Wakelock battery drain - Nexus 7 Q&A, Help & Troubleshooting

Any idea how I'd get 10.5 hours of mediaserver overnight. Screen of, WiFi off.
Audioout_2 5.5 hrs
Audio in_1e 5 hrs
Power manager services.wake locks 10.5 hrs
I played a game "Howler" for a few minutes last night, but closed it and only showed up as running 10 minutes. Did try to listen to a couple song snippets on amazon web site that wouldn't play, but closed browser when done. Battery drained 30% over night, usually only drains 2-4%. Stumped.
Edit: I just force closed Howler (even this did not show as running), and those wakelocks stopped. Uninstalled (after giving 1 star).

Related

Is constantly killing apps bad for battery life?

I was wondering, if I constantly am killing running process and they are always reloading (voice input, settings, gmail, market, etc), will this drain my battery faster? I'm at 76% with light use from a full charge and the phones been unplugged for around 4 1/2 hours.
That seems normal. mine usually dies within 6 hours, with all settings off. i think i need a new one. under battery settings it says display used 67 % of my battery life and for display time on it says 28 minutes
I've got my display using 73% followed by live wallpaper with 6%.
I mean Display% being higher just means you were actively using your phone more... or you set your timeout too high.
I don't think the actual restarting of the apps uses more battery vs them just running in the background all the time. Unless for some reason they restart almost instantly and you are constantly mashing the kill all apps button then maybe?
As far as your phone dying in 6 hours, that does not sound right at all. Mine definitely goes quite a bit longer than 6 hours consistently. It is currently at 38% battery after 17 hours 24m, with display having used 46% with 55m24s on. Part of that was while it was full brightness when I was outside. I have been at work though so its largely been sitting on my desk. Even when I first got it and was playing with it a ton it went well over 6 hours on a charge.
Some people do seem to have problems with battery life and I can only assume there's a bunch of bad batteries out there, or they are really hammering it..
I used about 25% in 6 hours today from normal usage* and that's even after driving around for half an hour streaming last.fm over bluetooth via 3G.. Sync switched on, wifi off, twitdroid running in the background. The only special thing I have is the setcpu idle tweak.
* Fair bit of browsing, some twitter, the usual 'ooh look you have a google phone' impromptu demos..

Battery Statistics Thread

I thought we could have a thread posting battery statistics in the similar fashion to the one on the Captivate General forums.
1. Make sure your battery is properly calibrated.
2. Charge the phone overnight.
3. Start using your phone in the morning and do not charge throughout the day
4. When your battery hits ~5% record your statistics.
Here's my latest stats:
Still using K10H 256hz kernel on BUPJ8 Doc Rom v9
Have a black background with a black theme, brightness on Auto today.
5% battery after 14h4m
Display 95% with Time on 3h41m6s
Cell Standby 3%
Phone Idle 1%
In Battery History
Running 40.3% 5h40m without sleeping
Wifi on 16.7% 2h21m
I was using JuiceDefender till I got home and also had 3g disabled a majority of the day, however after I got home I wanted to see the drain without juicedefender on.
Drain without juicedefender when on 3g was pretty appalling, probably a % every 5-10 minutes.
Mostly just
-Bit of Tweetdeck
-Few minutes browsing web
-Texting
-Emails
-1 phone call (5 minutes)
-Read Ebooks for 30 minutes
-Played Dungeon Hunter for 23 minutes
-Music for 1hour
-Grocery list for 18 minutes while shopping

How much and quick should G2 deep sleep when off

I am pretty impressed with the G2 battery especially while in use. I originally got the phone and was in awe how it would go 3 hours from full charge with still 100%. So last 2 nights wanted to see what it was like all night. It looses about 2% per hour. Not terrible but Gsam shows the phone is awake for like 7 hours. I have messed with some setting and such and I will turn off for an hour then recheck. Right now it shows it was awake for 42 minutes and off the charger for 43 minutes. Woke device 8 times with 127 wakelocks. Cache update service for 42 minutes. 2% in 45 minutes battery. So the question is, how quick does the phone go into deep sleep.
tw557 said:
I am pretty impressed with the G2 battery especially while in use. I originally got the phone and was in awe how it would go 3 hours from full charge with still 100%. So last 2 nights wanted to see what it was like all night. It looses about 2% per hour. Not terrible but Gsam shows the phone is awake for like 7 hours. I have messed with some setting and such and I will turn off for an hour then recheck. Right now it shows it was awake for 42 minutes and off the charger for 43 minutes. Woke device 8 times with 127 wakelocks. Cache update service for 42 minutes. 2% in 45 minutes battery. So the question is, how quick does the phone go into deep sleep.
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it sounds like you have the 'wakelock' problem. is it google services or android system thats taking up all the power? i have that problem on my wifi at work, for whatever reason. when im on that wifi, NLPwakelock is constantly waking my phone and keeping it from going to sleep so my battery drains quickly. if im on my wifi at home or on 4G LTE then i dont have that problem.
trying turning off wifi. if you are still having the problem, you might need to turn off location reporting and location history under google settings -> location, and access to my location under settings-> location access. see if that helps.

[Q] is it acceptable battery timing?

Okay, some days back after getting KitKat update I noticed heavy drainage. So I stopped all apps and lowered the brightness putted phone for airplane mode ( still same setting). So it become a little better. So yesterday I downloaded greenify and greenified all apps... Then at night I charged phone and it was 45%. Closed wifi . Greenfied all apps remaining.. At morning 43% battery was left. (Its good). Then I started Modern combat blackout game l
, speed VPN (as pakiatani game server won't work), WiFi.. After playing for 45 mins I got 15% bettry warning.(it sux).. And now while writing I lost 2%. Is it acceptable? For KitKat?
Mostly I get from 10% to 4% after cca 2 minutes, then 2% and power off after 30sec. But not from 15%.

Honor 6 Battery Stats

Hello, put here your stats from battery
How much you get hours on the screen etc.
Never took a screenshot after full drain...normally with an hour of asphalt 8 and few hours of browsing with wifi,couple of hours of videos on local storage and other things altogether i get 6 hours screen time with a standby of 35 to 40 hours with 50 to 60% brightness on manual brightness...that is after draining the battery to 7%.always i have location services turned on with battery saving and googlenow too turned on all the time..wifi i turn only wheni turn the screen on...without gaming i get 7 hours screen on time with same standby time...i donot use whatsapp and autosync is turned off..if we try to push it hard with just one app like a news reader open we can see 10 hours screen on time with this phone..because when reading through just one battery drop is 1% for 8 mins..have attached images i took with 32% battery remaining...
I managed to get 4 days standby with 4 hours on screen time. Phone was charged for 10 minutes during this from my PC (extracting a file from it) which shouldn't have made much of a difference as it takes a lot to charge the phone (2a).

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