KitKat (the one in my sig), with WiFi on, I get exactly 0% drain after 8 hours with it in standby (not actually off). Zero. Needless to say, I do not have any known battery killers such as the Facebook app.
At 45% brightness or so, I see about 13% battery drain after an hour of watching a 1080p movie in full screen with sound coming through loudspeakers.

Subtleone said:
Except that I don't have terrible battery life. In fact, most don't. With KitKat (the one in my sig), with WiFi on, I get exactly 0% drain after 8 hours with it in standby (not actually off). Zero. Needless to say, I do not have any known battery killers such as the Facebook app.
At 45% brightness or so, I see about 13% battery drain after an hour of watching a 1080p movie in full screen with sound coming through loudspeakers.
Click to expand...
Click to collapse
That's incredible. What exactly are your settings? And what are these known battery killer apps so I can freeze them when I'm traveling?

robotapocalypse said:
That's incredible. What exactly are your settings? And what are these known battery killer apps so I can freeze them when I'm traveling?
Click to expand...
Click to collapse
Biggest battery eaters are apps like Google+ and Facebook.
UCCW and Weather apps too. Also having gps on.
There's some smashing eye candy apps for use and just for info on your lockscreen, they all seem to suck juice like no tomorrow. It's all the updating they do.
Best advice is to use something like wakelock detector to highlight your problem apps, then use greenify to get them to sleep properly. Also have your wifi set to only stay on when your tablet is plugged in.
Sent from my LG-V500 using XDA Premium HD app

To test a lot of theory I loaded up stock LG KitKat this A.M. . After letting it install and rebooting 3 times in 60 minutes I turned off WIFI and GPS and left it idle. In 4 hours and 12 minutes I was at 79%. Keep in mind when I left it idle the last time I was at 100%.
So at least in "my" case its most certainly not the software. My battery is scheduled for delivery 5/9/14. I'm hoping that will solve the battery issues.
Once I receive the new battery I'll update the thread. And thanks for the replies

whoamigriffiths said:
Biggest battery eaters are apps like Google+ and Facebook.
UCCW and Weather apps too. Also having gps on.
There's some smashing eye candy apps for use and just for info on your lockscreen, they all seem to suck juice like no tomorrow. It's all the updating they do.
Best advice is to use something like wakelock detector to highlight your problem apps, then use greenify to get them to sleep properly. Also have your wifi set to only stay on when your tablet is plugged in.
Sent from my LG-V500 using XDA Premium HD app
Click to expand...
Click to collapse
My GPS is always on so I do not think it drains battery in any unusual way. I'll also add that it works darn well. I used the tablet for navigation in a car and it was impressive.

So to continue the theories I put my screen @ 50% watched 60 minutes of 1080p video via MX Player and lost 31%! That's totally bare aside from MX Player. So after seeing Subtelone's results I'm very convinced I indeed have a bad battery.

I know it's not a fair comparison but I've been using my mum's Acer W4 tablet as my 8.3 is being repaired for bad LCD (mura/spots). The W8.1 tablet actually gives me about 8-9 hours of web browsing time. Yes, it's got fewer pixels to push but bear in mind it is running the full fat Windows 8! I just think it's quite disappointing that the LG pad for me barely lasts 4 hours SOT when I mainly use it for web browsing.

meanoc said:
So to continue the theories I put my screen @ 50% watched 60 minutes of 1080p video via MX Player and lost 31%! That's totally bare aside from MX Player. So after seeing Subtelone's results I'm very convinced I indeed have a bad battery.
Click to expand...
Click to collapse
Yes, something is seriously wrong with your battery if everything else is identical. My results are exactly as posted.

