Battery level sudden drop. - Eee Pad Transformer Q&A, Help & Troubleshooting

Something weird is happening to my battery. I'll be using the tablet at around 35% battery and the tab just shuts down and when i restart it with the charger plugged in, it shows 0% and when i restart and just unplug the charger, it goes back to 35%. it happened twice this morning. Any ideas?

catfishbilly said:
Something weird is happening to my battery. I'll be using the tablet at around 35% battery and the tab just shuts down and when i restart it with the charger plugged in, it shows 0% and when i restart and just unplug the charger, it goes back to 35%. it happened twice this morning. Any ideas?
Click to expand...
Click to collapse
Nothing?

Maybe the battery coming to the end of its life
Which ROM are you running / Recovery ?

*Detection* said:
Maybe the battery coming to the end of its life
Which ROM are you running / Recovery ?
Click to expand...
Click to collapse
i am using eos the last preview by timduru kat kernel and twrp 2.3 my tablet inst even up to one year old and i dont charge it over night so i dont think it is the battery.

Have you tried clearing Cache and Dalvik Cache in recovery ?
Sent from my Transformer TF101 using Tapatalk HD

Related

[Q] Roms and battery life - Unable to start phone

Hi,
I have recently tried out a few ROMs with my Nexus S to try to get better battery life. I tried CodeName Android and then figured I would try Slim ICS afterwards. I completely wiped everything and installed Slim ICS.
I have observed the following:
- Battery was ~40% when I installed Slim ICS
- I used it until the battery depleted
- Plugged phone into the wall charger
- Started the phone shortly afterwards (~25 minutes) and it says battery is 100% and then the phone randomly shut off
- Phone has been plugged into the wall charger and when I try to start it now sometimes it boots completely and then shuts off. Other times it just shuts off before it finishes booting up. The few times it does fully boot up, it says the battery is 100%
I've read through many postings about calibration but at this point I am not even able to fully turn on the phone even when its plugged into the wall.
Is this expected or is something else going on? I've never seen anything like this when I had the stock ICS. Why would erroneously report 100% but then not even let me fully turn on the phone? Thanks!
timetosave said:
Hi,
I have recently tried out a few ROMs with my Nexus S to try to get better battery life. I tried CodeName Android and then figured I would try Slim ICS afterwards. I completely wiped everything and installed Slim ICS.
I have observed the following:
- Battery was ~40% when I installed Slim ICS
- I used it until the battery depleted
- Plugged phone into the wall charger
- Started the phone shortly afterwards (~25 minutes) and it says battery is 100% and then the phone randomly shut off
- Phone has been plugged into the wall charger and when I try to start it now sometimes it boots completely and then shuts off. Other times it just shuts off before it finishes booting up. The few times it does fully boot up, it says the battery is 100%
I've read through many postings about calibration but at this point I am not even able to fully turn on the phone even when its plugged into the wall.
Is this expected or is something else going on? I've never seen anything like this when I had the stock ICS. Why would erroneously report 100% but then not even let me fully turn on the phone? Thanks!
Click to expand...
Click to collapse
Maybe a bad battery?
Sent from my Nexus S 4G using Xparent Cyan Tapatalk 2
Battery is fine. I ended up letting it charge a few hours and it now fully boots up and battery is almost fully charged now.
Whats strange is at times, when the battery was close to empty, when turned off and plugged into the wall, it showed the battery as being completely charged so I don't think it was charging. I had never observed this behavior with the stock ICS.
timetosave said:
Battery is fine. I ended up letting it charge a few hours and it now fully boots up and battery is almost fully charged now.
Whats strange is at times, when the battery was close to empty, when turned off and plugged into the wall, it showed the battery as being completely charged so I don't think it was charging. I had never observed this behavior with the stock ICS.
Click to expand...
Click to collapse
If it happens again I would suggest taking it to a sprint repair
Sent from my Nexus S 4G using Xparent Cyan Tapatalk 2
same problem
Even I have faced the same problem whenever I reboot keeping my pfone charging,
This is very normal,
just let the battery drain completely and next time charge it till 100% it will work perfectly,
It happens with me whenever I install new rom.
basically the battery indicator shows incorrect status also battery will drain very quickly later but once you finish installation just let your phone charge for 3 hours . Problem will get solved
saurabhkubadia said:
Even I have faced the same problem whenever I reboot keeping my pfone charging,
This is very normal,
just let the battery drain completely and next time charge it till 100% it will work perfectly,
It happens with me whenever I install new rom.
basically the battery indicator shows incorrect status also battery will drain very quickly later but once you finish installation just let your phone charge for 3 hours . Problem will get solved
Click to expand...
Click to collapse
Also, you could try clearing the battery stats in clockwork mod recovery
Sent from my Nexus S 4G using Xparent Cyan Tapatalk 2
Thanks. So it sounds like its more of a generic issue with ROMS in general as I never observed this before putting on a custom ROM.

