Hey there,
hope you guys can help me out on this:
For about 3 weeks, my battery is going crazy. The statistics won't reset even after a 100% charge (see picture). Battery seems to drain way too fast. Sometimes, charging will get stuck at 66% or something (unplugging + plug back in doesn't help). Or it will jump from 89% to 100%, and will remain at 100% when the charger is unplugged, but jump back to 89% after a reboot.
Long story short: I think I need to reset something here. But I'm not entirely sure what else to try. I've erased the batterystats.bin using the Battery Calibration app multiple times. I've tried to do a battery wipe in recovery mode, but my CWM doesn't show that option. I've done several 100% to 0% to 100% complete charge cycles. Even bought a new battery. Without any effect. Kind of clueless
Running Cyanogen 10.2 on Galaxy S2
Glad for any help!! Thanks!
Max
Related
No matter how long my g tablet is plugged in,
it does not charged until the battery meter says 100%.
It always get charged upto 96%.
Is there anyway to fix this problem?
Is it something that can be fixed by clearing batterystat.bin?
If that so, can I do that using adb? Thank you.
khunny,
This is pretty common with the G-Tablets.
You can run it down all the way and then go into CWM and tell it to reset the battery stats.
But often as not that doesn't change much.
My personal advice (I have one that often does the same) is just ignore it. If it's 96%
you've got no problem and at less than 10% you better be thinking "charge."
Rev
Mine only charges up to 96% as well. Gonna try to reset it in CWM after it drains. Hopefully it works, cuz while having it only go to 96% isn't a huge deal its something I would like t be able to fix.
search is your friend
It is normal. Gtab treats 8.3V as 96%. In theory, 2cell li-ion battery 100% of charge is 8.4V. But, such battery does not like to be overcharged (it will shortened battery life).
mine did charge to 100 percent before installing vegan 5.1 supplement? Now it charges to 98 no matter how long i leave it plugged in? There has to be some way to alter the battyer stats to show 100 percent if it is??
Mine finally got to 100%
I had this tablet only for a week or so. I have installed Vegan 5.1.1. I noticed the battery only charged to 95% or 96%. I have drain the battery all the way, and then "Reset Battery Status" in CWM. But, it did not work the 1st time. Then, I drained it again. After the tablet shuts off automatically, I would push the power button to turn it on a few times to drain it more. Then, I reset the battery status in CWM, AND, I "Fixed File Permissions" right after the battery status reset. Then, reboot the device, and it reached 100%
Note: I drained the battery at work, tried to turned it back on about 3 times after it shuts itself off. After I got home, a few hours later, I turned it back on one more time, and the battery showed 2% and stayed on for quite a while. Not sure why that is. Hope this helps.
New gTablet, just use only 1 day, the charging allway in 96%!!! never go upto 100%, is this normal?
Pls: i see 97% about 5 minute ago, but now back to 96%,,,,,,
thanks
Yes, it's normal, everybody has inaccurate battery readings on Gtablets.
To try to fix it, you can drain the battery all the way down, then turn it on a couple times ot make sure that it's completely drained. Then, plug in the charger, turn it on in recovery mode (assuming that you have CWM installed) then wipe the battery stats. Reboot, and charge it all the way back up. it may charge to 100%.
Mine has a different issue, it will charge to 100%, then it will stay there for an extended period of time. 3 hours later, it might still be on 100%, but I know that it's not. If I let it drain down, it will actually turn itself off around 13% - 15%, so my battery calibration is off by that much in the positive. The first time I wiped stats, it fixed it, but it's slowly crawling back up again.
thank . TJEvans, ithink i need to return back. so many problem with my gtablet.
I recently dropped my S2 into water for a few seconds and following a week of drying out I turned it on to find that everything is working fine. The only problem I have is that the phone thinks it is at 100% charge after being plugged in for a few seconds. On the first charge I left it plugged in whilst showing 100% and overnight it managed to charge fully so that the phone worked for a full day.
Today however, it reaches 100% (after a few seconds) and seems to stop charging any further. I can use the phone whilst it is plugged in but as soon as I unplug it shuts down due to no power.
Is there a way to reset the battery stats or fix this? I'm currently running 2.3.4 stock.
Thanks in advance,
Chris
Reset battery stats .
As you dont know the basics try Battery Calibration from the market .
jje
That requires root access... is there no way to address this without deviating from official firmware?
Try pull out the battery and put it in the hot water cupboard overnight (or blow dry it, but not too hot - it is a battery afterall), then try it again. Could be related to the calibration chip on the battery...
Battery calibration
It has been mentioned in several XDA forums that the SGS2 has a power supervisor chip that manages calibration automatically and doesn't need battery cycling.
You have probably sustained damage to your phone. It wont cost much to try a new battery though but it is a long shot.
Regards,
John.
I'm guessing it's a hardware fault with the charging circuit. I don't suppose anyone can recommend a good repair shop in the UK?
Hi, I am sorry I am using your thread to post a personal question.
I would recommend you to try a different battery though.
The problem I have is similar, but not the same.
When the phone sounds that it has full charged, I unpluged it and it immeadiately changes from 100% to 99% or 98%. After that it uncharges as normal.
What could be the reason?
I calibrated it with the battery calibrator. Also took out the battery after full charge and plug it back on. With no results.
What could I do?
almorsol said:
Hi, I am sorry I am using your thread to post a personal question.
I would recommend you to try a different battery though.
The problem I have is similar, but not the same.
When the phone sounds that it has full charged, I unpluged it and it immeadiately changes from 100% to 99% or 98%. After that it uncharges as normal.
What could be the reason?
I calibrated it with the battery calibrator. Also took out the battery after full charge and plug it back on. With no results.
What could I do?
