Is this normal. I did try and do a search in my defence.
Yes. It is like that by design. It stops charging at around 95-98%. Its to prevent you from overcharging the battery.
Sent from my Nexus S using XDA App
This is a known issue. You can try and reset battery stats in cwm when your battery is charged and/or emptied. It works for some and not for others. I haven't noticed my battery lasting any less when my battery doesn't "charge" past 97%
There have been some discussion on this. I get about 97% myself. From what I've read you may get full charge if you let it drain all the way. I don't do that myself. Very happy with battery life as is.
I used to get 100% before I switched to the Vegan rom.
Sent from my G-Tablet running Vega-Nb5.1
Mrhorology said:
Is this normal. I did try and do a search in my defence.
Click to expand...
Click to collapse
Either let it drain until it shuts off a few times and then charge it all the way up or if that doesn't work, use CWM to delete the battery stats when it's at 95% (full, with a GREEN light - not charging, with a red light) and then let it drain until it shuts off on it's own.
I did this a long time ago (delete the stats) and it's been perfect since. Charges to 100% and does indeed show battery at almost empty before it shuts off.
Good Luck.
Still no go here but it can get tom 96%... lol
I am sitting a 98% with VEGAn.
I am now having an issue where u can use the device, then I turn it off, and
turn it on the next morning and see about 5 to 10% of my battery was drained.
Confirmed Fix
Confirmed fix for me on Vegan 5.1. Letting battery drain down to zero and shutoff the tablet... reached 100% on next charge. Now the indicator charges to 100% every time.
tried this and still no luck . still get to 95-6% bugger
Vegan here..this is how I fixed it:
1) Drain it till it shuts off, try restarting it a few time to make sure its dead.
2) Once dead, plug it in, boot into clockworkx, and reset battery status (do this quickly)
3) restart, and leave plugged in idling till fully charged
4) use and enjoy a accurate battery level!!
-Red
Mrhorology said:
I am now having an issue where u can use the device, then I turn it off, and
turn it on the next morning and see about 5 to 10% of my battery was drained.
Click to expand...
Click to collapse
You have to remember that in order to install some apps out there, you have to give them permission to use the internet and to interact with your device autonomously. I have found a few apps that were pulling my tablet out of sleep mode and turning on the wireless to download ads or other updates, and that (along with the length of time to shut back down) was affecting my battery life.
I would say to go back and review what you've installed, and to also check your screen timeout settings. Just doing that saved me quite a bit of overnight battery loss.
BigJohn
Related
This works in VegaN - YMMV...
Settings -> Wireless settings -> then hit the menu button, and choose "Advanced", then select "WiFi Sleep policy" (It was set to NEVER!)
Spare parts showed (via 'Spare Parts' app) that the WiFi was on 100% of the time - even while sleeping..
I'll give this a try tonight when I go to sleep.
I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.
insight3fl said:
I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.
Click to expand...
Click to collapse
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...
30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH
DudeInMyrtleBeach said:
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...
Click to expand...
Click to collapse
Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.
insight3fl said:
Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.
Click to expand...
Click to collapse
I leave it in sleep mode because its my alarm clock. I also now leave it plugged in.
I've tried draining the battery then resetting stats in clockwork. If tried about every variation of doing that I can think of short of waiving a dead chicken over it.
sent from my g-tablet using tapatalk
I've left mine on and unplugged(it went to sleep) for 3 or 4 days and come back with battery still. 30% overnight seems odd.
skeeterpro said:
30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH
Click to expand...
Click to collapse
I think you might be right, because I used Cyanogen Mod for a month and a half and had no issue like this. Now I am using TNT Lite 4.2.4 and I am still having no battery life issue.
Also I have never been not able to charge my Tab to 100%. So I may suggest that you guys try switching to cyanogen mod or tnt lite.
so why exactly am i losing battery life on a reboot. its happening on every rom ive used so far.
I think its because your battery is not properly calibrated with the rom. Are you bump charging each new rom you put on and wiping the battery stats?
This happens to me. I am stock currently, but I have been through two phones and they both lost 5 - 10% on reboot.
It's normal for the phone, it takes a bit to "power" up the phone. Don't stress out that much over it. The battery % isn't 100% accurate anyway.
I'm losing ~10% on each reboot too. Its definitely not just from the reboot and I don't think its accurate. Yesterday, as an example, I was at 43%, rebooted and came up at 32%. Then my phone sat 32% forever, just flat lined in the battery stats for hours. It finally started reasonably dropping again hours and hours later as if the battery level had finally caught up with what was being reported.
Have you ever bump charged and battery wipe stats before?
Cuz mmy battery doesn't drop like that.