Charging time

Hello, I have bought rooted htc sensation and am very upset with it's charging time, it takes about one hour to charge 10% of battery. Example today I started charging it at 7:05 when it had 49%of battery. Now it's 11:06 and battery shows 88%. I know it's not normal. Is there any way how to fix it, or maybe test my phone somehow? Should new battery solve this problem?
domukas00 said:
Hello, I have bought rooted htc sensation and am very upset with it's charging time, it takes about one hour to charge 10% of battery. Example today I started charging it at 7:05 when it had 49%of battery. Now it's 11:06 and battery shows 88%. I know it's not normal. Is there any way how to fix it, or maybe test my phone somehow? Should new battery solve this problem?
Click to expand...
Click to collapse
Try deleting battery stats in recovery, this can lead to misreading. Also, usually the battery is higher than the percentage shown, just reboot your phone and you'll see how much battery is left (one time it showed me 2% when I actually had 45%, but that's because I put my phone in a -20C freezer).
astar26 said:
Try deleting battery stats in recovery, this can lead to misreading. Also, usually the battery is higher than the percentage shown, just reboot your phone and you'll see how much battery is left (one time it showed me 2% when I actually had 45%, but that's because I put my phone in a -20C freezer).
Click to expand...
Click to collapse
Can I use any application for deleting battery stats (this phone is rooted)?
domukas00 said:
Can I use any application for deleting battery stats (this phone is rooted)?
Click to expand...
Click to collapse
Try the 'battery calibration' app on the play store, I believe it can do this. But keep in mind that the battery an lose it's calibration with time, and even if uncalibrated, it will last about the same (although the OS starts saving at 30%).
Battery calibration didn't helped. But I noticed strange thing:
My friend also has htc sensation and his battery fully charges in 4hours. I exchanged my battery with him and charging time is same! He fully charged my battery from 14% to 100% 4 hours and my phone still charges very slow. I started charge his battery from 44%, at first it was charging very fast, but after 4hours it charged only to 88%. I rebooted phone and then it showed 100%. Where is the problem? My phones charges very slow with any battery. I don't want to reboot it every time to show 100%
domukas00 said:
Hello, I have bought rooted htc sensation and am very upset with it's charging time, it takes about one hour to charge 10% of battery. Example today I started charging it at 7:05 when it had 49%of battery. Now it's 11:06 and battery shows 88%. I know it's not normal. Is there any way how to fix it, or maybe test my phone somehow? Should new battery solve this problem?
Click to expand...
Click to collapse
Change ur charger ( wire and adapter ) as I also faced that on by note 2(charger only 10% in 1 h) and when I changed by charger it started to charge like hell , then I realised that it was the charger fault(even if it original charger) and not phone
Sent from my HTC Sensation using Tapatalk 4
domukas00 said:
Battery calibration didn't helped. But I noticed strange thing:
My friend also has htc sensation and his battery fully charges in 4hours. I exchanged my battery with him and charging time is same! He fully charged my battery from 14% to 100% 4 hours and my phone still charges very slow. I started charge his battery from 44%, at first it was charging very fast, but after 4hours it charged only to 88%. I rebooted phone and then it showed 100%. Where is the problem? My phones charges very slow with any battery. I don't want to reboot it every time to show 100%
Click to expand...
Click to collapse
What ROM do you have? Is it stock or other? I need about 2:30 to be filled in A1-7 4.3 ROM ... Have you tried the USB and what are the results? Maybe make some other rom, so if you do not work fast carge, change the charger and battery
Harbir said:
Change ur charger ( wire and adapter ) as I also faced that on by note 2(charger only 10% in 1 h) and when I changed by charger it started to charge like hell , then I realised that it was the charger fault(even if it original charger) and not phone
Sent from my HTC Sensation using Tapatalk 4
Click to expand...
Click to collapse
bobrda said:
What ROM do you have? Is it stock or other? I need about 2:30 to be filled in A1-7 4.3 ROM ... Have you tried the USB and what are the results? Maybe make some other rom, so if you do not work fast carge, change the charger and battery
Click to expand...
Click to collapse
