Initially, I was very surprised and pleased by the battery life of this phone. I charged it on Saturday, and my usage since then took it down to about 73% this morning. 32 hours of use and 27% battery drain? I'll take that!
But something weird happened today. About midway through the day, the battery just started to crater. Worse yet, charging didn't do anything! The charging indicator animated, but battery life was still falling precipitously. I used it constantly on the train this morning, so I get why it was at 58% by the time I got to work, but then from 8am to about 2pm, it went down to 30%. Then from 2pm to 3pm while it was "charging", it went down to 18%.
Of course I googled the hell out of this, and came across this thread
And rebooting the phone magically stopped the battery drain, and allowed it to start charging again. So I guess our SGSII's are just like the international ones in that regard. Apparently some ROMs have fixed this, but we're still a little new to benefit from that approach. So, just a heads up: if your battery chart just starts falling into the floor, reboot and all will be well.
Note: this also explains the "Android OS" entry showing up at the top of your battery charts. I was shocked when 2 hours of display only accounted for 22% of my battery usage, while Android OS was 68%. Apparently the suspend mode goes insane sometimes and the process of attempting and failing to sleep the phone sucks the battery dry. I'd say that's pretty ironic, myself.
This happened to me also. I was not even touching my phone while working today and it beeped saying 50% I'm like wtf? So I let it sit still working and it beeped saying it needs to be charged. Crazy but I sure do hope this helps and is fixed soon.
Sent from my hand crippling Epic 4g Touch
happened 2 me couple times, i thought some app was keeping my phone from going to sleep. so i tried spare parts, spare parts doesnt work on stock gingerbread roms on samsung... so i cudnt figure out wat was going wrong... because lets say my battery was at 80%, after i reboot, it would be at 55%, just with a reboot...
i figured something was going wrong in the background, and the battery stats are not reported correctly, your REAL battery percentage shows right when you reboot...
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after i rooted the phone, THIS FREAKING EXACT PROBLEM made me do a factory reset on my phone, which put my phone in a boot loop... after waiting 16+ hours for a stock kernal to come out, i had to brick my device on purpose (so sprint could not even turn it on), and dey gave me a new SGSII... if i didn't brick it, they would have known it was rooted, due to the international splash screen...
trifthen said:
Initially, I was very surprised and pleased by the battery life of this phone. I charged it on Saturday, and my usage since then took it down to about 73% this morning. 32 hours of use and 27% battery drain? I'll take that!
But something weird happened today. About midway through the day, the battery just started to crater. Worse yet, charging didn't do anything! The charging indicator animated, but battery life was still falling precipitously. I used it constantly on the train this morning, so I get why it was at 58% by the time I got to work, but then from 8am to about 2pm, it went down to 30%. Then from 2pm to 3pm while it was "charging", it went down to 18%.
Of course I googled the hell out of this, and came across this thread
And rebooting the phone magically stopped the battery drain, and allowed it to start charging again. So I guess our SGSII's are just like the international ones in that regard. Apparently some ROMs have fixed this, but we're still a little new to benefit from that approach. So, just a heads up: if your battery chart just starts falling into the floor, reboot and all will be well.
Note: this also explains the "Android OS" entry showing up at the top of your battery charts. I was shocked when 2 hours of display only accounted for 22% of my battery usage, while Android OS was 68%. Apparently the suspend mode goes insane sometimes and the process of attempting and failing to sleep the phone sucks the battery dry. I'd say that's pretty ironic, myself.
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Click to collapse
Had you installed anything that could have caused this?
Mine was plugged in all night and said 100% then froze this am and dropped to 10% after reboot
Sent from my SPH-D710 using XDA App
i was having the same issue at work eariler today
chrisnosleep said:
Had you installed anything that could have caused this?
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No. I haven't installed anything since yesterday, when it was (supposedly) sipping the battery. It just started going nuts this afternoon. That's why I started looking and found that bug thread for the international SGSII. Apparently there was also a bug in 2.3.3 that would cause some widgets to suck the battery dry within hours, while idle and even in airplane mode. So I guess they're moving in the right direction.
