Develop Bugs

High android system usage at 20%.

I usually get android system usage at 1%, hence im freaking out. Help please! Could it be because i use vipernod, v6 supercharged and savagezen kernel?
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I would say it could be any number of things, however the question is, what have you changed recently? Any updates, new apps?
Also, with this increase have you seen any decrease in your battery usage? I will have 70+% android usage sometimes but battery doesn't drain any faster. This is a normal thing for AOSP especially. Someone noted that they had high A.S. usage on a stock Nexus 4g.
This may just go away with a days usage, but be sure to check for partial wakelock. This option is in Spare Parts app not sure if its built in to MIUI. The wake lock is what kills your phone, when an app goes bonkers and keeps your phone awake.
Sent by Supersonic!

True. Miui has updates every Friday. So yeah, i updates last Friday. I switched from tiamat to savagezen just so i can fix the high usage but to no avail. I can't check battery partial lock because miui has battery stats issues right now.
Sent from my PC36100 using Tapatalk

In addition to what imheroldman stated, charging your device will oftentimes cause your android system usage to spike, but 20% is nothing to be concerned with.
from my EVO 4G

[Q] G2 Battery Life Issue

For the past couple of weeks ive been having issues with the battery life on my G2. I used to get 12+ hours of battery life on it but now im only getting about 7 or 8. Ive tried recalibrating the battery, clearing the dalvik cache, and changing settings on certain apps but that hasnt seemed to make a difference. Ive noticed that at the end of the day, the android system takes up a huge chunk of my battery. Any ideas?
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I've had the same issues as the builds of CM have gotten higher in numbers. The ROM that's given me the longest life is the stoock Gingerbread rooted ROM. I switched back to CM because oof the Text MMS & them always being Slideshow issues as well as no ability to stoop the phone from vibrating when I'm on a call. Same issue with CM too actually.
I'm bumping this because I feel your pain.

you can fix that in call settings you know!

Are you running CM7? If you are, open up spare parts and look at the battery information under Partial Wake. See if there's something tying up the system.

There are a few things listed but I dont think its anything that would eat a whole lot of battery. Should I be looking for something in specific?

Anything that's more than a sliver is eating the battery and keeping your phone from sleeping.

I'm getting 24 plus hours on glite which is aosp also. Maybe the battery is finally giving up the ghost. They do have a finite amount if charge cycles. If nothing else has changed and all things being equal to your 12 hour charge cycles maybe you could try a different battery.

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.

[Q] Warming up?

So warm up check is something you can do the moment you get the phone (or at least it was like this with the Sensation).
Can someone that has already received the phone comment if the phone has a warm up problem while playing games or web-browsing etc?
(I know most of the phones warm up, the question is if it's fine or if it's becoming an oven like the early versions of the Sensation)

Been toying with it for about an hour now, battery just about to die so I can charge properly. No heating issues what so ever. It is as cool as ice tbh. I've played Glowball a bit and the screen has obviously been on for an hour now, 6% battery left, started with 27. Wifi on, data on, heavy game on. It does NOT heat up and Glowball runs perfectly smooth for me. I will be doing more tests in a day or 2.
Sent from my HTC One X using XDA

djolebih said:
Been toying with it for about an hour now, battery just about to die so I can charge properly. No heating issues what so ever. It is as cool as ice tbh. I've played Glowball a bit and the screen has obviously been on for an hour now, 6% battery left, started with 27. Wifi on, data on, heavy game on. It does NOT heat up and Glowball runs perfectly smooth for me. I will be doing more tests in a day or 2.
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
thanks for confirming glowball
can't wait for your full hands on

Thank you! Waiting for more comments

Phone:=HTC One X
Frontpage:=28,1°C
Shadowgun:=37,4°C
Shadowgun + charger:=40,9°C
Got this from a dutch review
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[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