I have brother's samsung charger and 2htc wires+adapters and there is no difference between them while charging. I have 4.0.3 android rom and it's rooted (has supersu app)
domukas00 said:
I have brother's samsung charger and 2htc wires+adapters and there is no difference between them while charging. I have 4.0.3 android rom and it's rooted (has supersu app)
Click to expand...
Click to collapse
Bro go to recovery and change from there see if it chargers well there (this is to see that is it a ROM problem ) say in recovery while charging
Sent from my HTC Sensation using Tapatalk 4
Maybe there is no recovery, so can not check ...
@ domukas00 go to this link and download 4kt recovery, and try what you suggested by Habiri
Try here http://forum.xda-developers.com/showthread.php?t=1377759
I got the same "problem" but only with custom roms, stock rom doesnt have this problem for me.
But after a reboot the battery shows its actual percentage.
Harbir said:
Bro go to recovery and change from there see if it chargers well there (this is to see that is it a ROM problem ) say in recovery while charging
Sent from my HTC Sensation using Tapatalk 4
Click to expand...
Click to collapse
bobrda said:
Maybe there is no recovery, so can not check ...
@ domukas00 go to this link and download 4kt recovery, and try what you suggested by Habiri
Try here http://forum.xda-developers.com/showthread.php?t=1377759
Click to expand...
Click to collapse
Okay, i have downloaded 4EXT recovery, now my battery is full, so i will try to check it in recovery tomorrow
Harbir said:
Bro go to recovery and change from there see if it chargers well there (this is to see that is it a ROM problem ) say in recovery while charging
Sent from my HTC Sensation using Tapatalk 4
Click to expand...
Click to collapse
bobrda said:
Maybe there is no recovery, so can not check ...
@ domukas00 go to this link and download 4kt recovery, and try what you suggested by Habiri
Try here http://forum.xda-developers.com/showthread.php?t=1377759
Click to expand...
Click to collapse
Today I turned 4EXT recovery when my battery had 60% at 4:21PM. After 2hours at 6:31PM it showed 82%, i thought that it's may be charging slow because screen is always turned on in 4EXT recovery, but still rebooted it. After reboot it showed 100%...
domukas00 said:
Today I turned 4EXT recovery when my battery had 60% at 4:21PM. After 2hours at 6:31PM it showed 82%, i thought that it's may be charging slow because screen is always turned on in 4EXT recovery, but still rebooted it. After reboot it showed 100%...
Click to expand...
Click to collapse
and I added about 10% when I reset the phone .. Try to get into recovery and wipe the Battery status.
Here they say that it takes about 2-3 charge that showed the true condition of the battery
bobrda said:
and I added about 10% when I reset the phone .. Try to get into recovery and wipe the Battery status.
Here they say that it takes about 2-3 charge that showed the true condition of the battery
Click to expand...
Click to collapse
It didn't helped. Today I got other HTC sensation phone, and it has same problem!!! After being charged from 60 to 72% in 1 hour I rebooted it and it showed 98%!! WTF!!! How it can happen?! At the moment I have 2 HTC sensation and they two have same problem! I can't believe it!!!! Never had similar problems with other phones...
domukas00 said:
It didn't helped. Today I got other HTC sensation phone, and it has same problem!!! After being charged from 60 to 72% in 1 hour I rebooted it and it showed 98%!! WTF!!! How it can happen?! At the moment I have 2 HTC sensation and they two have same problem! I can't believe it!!!! Never had similar problems with other phones...
Click to expand...
Click to collapse
In the end you still have a fully charged battery, it just do not show well while charging?
I read somewhere in albinomena tread to show that when the phone is fully charged, you need to leave for an hour on the charger.
I do not know this dayes my anker is really acting up strange, I can not get over 3h screen on time
Try to change the rom, mabey
domukas00 said:
It didn't helped. Today I got other HTC sensation phone, and it has same problem!!! After being charged from 60 to 72% in 1 hour I rebooted it and it showed 98%!! WTF!!! How it can happen?! At the moment I have 2 HTC sensation and they two have same problem! I can't believe it!!!! Never had similar problems with other phones...
Click to expand...
Click to collapse
Wiping battery stats won't help you.
Put your phone to charge overnight, discharge it completely. Do this for a few days.
Do not wipe battery stats, or you'll have to go all over again.
Happy to help.