I had a weird issue just now. Battery was at 26 percent. Did a reboot by holding the power button down for 8 seconds or whatever it is. When it booted back up about 30 seconds later i had 10 percent battery.
Sent from my SPH-D710 using XDA App
Today is my first day giving this phone a while, and I've been awestruck by the battery life.
Screen on for a large chunk of the past 12 hours that I've owned it, and I'm still showing about 50 percent. I imagine a battery anticipating 4G usage but me having it turned off all the time gives the phone a real edge, lifewise.
Not looking forward to it cratering like you guys have seen.
HOW CAN YOU GET THIS LIFE AND I CANT?????
I hard reset and started over for everything
Should I take it to sprint store?
like it was some what pointed out alot may be due to the charger....i kept my epic 4g charger and have been using that
imtjnotu said:
like it was some what pointed out alot may be due to the charger....i kept my epic 4g charger and have been using that
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I kept my htc evo one, after hearing about screen sensitivity issues and now this.
I got 23 hours with some heavy use on the first charge. It should only get better with the new kernels.
Transmission sent from a Galaxy S II.
so this is 4 out of 4 samsung devices that do this. both galaxy tablets - 7 and 10.1, droid charge and now this. none of my other android tablets or phones do this. the battery just drops with nothing being used. at -2ma usage it goes from 60% to 20% in seconds or from a reboot.
madsquabbles said:
so this is 4 out of 4 samsung devices that do this. both galaxy tablets - 7 and 10.1, droid charge and now this. none of my other android tablets or phones do this. the battery just drops with nothing being used. at -2ma usage it goes from 60% to 20% in seconds or from a reboot.
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Click to collapse
That may be the case, but I know from my Droid Eris, that bugs just happen. It had the infamous "Time without a signal" bug that used like half the battery life per charge. It basically had to be ROMed to work right. And that bug was there for over a year.
It's just sad the phone makers are being so sloppy. It makes Android seem like a POS, when it's really their fault.
Sent from my SPH-D710 using xda premium
Is it normal to lose 27% charge with jjust 40 minutes of screen on time? Phone has been off the charger for maybe 2 hours. Im not getting anywhere near the claims of some people...
Sent from my SPH-D710 using XDA App
Thanks guys for this thread, My first day I went out and had the phone and installed everything and got root and did titanium backup from my EVO 3D, and played some third blade, and got great battery life, but then yesturday went to work and it just tanked 5 hours and down 50% i was shocked, going to pull the battery if that happens to correct that.
This really disappoints me to see the 'Android OS' bug hasn't been fixed by Samsung despite the issue being reported this Spring when the international SGS2 launched. If I remember correctly it's due to the phone not going into 'deep sleep' after it's been unplugged from the charger. Android OS will be listed in the battery stats as the top consumer of battery.. the workaround is to reboot the phone after pulling it off of the charger in the morning.
I hope Samsung stays true to its word and provides steady firmware updates for their recent devices.. NOT to introduce new features but to fix some of these glaring issues (this one first and foremost)
ker0zene said:
Android OS will be listed in the battery stats as the top consumer of battery.. the workaround is to reboot the phone after pulling it off of the charger in the morning.
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I'll have to try that. I know rebooting after the system goes nuts stops the drain, but I didn't realize it wasn't sleeping after being charged. I'll report back.
I experience weird battery draining periods throughout the day as well. I think I'll just try to clear my battery stats later.
Last night my phone was down to like 5% so I plugged it into the charger and kept using it. It was plugged in for maybe 10 minutes when I got another bettery warning that my device was at 14% (the plug had come out). Since I was almost done, I decided to leave it unplugged since the plug gets in the way anyway. Shortly thereafter, I think the Volume+ app caused my phone to crash. It just turned off. When I turned it back on, my battery was reporting 39%! I wondered if it was a fluke, so to test, I switched to 4G from WiFi on, listened to music, and continued to use my device to see if I did indeed have more time with it. It went for another 40 minutes or so before the battery was back down to 5% and I plugged it back in and went to bed.