I don't think I lose a full 10%, but I definitely notice a significant, if not excessive battery drop when rebooting. It seems unlikely that the battery could have discharged that much, so it's probably a reporting issue. Not something that really bothers me, but just pointing out that I noticed it as well.
IDroidThere4Iam said:
I'm losing ~10% on each reboot too. Its definitely not just from the reboot and I don't think its accurate. Yesterday, as an example, I was at 43%, rebooted and came up at 32%. Then my phone sat 32% forever, just flat lined in the battery stats for hours. It finally started reasonably dropping again hours and hours later as if the battery level had finally caught up with what was being reported.
Click to expand...
Click to collapse
This was similar to what I experience. More evidence that it is a mostly harmless reporting error. The reporting "corrects" itself once the phone is booted. Interesting behavior, but harmless.
Download Battery Calibration from the Market.
Sent from my ADR6400L using XDA Premium App
Your battery gague isn't telling you the truth.
I don't even get a 100% charge. It sits at 97 for like 3 hours and then drops. Reboot usually only takes <5 for me though. I'm thinking ROM issue.
Sent from my robot vacuum smartphone using black magic and goat blood
funkybside said:
Your battery gague isn't telling you the truth.
Click to expand...
Click to collapse
This really explains why you drop rapidly after unplugging your pone from charging to "100%". I believe the OP is referring to a step function-like decrease in battery level between reboots. That is what I'm referring to anyways. That link does have some interesting info though.
I've been having the same issue. Reboot sometimes drops the battery by 5%, and the battery gauge seems to get stuck after that. I've also noticed that sometimes if I reboot while it's charging, the % will jump something ridiculous like 20%. Just now, it was at 45% while charging, I rebooted, and now it's at 57%.
This has been happening on both BAMF and CM7, though I've always been using Imoseyon's kernels.
Same problem here. Bump charge and battery stat wipe is the fix but it's definitely a pain. Especially, since I am flashing a new rom everyday.
to bump charge does my phone have to be off or when it reaches 100 unplug and plug a few times? will that do. i hate having to shut the phone off especially for a number of hours.
Bump charge> charge the phone on till light turns green. > turn phone off> charge phone until light turns green> unplug and reconnect several times> boot into recovery> wipe battery stats. > done. Use the phone all day and let it die on that charge. Then charge over night turned on. And you are now calibrated.
magicriggs said:
Bump charge> charge the phone on till light turns green. > turn phone off> charge phone until light turns green> unplug and reconnect several times> boot into recovery> wipe battery stats. > done. Use the phone all day and let it die on that charge. Then charge over night turned on. And you are now calibrated.
Click to expand...
Click to collapse
Damnit, I always forget that last step
qman66 said:
so why exactly am i losing battery life on a reboot. its happening on every rom ive used so far.
Click to expand...
Click to collapse
because rebooting entails the re-starting of operating system, services, background apps, internet connectivity, and initial data sync. it's just the nature of restarting an operating system.
lect1984 said:
because rebooting entails the re-starting of operating system, services, background apps, internet connectivity, and initial data sync. it's just the nature of restarting an operating system.
Click to expand...
Click to collapse
I think the question was meant to be something like, "why do I lose 5-10% of my battery after a reboot?" Of course rebooting using a little power, but that's not the issue here.
johnclevenger said:
I think the question was meant to be something like, "why do I lose 5-10% of my battery after a reboot?" Of course rebooting using a little power, but that's not the issue here.
Click to expand...
Click to collapse
Because the battery gauge isn't reading it right. Solution. Bump charge and battery wipe stats.
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
sambaman009 said:
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
Click to expand...
Click to collapse
no problems here, but apparently half the people in the battery threads have issues with battery life.
hmmm, well I just want to get this right because it gets annoying when it says 100% battery then goes down in about 20 minutes
I've had issues with battery life indication on my Omnia 7.
I can have it showing 70%, then it would suddenly drop to showing around 10%. Then by turning off and on several times it will sort itself out and show the correct amount.
This has only happened once or twice mind...
No problem here on my HTC 7 pro. Though I did calibrate one battery and not the spare, both perform the same.
I have no problems either on my omnia 7
follow this::
http://forum.xda-developers.com/showthread.php?p=15338429#
No issues on my Focus. Maybe this is a device specific issue?
sambaman009 said:
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
Click to expand...
Click to collapse
No problem with my trophy but a good practice to keep you battery in shape is to start charge at 15-20% (dont leave it until is dead is bad for the battery) and dont charge it to 100% ...stop charging at 90-95% ...