Battery life

Hi, yestarday, I've recived LG g3, I've switched to it, because my G2 starting to have very poor battery life, like 10 hours with 3h with screen on. I've searched the forum, and I notice that most of u have 5, 6 hours screen with 30 h or more of use, but for me it will be the same as on g2, maaaaby a little bit better, I've restored all my apps, yes, but non of the battery monitor apps showing that some app is using high percentage of battery, let me show some screen shots:
https://www.dropbox.com/s/0iefcko9xqun9uu/2014-10-08 07.22.15.png?dl=0
https://www.dropbox.com/s/l5k5pmwdcy0o8bg/2014-10-08 07.22.22.png?dl=0
https://www.dropbox.com/s/pnwgu7ow4uge593/2014-10-08 07.23.09.png?dl=0
https://www.dropbox.com/s/wvkva95f46x6iid/2014-10-08 07.23.13.png?dl=0
https://www.dropbox.com/s/9bo8erunaq42iec/2014-10-08 07.23.32.png?dl=0
https://www.dropbox.com/s/d6v5qc57ca9xd6d/2014-10-08 07.23.43.png?dl=0
https://www.dropbox.com/s/45kpgxofq6aovhv/2014-10-08 07.23.52.png?dl=0
https://www.dropbox.com/s/98o09tb14oh1f8f/2014-10-08 07.24.57.png?dl=0
https://www.dropbox.com/s/cdc2hdgmmkfbg33/2014-10-08 07.25.06.png?dl=0
Some of them can ba inaccurate, because I've just rebooted my phone, but u see that my phone was on 12 hours (with about 7, 8 hours at night doing nothing and switching to 2G only) I had 2h and 35m of screen, and I didn't play any games, just browsing internet, and I have 46 percent left...
What could causing this poor battery life? It can be some app, that is not showing in battery monitor as a draining one? Or what could be the issue?

You need to root your device and install Better Battery Stats, Xposed Framework, and Wakelock Terminator. Then use bbs to determine which Wakelocks you need to terminate to save battery.
Using this method got my battery drain down to about 1% per 6h of screen off time.
I had to terminate 2 wakelocks to fix my battery life: NlpCollectorWakeLock in Google Play Services, and WifiOffDelayIfNotUsed in Android System.

Nyorbee, I might be wrong, because I own g3 only for a few days, but your battery life looks to be pretty normal to me.
The phone drains really slowly in standby, but 4 hours screen on time during a regular day looks to be quite ok.
Web browsing is particularly taxing on the battery, because of the high res display.
Do not expect the same battery as on G2, from my experience it is lower at least by 1/3 (I upgraded from G2 too).

Gebnar said:
You need to root your device and install Better Battery Stats, Xposed Framework, and Wakelock Terminator. Then use bbs to determine which Wakelocks you need to terminate to save battery.
Using this method got my battery drain down to about 1% per 6h of screen off time.
I had to terminate 2 wakelocks to fix my battery life: NlpCollectorWakeLock in Google Play Services, and WifiOffDelayIfNotUsed in Android System.
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What do you think about that? Everything looks normal to me, but I could be wrong.
I can also test this again with full battery from 0 to 100
Sent from my Stacjonarny using Poczta Polska.

nyorbee said:
What do you think about that? Everything looks normal to me, but I could be wrong.
I can also test this again with full battery from 0 to 100
Sent from my Stacjonarny using Poczta Polska.
Click to expand...
Click to collapse
Yeah, we will definitely need more than 10 minutes of data. You don't need to go from 100 to 0 though. Just get some data from a few hours of screen off time and show me both the kernel wakelock and partial wakelock info.
Edit: The screen off time doesn't have to be all at once. However, the easiest way I found to pinpoint my battery drain was to charge the phone fully just before bed, and unplug it overnight.

My sensor usage also strikes me as very high. Is there anyway to figure out what sensors are keeping the phone awake so much of the time?

I need to see your partial wakelock info as well. Those sensor readings alone don't tell me much. One thing to keep in mind: as you reduce the usage of pointless activities, the usage percentiges for other activities like sensors will rise, but this doesn't mean they are consuming more battery.
I also need to know how much of that time the screen was on/off. If your battery drained 70% in 10 hours of screen off time, it wasn't just your sensors, i can assure you.
You should also consider whether your battery is defective. If you get a good amount of screen on time with a full charge, the battery is probably OK. But if you can drain a full charge in an hour or two of heavy use, you might need to replace your battery.
Good luck!

Also try Wakelock Detector / Greenify - an amazing battery combo

Gebnar said:
I need to see your partial wakelock info as well. Those sensor readings alone don't tell me much. One thing to keep in mind: as you reduce the usage of pointless activities, the usage percentiges for other activities like sensors will rise, but this doesn't mean they are consuming more battery.
I also need to know how much of that time the screen was on/off. If your battery drained 70% in 10 hours of screen off time, it wasn't just your sensors, i can assure you.
You should also consider whether your battery is defective. If you get a good amount of screen on time with a full charge, the battery is probably OK. But if you can drain a full charge in an hour or two of heavy use, you might need to replace your battery.
Good luck!
Click to expand...
Click to collapse
Thanks for the response. Here are the partial wakelocks, captured at the same time. Unfortunately, I didn't capture the "Others" page, but screen on time was about 3 hours. Wake time was considerably higher than screen on time. I've rebooted the phone, in case something weird was going on. I see what these numbers look like tomorrow. If they still seem odd, I'll repost with all the relevant data.

Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10 07.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10 07.05.38.png?dl=0
I've lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than I'm loosing 1 percent every one or two minutes. I'm out of juice in 10 to 12 hours with less than 4 houurs of screen. I'll show u my stats after full battery cycle. And I have two batteries, it's the same, so I guess this is not battery fault...

If your big drain is coming from screen on time, I suggest using gsam battery monitor to determine what's eating the battery. It's easier to read, and I find the stats a bit more relevant for screen on drain.
4% loss over 8 hours of screen off time doesn't seem bad at all, honestly. Its probably improvable, but not necessarily worth the effort.
What are you doing during your screen on time, and what screen brightness? I can burn a full charge in about 3-4 hours of Netflix at full brightness and full volume, but I get considerably more time if I'm browsing the web at minimum brightness.
Edit: I'd you don't use it, i highly suggest disabling or uninstalling google search. It's a prime culprit for wasting battery. I'm not entirely sure, but this might break google now, if you use that. Of course, google now is also a big battery waster.

Are you on WiFi most of the day? I'm just curious, is this a residential AP or are you on a corporate network? We recently upgraded our school to a Meru wireless network, and since then my battery will go from 100 > 50 in 8 hours, versus 100 > 80+ when at home, and at home I use it even more.
When I use BBS at work, the awake time is MUCH higher, and I also have very high sensor use.

This is mine with wireless on and sync on. Rooted and Unbounced. Removed some programs access to internet.
But when i use it it drains like normal.

nyorbee said:
Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10%2007.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10%2007.05.38.png?dl=0
Ive lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than Im loosing 1 percent every one or two minutes. Im out of juice in 10 to 12 hours with less than 4 houurs of screen. Ill show u my stats after full battery cycle. And I have two batteries, its the same, so I guess this is not battery fault...
Click to expand...
Click to collapse
I'm experience a huge draining in battery life just last few days. It was perfectly fine but not anymore. I have tried to factory reset with no luck. I have greenify at work.... I don't know how to read from better batt stats data so I was hoping someone here would be so nice to help me with that.
Here's the log file:
http://goo.gl/xD5HE0
I'm not trying to steel your thread. But since we have the same problem we are search for similar solution....

Is it safe to disabling the services of google? My phone has v10c rom and can at most 3h of screentime.

If you disable Google Play Services you won't be able to use the play store or some other google apps. However, you can use Wakelock Terminator to prevent it from draining your battery.
I have frequently read that some wireless networks can cause more drain than others. If this is what's draining your battery I'm afraid I don't know of any good solution. If you have a good data connection and/or unlimited data, you may get better battery life using that. Have you tried disabling mobile data entirely when you're in Wi-Fi range? I have very limited mobile data, so I keep it off unless I have a specific need for it. I do think this has improved my battery a bit.
Again, i suggest getting gsam battery monitor. It's free on the play store, and offers an easier display of what's eating your battery compared to BBS.
Edit: don't get discouraged if you have some trouble getting your battery life up to spec. It took me three weeks of googling and tweaking to get mine where I'm happy with it.

nyorbee said:
Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10%2007.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10%2007.05.38.png?dl=0
Ive lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than Im loosing 1 percent every one or two minutes. Im out of juice in 10 to 12 hours with less than 4 houurs of screen. Ill show u my stats after full battery cycle. And I have two batteries, its the same, so I guess this is not battery fault...
Click to expand...
Click to collapse
Go to settings/apps/Google play service/uninstall updates.
That did the trick for e

svavartr said:
Go to settings/apps/Google play service/uninstall updates.
That did the trick for e
Click to expand...
Click to collapse
Unless you're using Hangouts...
Sent from my caseless LG G3, because I believe in myself

Use greenify with root and xposed.
Also, I hear that battery is better after a week or two.
Sent from my LG-D851 using XDA Free mobile app

Here are my stats after 80 % of battery waste:
https://www.dropbox.com/s/xj408mf0r9m8ric/2014-10-11 03.31.57.png?dl=0
https://www.dropbox.com/s/b11l2i8mtqle87h/2014-10-11 03.32.07.png?dl=0
I've got just 10 h, and maby hour or hour and a half os screen