What gives? I feel like my battery life is exceptionally awful, but I thought I was experiencing the Android OS awake thing, since my awake times do seem to be pretty high, like 50% of my time on battery even though the screen is probably on for less than 25% of my time on battery and I only have google apps set to sync in the background. Last night's mysterious battery increase now leads me to think differently though.
Are my battery stats out of whack? I'm not rooted yet so I can't reset them that I know of. I am planning to tackle it this weekend, though. I was waiting to make sure the phone doesn't have any issues so I didn't have to go through relocking it to return it.
Attempting to attach a screen shot.
Normal Android behavior. I've seen it on every device I've had since the G1
The battery and the OS become mismatched if you restart while charging. The OS will report a "faster drain" when it reality itsvjust trying to match back up with the battery.
Sent from my Galaxy Nexus
This seem to have happened to some other Samsung devices (like the GSII) but I don't think it has been brought up in the GN forum (my bad if my thread search was poorly done and someone had talked about it before).
So I was using my GN a few hours ago, doing some messaging and whatsapp. Then I left it to sleep. Just now when I pressed the wake button, it didn't turn back on and I thought it was a sleep of death. I did the battery pull trick and turn it back on only to discover that its battery had been drained from around 55% to 0% in no time (see the attachment screenshot). It really freaks me out and I'm wondering what's wrong with my GN - is it a software glitch or a sign that some hardware is gonna fail?
Same thing happened to me just now. Dropped from 62% to 0% (zero percent) in no time!
Screen flickered a little and then - POOF - it's gone... Pulling the battery and reinstalling didn't help; looks like it's really at 0%
What could be causing it?
ABC
I also experienced the same thing about a week ago, battery went from about 40% to 0% almost instantly. I plugged it into the charger while the phone was off and started it after about 30 minutes . When it booted the battery was 55%.
I haven't experienced it since.
Hey guys, so for the past few weeks my G3 has been rebooting randomly, at first it was just once or twice a day. But now it's at the point that I can't use my phone anymore, it's CONSTANTLY rebooting. People suggested a battery issue, so I've changed my battery but the issue came back a week later. These reboots started around the time I flashed a thermal mod provided on XDA forums but I've flashed back to stock countless times, I've performed hard resets, factory resets and changing my charger but nothing seems to work.
I've also noticed a new issue today, my phone will show 54% battery life, then suddenly die. When I turn it back on it'll show 3%. If I charge it, it'll go from 3% to 100% in less than an hour which is quite impossible. But after a reboot, the battery will show something around 5-10% again. I really have no clue what todo or what the issue can be. Please help!
I'm currentled running Android 4.0.4 stock, non-rooted and barely any apps or bloatware (Just whatsapp, messenger and snapchat)
I have had the same problem as yours, i got a new battery and all good since. Maby you got a new faulty battery. Is it oem?
Exactly the same issue but I've tried a new battery yet
I ve got same problem then i replaced battery and since then it happened like 3 times (i was pretty mad!) but since then it works great...
Rayyan777 said:
Hey guys, so for the past few weeks my G3 has been rebooting randomly, at first it was just once or twice a day. But now it's at the point that I can't use my phone anymore, it's CONSTANTLY rebooting. People suggested a battery issue, so I've changed my battery but the issue came back a week later. These reboots started around the time I flashed a thermal mod provided on XDA forums but I've flashed back to stock countless times, I've performed hard resets, factory resets and changing my charger but nothing seems to work.
I've also noticed a new issue today, my phone will show 54% battery life, then suddenly die. When I turn it back on it'll show 3%. If I charge it, it'll go from 3% to 100% in less than an hour which is quite impossible. But after a reboot, the battery will show something around 5-10% again. I really have no clue what todo or what the issue can be. Please help!
I'm currentled running Android 4.0.4 stock, non-rooted and barely any apps or bloatware (Just whatsapp, messenger and snapchat)
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Click to collapse
Try caliberating your battery. And try changing your battery.
Battery changed and looks a lot better