Develop Bugs

What killed my battery?

What the heck killed my battery? This is with the extended battery and I started from a full charge after flashing a new rom and clearing battery stats..
I turned off all connections, and turned off sync.. Sat the phone down and went to bed after about an hour of web surfing.. I went to bed with 70% left and woke up 6 hours later with 37%...
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Sent from my Galaxy Nexus using XDA App

Its all in the last screenshot. Keep awake time is huge. That's the bug if I had to guess.

martonikaj said:
Its all in the last screenshot. Keep awake time is huge. That's the bug if I had to guess.
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That keep awake time is normal, nothing strange there...
Your story of browseing for an hour then going to sleep for 6 hours doesnt match your batteries' graph.
According to your story, there should have been a sharp decline from browsing web since the screen would be sucking the power, then a very slight decline from being idle, something was either running in the background (facebook maybe, it has a high % of usage) who knows?

Yeah idk.. If you look at when wifi was on that was when I was browsing.. Then after that there is a steep decline which doesn't make sense to me.. I don't think it was Facebook or anything because all data/sync was off...
I know it takes a day or two for a new rom to settle in but I certainly wouldn't think it would have that large of an impact
Sent from my Galaxy Nexus using XDA App

I read somewhere that there is/was a bug where after a reboot Google talk or maybe google+ launches the camera in the background which keeps running until you manually open the camera app and close it. I believe I read it some where on Franco's kernel post. Not sure if the bug is still there and if it's the culprit here, but might be worth investigating.

Weird battery activity

So I charge my phone all night, take it off the charger to go to work at 6am by 3pm my battery is at about 8 percent. Here is where it gets funny, if I turn the phone off then back on I have about 59%. How does that happen
Sent from my Galaxy Nexus using XDA App

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Sent from my Galaxy Nexus using XDA App

Sorcery. That's how.

I'm guessing the reason your battery gets drained so quickly is because of the poor network coverage.
Could you also provide a screenshot of the apps/programs/hardware that have drained your battery? By that I mean the screen you see after hitting battery under settings.
The fact that it goes up so much after a reboot is very weird indeed. It usually happens the other way around with mine, the battery level drops about 15% for me after a reboot, which I also find weird.

I have had the same expierence with my phone as well. Dont understand it either.

I suggest you use a battery calibration app or s-off/root and install Clockwork Mod recovery to clear your battery stats and run a few cycles. Your phone doesn't know where full is and can't detect it as well as we'd like.

Sent from my Galaxy Nexus using XDA App

I think you need a battery calibration. Before i calibrated mine would drop 10-15% sometimes but now it is good. I would also add expect a small margin of error if you were using your phone heavily and it is warm/hot and you reboot. Some people report, myself included, that you might see a slight spike after your phone cools down.
My grandma beat me down and took my nexus. Sent from a jitterbug with beats by dre.

Desire Standby Time Results

Hey all,
I just thought I would post this as I thought it was quite incredible.
I don't know what HTC's stats are on 'standby time' (which is usually how long a phone will last with no radio gear active) but look at how long my Desire lasted when I took the sim card out
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That's 302 hours
Just Sayin'...

Another thing that I noted was the vast amount of 'awake' time vs 'screen on' time, sometimes lasting hours.
What does android have to do so desperately whilst the screen, radio, wifi, in fact everything is turned off??

CheesySeb said:
What does android have to do so desperately whilst the screen, radio, wifi, in fact everything is turned off??
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Its not Andeoid really. My best bet would be that Go Weather app.
via xda app

I'm not entirely convinced that it is, I could uninstall GoWeather or do a /userdata wipe and retry to see if it'll last any longer?

Even if you put it on airplane mode, the apps you have would still try to wake up every now and then to try and refresh themselves. If you have a resource hungry app then it will wake your device to do the task it needs to perform. It may or may not be go weather app but there is something installed on ur phone that is keeping it awake even on standby. That's what I think anyway.
via xda app

Ha ha ha ha...looks about the same as my desire. I got one hour battery life on idle once with 3G off, wifi off and most of my user apps killed.
My phones been charging for the last four hours and it hasn't moved from 75%. It dies in ten minutes If I use the data connection when it's discharging.

[Q] Battery Calibration Question for Classic v0.0.9

Sorry, I can't post in the ROM thread yet. Just wondering if I need to calibrate the battery every time I pull the battery. I ask because I use a wall charger for my batteries.
I have three that I rotate so I always have a fresh one with me. I feel a lot better letting the wall charger do the work so its one less thing the EVO has to do. No wear and tear on the port too.
If anyone has any idea I would appreciate it.
Thanks, Che

No, you just need to calibrate the battery each time you flash the rom; pulling the battery is fine.

Thanks. Wasn't sure if it needed to be done for each battery every time since they are different ages and have limited lifespans.
I've been doing it every time and have been getting amazing battery life. Could be the new ROM too.
Sent from my Classic

I use to calibrate the battery as well until I read heard about by wiping it doesn't do anything... Correct me if I'm wrong.. just throwing that out there..
Sent from my PC36100 using xda premium

To be honest, I'm not 100% on what exactly happens during battery calibration.
I thought it was something done to the phone; how it saw the limits of the battery; and not something done to the battery it self.
Any one who knows a little more about it feel free to correct me.
WITH CALIBRATION
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WITHOUT CALIBRATION (but streaming and playing music for hours)
Sent from my Classic

Question Google Photos consumes a lot of battery

I have recently purchased the GT Master Edition and I am doing very well. I noticed that Google Photos consumes a lot of battery, about 5%. I tried to check in the settings but the automatic start cannot be disabled, does anyone have the same problem as me or know how to fix it?
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@Pippo_02
HELLO !!!!!!
I too have the same battery drain problem.
Download this app and see the "real capacity" of your battery !
https://play.google.com/store/apps/details?id=com.digibites.accubattery&hl=fr
My phone is new and I realized that I was at 45% of its real capacity !
And my phone is 100% charged
Maybe a problem with the C.06 update
The Realme has 2 batteries, so I couldn't tell you !

I think yours is a software problem. My problem is not that the battery does not last long, it is that Google photo consumes too much battery, it had even consumed 15% on 100% recharging. I solved by uninstalling it, but I would like to have it because I used it to look at photos instead of the stock app ...

@Pippo_02
If you solved the problem, great !
Otherwise, if one day you have a similar problem, in the application you have an awesome tool that shows you the discharge speed for each application, in percentage and in mA !

ToutanVrac said:
@Pippo_02
If you solved the problem, great !
Otherwise, if one day you have a similar problem, in the application you have an awesome tool that shows you the discharge speed for each application, in percentage and in mA !
View attachment 5620805
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Click to collapse
In the realmeUI these features are already present, without the need for third-party apps