You could have searched and read all the posts that say this is normal behaviour .
jje
Click to expand...
Click to collapse
For anyone who's interested, I've managed to fix the problem by doing a full factory reset. To do this I powered up the phone into recovery mode (start whilst holding power, home and volume up) and performed both factory reset and and cleared the cache. Now appears to working fine.
Thanks for all the suggestions.
Hi.
After flashing a new ROM I could only charge my battery to 64% overnight.
The battery discharged to 23% in about 3 hours.
I installed battery calibration, ran it. The battery then charged to 57%.
This number is now stable even if I reset the battery calibration in CMW.
I think that the problem is that the OS has the voltage settings wrong.
At 57% the battery calibration program says it reads 3825mV. The EVO 3D battery is rated at 3.8V.
So it should be in principle fully charged, right? So why does it read 57%?
(Google play information for the battery calibration program claims that 100% is 4.2V, can it be overcharged that much?)
Do I just need to wait for the phone to settle? Or do I need to somehow let it know that the battery is 3.8V?
Anyone know how to fix this?
Really? Nobody else had this problem?
I have no idea how to fix this.
After the battery is discarged, it charges back to the right voltage 3.8-3.9V but it will read a random % value.
The OS calibrated itself over the weekend to where it would think the battery discharged over 2 hours from full.
Using the battery calibration program while in the OS seems to do nothing.
But resetting the battery calibration in recovery (CWM), or flashing a ROM seems to reset the battery %.
However! It resets to read 64% at full, not 100%.
With a fresh reset like this, the battery lasted me about 7hours (with me playing music for maybe one hour of that.)
When charged overnight, the battery topped at 43% for some reason. (Battery voltage still read 3.9V).
I reset the calibration in recovery and it jumped back to 64%.
I tried two different ROMS. I tried reflashing my hboot. I tried several versions of CWM. Same results.
Any suggestions from anyone? Please?
Edit:
I tried switching the recovery from ClockworkMod to 4ext, but it seems that 4ext did not work on my phone.
I was not able to boot into the recovery menu.
Edit 2:
I tried two different batteries. And I put back the stock recovery. Still wrong % reading.
I don't really want to put the stock hbood back in. Won't that relock my phone?
i have a solution
ivantheredmenace said:
Really? Nobody else had this problem?
I have no idea how to fix this.
After the battery is discarged, it charges back to the right voltage 3.8-3.9V but it will read a random % value.
The OS calibrated itself over the weekend to where it would think the battery discharged over 2 hours from full.
Using the battery calibration program while in the OS seems to do nothing.
But resetting the battery calibration in recovery (CWM), or flashing a ROM seems to reset the battery %.
However! It resets to read 64% at full, not 100%.
With a fresh reset like this, the battery lasted me about 7hours (with me playing music for maybe one hour of that.)
When charged overnight, the battery topped at 43% for some reason. (Battery voltage still read 3.9V).
I reset the calibration in recovery and it jumped back to 64%.
I tried two different ROMS. I tried reflashing my hboot. I tried several versions of CWM. Same results.
Any suggestions from anyone? Please?
Edit:
I tried switching the recovery from ClockworkMod to 4ext, but it seems that 4ext did not work on my phone.
I was not able to boot into the recovery menu.
Edit 2:
I tried two different batteries. And I put back the stock recovery. Still wrong % reading.
I don't really want to put the stock hbood back in. Won't that relock my phone?
Click to expand...
Click to collapse
hi mate, i have an ISW12HT from AU KDDI just like you are and have same problem lf i flash custom rom like smooth criminal or CM 10.1.
finally i got the solution, just go to /system/bin , and swap/copy htcbatt file with htcbatt from stock rom AU KDDI
don't forget to change the permission to -rwxr-xr-x, then voilaaaa.... battery indicator back to normal again.
i hope that can help your problem...
sorry for my english
Hey everyone. I'm having an issue with the battery stats of my Acer Liquid Z500.
When I charge my phone, sometimes the battery stat freezes at some point, 35%, 28%, 45% for example, for some time. When the phone feels like it's discharging, the battery stats come down really fast, like 1% per 15 seconds, until it's off.
I've tried booting into recovery mode and checking if there's any option to wipe battery stats, but there's not.
I've tried factory resetting the phone but it doesn't work.
I was wondering if you guys could enlighten me about this issue. It's getting really annoying.
rogermachadostb said:
Hey everyone. I'm having an issue with the battery stats of my Acer Liquid Z500.
When I charge my phone, sometimes the battery stat freezes at some point, 35%, 28%, 45% for example, for some time. When the phone feels like it's discharging, the battery stats come down really fast, like 1% per 15 seconds, until it's off.
I've tried booting into recovery mode and checking if there's any option to wipe battery stats, but there's not.
I've tried factory resetting the phone but it doesn't work.
I was wondering if you guys could enlighten me about this issue. It's getting really annoying.
Click to expand...
Click to collapse
Had the same problem once on a different phone. What I did to solve this was quite simple: after battery percentage has frozen, I shut off my phone completely, so it can charge without interference. So just wait until the phone has charged completely. Another option would be to perform a simple reboot after the freeze.
If this doesn't work, maybe you have to re-adjust your battery by charging it to 100% and then let it discharge to 0% and then do a full charge afterwards.
orville87 said:
Had the same problem once on a different phone. What I did to solve this was quite simple: after battery percentage has frozen, I shut off my phone completely, so it can charge without interference. So just wait until the phone has charged completely. Another option would be to perform a simple reboot after the freeze.
If this doesn't work, maybe you have to re-adjust your battery by charging it to 100% and then let it discharge to 0% and then do a full charge afterwards.
Click to expand...
Click to collapse
Thank you so much! I'll try that.