That is what i do with all my mobile devices and rarely i have probs with my batterys.
hello guys, well, i just installed the newest Virtuous unity ROM and after 2 hours it went from 94% to 38% with constant use (surfing in the web, downloading and installing apps from the newest market, inboxing in facebook,) all of this with WIFI and without turning the screen off. it was constantly, also i was at 85% brightness screen....
what do you think??? is that normal or not??
with your brightness that high its very likely.
cableguychad said:
with your brightness that high its very likely.
Click to expand...
Click to collapse
well what brightness percent is good for you?
Yeah, I'm around 25-30% and that even drains it enough.
...and the fact that you used it constantly for 2 hours donwloading and stuff adds to it. go into settings --> about --> battery use/usage and whats teh biggest thing there. that'll tell you probably that your screen is killing your battery
also, right after flashing roms, your battery is not calibrated properly so thats' probably a factor. it takes a couple days to settle in properly
You probably need to reset your battery stats. Charge to %100, leave it plugged in, boot into recovery, reset battery stats under advanced options, and then reboot. Leave it plugged up long enough for the battery to realize it is fully charged or it will just shut down thinking it it dead. Once it shows charged again(usually takes about 1 minute) then remove from power supply and use it until it is dead and recharge. This will reset all battery stats.
Hey guys, is anyone else here experiencing the battery level going up when you restart the phone?
If my battery is at 70%, and I restart it, it'll be at 76% or even higher and remain that way for quite a while (remains a consistantly drain, not a single major drain in a short period of time)
This is something that's been happening since I was stock (Retail device from T-mobile store on launch date)
Here's some info:
-S-OFF using Revolutionary, and then later upgraded to 4.0.0.9 via terminal emulator
-Rooted stock (no rom uploaded)
-1900 mha Anker battery
-Battery stats wiped
-UncleSpoon's battery icon mod
even after all that, it'll still do it. So is it just me, or is everyone else experiencing this?
Yes, you have to re-calibrate your battery stats.
No, the CWM menu option to wipe battery stats is not right, for some reason.
Go get this free app: Battery Calibration
Charge your battery all the way up and let it sit charging for a few minutes after you see the light turn green (while turned on and booted up)
After it's been green for a few minutes, open this app and click the big "calibrate" button, and then un-plug it from the charger.
Let it run down until it turns itself off, without plugging it in. This means no usb to the computer, either - and don't turn it off manually.
After it turns itself off from lack of juice, plug it in (wait about 30 seconds) and then turn it back on. If you turn it on too quickly weird things may happen, depends on how depleted the battery is. (usually there is 1 or 2 % left so it's ok)
Leave it plugged in and turned on until fully charged. After that, you can feel free to play with it, but you should run it up and down a few more times without charging in-between. The first one is critical to do this way, though, or you are just wasting your time.
You MUST be rooted, or it will not work. (said for others who may need this info)
Tip to drain battery - screen brightness all the way up, screen to not turn off, and turn the flashlight app on. Leave it sit for a few hours.
Tip to charge quickly while on: Turn all wireless and data communication off, tap power button to turn screen off (keeping phone on)
Good luck, it'll solve the problem though.
I used battery calibration to wipe my battery stats (I did it in recovery on my 3G Slide, so I'm aware of that alternative method)..
I've let my stock battery get to 0% but that was pre-root.
After reading all the charging problems with the CWM, I was a bit afraid to attempt the 0% drain on the new Anker.
Are you running 4.0.0.9, and does it charge fine? I'd hate to deplete an Anker since I have no external battery charger.
RazoE said:
I used battery calibration to wipe my battery stats (I did it in recovery on my 3G Slide, so I'm aware of that alternative method)..
I've let my stock battery get to 0% but that was pre-root.
After reading all the charging problems with the CWM, I was a bit afraid to attempt the 0% drain on the new Anker.
Are you running 4.0.0.9, and does it charge fine? I'd hate to deplete an Anker since I have no external battery charger.
Click to expand...
Click to collapse
Removing the stats only doesn't calibrate the battery, check the calibration guide in my sig, for a correct method that works for any android device.
Read this too
http://forum.xda-developers.com/showthread.php?t=1168036
Ace42 said:
Removing the stats only doesn't calibrate the battery, check the calibration guide in my sig, for a correct method that works for any android device.
Read this too
http://forum.xda-developers.com/showthread.php?t=1168036
Click to expand...
Click to collapse
Seriously, that's a good read.
I agree.
What I recommended was better then just wiping battery stats with CWM, but nowhere near as good as what Ace42 linked us up to.
I'd recommend reading those threads and doing that instead, I am more then happy to be corrected and shown a better way.
(FYI - I depleted a stock battery completely, both in CWM 4.0.0.8 and 4.0.0.9 to test the charging issue. You will always be able to charge it in the phone, even if you bring it completely to dead.
The idea that you can't is a myth, and was a concern until it was proven not to be true.)