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
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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.
Related
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.
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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
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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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.
Click to expand...
Click to collapse
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
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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.
Has anyone else had this issue of a huge battery drop when they restart their phone?
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It has only happened to me when I restart because of the phone freezing. Im running an ICS rom.
crzchn said:
Has anyone else had this issue of a huge battery drop when they restart their phone?
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Click to expand...
Click to collapse
It happens every now and then. What did you last change on your phone before the battery drop?
I just had one a couple days ago when switching to Calkulin's 1.1 ICS...after that drop, I recharged that night and the next day got 13 hrs or so with 54% battery still remaining. I think that, if you change your rom and then the drop happens after your next reboot, it just means that the original battery percentage was off and it's now corrected...
In short, I think it's nothing to worry about unless it's happening frequently.
my phone is stock and has been for quite some time. I like to power down sometimes to save battery or to not be distracted.
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OP this seems to be a known issue... I asked a question along the same lines a couple of weeks ago, and had a quite a few responses. Here ya go:
http://forum.xda-developers.com/showthread.php?t=1520830
The only time this ever happened to me was when my phone would reboot on its own due to a system crash but when I would reboot it again manually the battery stats would be back to what they were maybe 1-2% less.
It happens sometimes. I believe it has something to do with the Maxim fuel gauge chip in SGS2 phones. Sometimes reboots throws the battery stats off, but your phone doesn't actually lose that much charge. I've actually seen my battery % climb after a reboot. Wiping battery stats usually fixes the issue, as does charging to full of course.
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..
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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
Brand new stock phone...is this normal?
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Anyone ??.
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I like just got mine yesterday, sane thing happend, just keep using it, it helps battery needs to charge a few times
Sent from my Galaxy S3
After updating to jellybean, it's a bit better but still not ver y good.
anything I can do to fix the below?
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Don't you WANT a higher "system" usage than anything else? That means apps aren't sucking much battery.
I mean, if everything else is using so little battery (WiFi, screen, apps) what is left for the remaining percentage besides the system?
Dalmus said:
Don't you WANT a higher "system" usage than anything else? That means apps aren't sucking much battery.
I mean, if everything else is using so little battery (WiFi, screen, apps) what is left for the remaining percentage besides the system?
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Not really.
I had this happen yesterday. It wasn't that the others were using so little power. It was that the power used by everything else was dwarfed by the power used by Android System. In just under two hours my phone had dropped to 85%. When I looked I saw that Android System had used 45% of that. The phone was not sleeping even when the screen was off. I could also see that the Stay Awake time of Android system was nearly 100% of the time I had been on battery. Something in the Android System was stuck in a wake lock.
I tried to determine what the process was that was hung up but I was unable to do so.
I rebooted the phone and the wake lock went away.