Battery life - Nexus 7 Q&A, Help & Troubleshooting

So what kind of battery life have you guys been seeing? I did a full kill and then a full charge and I'm at a day and 3 hours with around 24% left.
Sent from my Nexus 7 using xda app-developers app

I also did a full drain then full charge. Currently at 23% with 1d 4h 58m on battery and 4h 33m screen time.

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Battery?

How is everyone doing with battery? 2.5 hours unplugged and 30 minutes of display and I'm down 10%... Not great.
Takes a few days to condition the battery.
Sent from my HTC Glacier using XDA App
Great. Battery wuz at 15% when I wuz at work. Some texts, download few apps, and some internet browsing, 4 hours later it went to 5%. And I bought the mytouch 20 min before I went into work.
Sent from my HTC Glacier using XDA App
At that rate, you will get 5 hours of screen usage. That is fairly good, although not the best.
I get about 7 hours of normal use.

Battery graph showing wifi always on

Just got the phone yesterday and won't even get into the atrocious battery life but my issue is in the stock 2.3 battery graph wifi is shown as being on the past 2 hours but I had it on about 5 minutes...
And for about the past half hour no data of any kind has been turned on
Sent from my PC36100 using XDA App

Regarding battery life

Hello
Long time Hero user who switched to blackberry and now back to android. I've had note 2 for 3 months now and I'm actually disappointed from its battery level. Not that its not enough. .it just didnt live up to its expectations
Through constant whatsapp messaging only (today) 40% drained in 7-8 hours. . I know its a long time but shouldn't it last longer or is 3g that much of a battery usage?
Also does charging with a 2a non official charger might affect my battery? And with the time frames I have available for charging I can never get a full charge. .does that matter?
And is pile stocking on applications and games affecting my battery? Even if they are not open? (Currently using go power master for that)
Sent from my GT-N7100 using xda premium
Show some screen shots of the battery graph. I was just wondering what was your screen time to get a better idea.
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Ive already charged it for a bit
Sent from my GT-N7100 using xda premium
You can click on that little chart to see a more detailed view of your battery consumption. Your battery life is a bit on the short side (compared to mine at least), Im guessing the screen is the culprit. Do you have brightness all the way down? How much screen time does the phone get?
@Shei77
For me is battery consumption pretty fine. It depends of course what I am doing with the phone through the day. For example yesterday after whole day "playing" with phone from time to time I had around 70%. I am chargin it when I go to sleep because still if I have in the morning 30-50% it wont make it through day when I dont have option to charge it. Just to add, I have Wifi and GPS always on.
If constant messaging for 7-8 hours means the screen being on for 7ish hours, you have ridiculously good battery life at 40 percent..
Sent from my GT-N7100 using Tapatalk 2
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adytum said:
If constant messaging for 7-8 hours means the screen being on for 7ish hours, you have ridiculously good battery life at 40 percent..
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Nah.. its sending a message every 4-5 minutes average..
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I'd say your battery life is fine, im guessing maybe even better than mine. Im doing 6h 37m right now with 69% left, H+/3G always on, with moderate screen time and a bit of gaming.
Huh..what about charging?
Also any tips for extending? Ram keeps filling up after some time..is it cause I have a lot of applications?
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Shei77 said:
Nah.. its sending a message every 4-5 minutes average..
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Click to expand...
Click to collapse
Could you post your screen on time? Tap on "Screen".
Shei77 said:
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Click to collapse
As shown from your screenshot your phone signals are really bad. That might be contributing to the drain of the battery.
I think your battery life is fine :good: Usually with my note 2 i can do 4 display hours and 1 day or more of battery life. 3g/h+ always on, lumi 50% all sync on, calls, gaming and web.
This is the current on screen which is a few hours after the first screenshots
What can I do about signals? And if I have a lot of apps do they consume battery through background?
Sent from my GT-N7100 using xda premium
Really, your battery life isn't that bad. The 7 or so screen time hours you'll get if that continues, is pretty good!
And to your other questions, charger type doesn't affect battery performance. Charging time should take around 2,5 hours from 0 to 100, if you're far away from that, the charger might be at fault.
Sent from my GT-N7100 using Tapatalk 2
Charging usually takes 3 hours for a full charge and according to my charging current its using 1698mah
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I updated it just a couple of days ago I need an expert opinion on how good my battery's time is.
^No offence, but without screen on time a battery stats is just meaningless!
So kindly post your 'Screen on' time.
@shei77: You're on H+ and you're having almost three hours screen on time, with 60 odd percent left. That is very good battery life.
'Swyped' from my GT-N7100
Maybe a bit OT, but what I have noticed is that when the phone reports fully charged, Elixir widget still displays 1600mA being charged into the device? Also, when the battery is full at 100%, the phone is still pretty warm! I don;t remember my HTC did that? It was warm, but when it reached 100% it cooled down and was not hot anymore... I tend to keep phone in charger in the evening because I use wifi hotspot....
My battery life is awesome I'm on cm 10.1 rom with uneak kernel, cm 10.1 is smooth and great performance and great on battery life,
I have attached a screen shot of battery stats...
Sent from my GT-N7105 using xda premiumw

i9505 - idle drain

....another boring battery thread...sorry. My S4 seems to drain quite abit when idle, well I expected to be less at least. 66% after 9 hour, 1 hour screen time, mainly web browsing on WIFI.
Does that seem about right?
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Nexus 7 battery drain overnight

I purchased a nexus 7 recently,updated to 4.3,locked and unrooted as of yet. I currently have 2 user accounts active on it. Since my first 100% charge, I have been getting tacky battery life. I follow the 100% charge and discharge till 1% method. Overnight with WiFi on and all apps closed,I'm getting a drop from 74% to 57% . Looking in the battery stats doesn't help as it doesn't show any unusual ongoing background activity. I'm also getting around 6 hours Screen on time,I could never exceed this mark. I only have the customary Google apps,Facebook,Twitter, instagram,pulse,and 3 games installed. What can be the reason of this ?
Sent from my Nexus 7 using xda app-developers app
Those apps keep running.. Also some third party apps push ads and also turn screen on, which could drain battery..
For better battery life, you can turn wifi off if not needed,.
Sent from my Nexus 7 using xda app-developers app
I tried with WiFi off one night, I got around 9% drain still. I kept the sync interval at the maximum in every data fetching app I have installed too.
Sent from my Nexus 7 using xda app-developers app
You might well try the app Better Battery Stats, and see what it believes is keeping your tablet from going into deep sleep. 9% drain overnight is not terribly excessive -- it should be more like 5%, I guess.
My 2012 nexus 7 had 51% before I went to sleep last night and when I woke up this morning it was completely dead. I didn't even get a charge icon when I plugged it in to charge. I had to leave it for an hour then tried again and it fired right up.. Hope I can see what's causing the drain with better battery stats
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I was using mine once in the morning,when the battery hit 4% it suddenly shut down. I tried to charge but the battery icon wouldn't show up. Started it finally using the tips on the Google support site. Must say,I've been plagued with battery issues. I'll try a factory reset and while on it unlock the boot loader too.
Sent from my Nexus 7 using xda app-developers app
I checked with BBS with WiFi off overnight. "PowerManagementService.wake lock" is keeping my N7 awake. Any solutions?
EDIT: I checked in partial wakelocks,AudioOut_2 was the highest at 30m runtime.
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