Phone is stuck on a % and does not charge

Ok so my N5 is stuck on a % that I plugged it in to charge it and it does not move from there! U have rooted stock 4.4.2 and franco 23.
ps: The only way it fixes is I have to discharge it with 1% or more and then it charges normally.
Wipe cache and dvalik and reboot see if it helps
Sent from my Nexus 5 using Tapatalk
My charging is like totally bugged. This freeze drives me mad.
Ev1L4o said:
Ok so my N5 is stuck on a % that I plugged it in to charge it and it does not move from there! U have rooted stock 4.4.2 and franco 23.
ps: The only way it fixes is I have to discharge it with 1% or more and then it charges normally.
Click to expand...
Click to collapse
Is it *actually* not charging, or is an app/widget telling you that? Look at the battery statistics and see what the actual battery level is at.
No apps or all. Even overnight like 8-10 hours it stucks on a specific % and does not drop or chargers. It is like it draws enough energy to work... I am using the original Gnexus charger which is 1.0A and it charged nex5 for like hour and a half when this stupid error does not occur.
i'd flash the stock kernel, wipe both caches and watch it to see if that resolves the problem

[Q] Battery Won't Charge Beyond 76%

Hey guys, I've got a bit of an issue with charging. I'm running Cataclysm ROM with FK r35 kernel with minor downgrading setups that worked perfectly well for me. So yesterday I left my phone on charge over night and woke up to find the charge stuck at 74~76percent and phone was at room temperature. Charger was plugged and in the About section it says AC charging. So I figured maybe its the kernel so I switched it off and kept it charging, but its still stops going above. When using the phone the battery charge reduces normally. Any suggestions? I thought maybe the battery's internal cycle is not in sync but there's no option to reset it.
Edit: atm I'm trying to completely drain the battery and let it charge again. Hope that will solve it.
Try a battery calibration app.
Sent from my Nexus 5 using Tapatalk
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
xBeerdroiDx said:
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
Click to expand...
Click to collapse
i would do this as well. let it drain far enough to where android shuts it off, and then boot the device up into bootloader and/or recovery. keep it on here until the device truly hits 0%(android shuts it down at 1% i believe). then plug it in and let it charge up completely
xBeerdroiDx said:
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
Click to expand...
Click to collapse
Sorry I wrote it wrong. I meant I switched off the phone and tried charging it. ATM ive turned it on and its been charging for the past 1.5hours and its still on 16percent. Its charging extremely slow and in System Monitor app it shows that charging will complete in 3hrs39min...btw I'm using the stock charger and cable that came with it.

Strange Issue - Battery 100% But Phone gets switched off

Hi friends,
Help needed. I flashed Halogen OS and installed Lightning Kernel today. Did some profiling in Kernel Adiutor....
After some time I am experiencing a strange problem. Mobile gets switched off continously.... And my battery is 100%
Phone works well when connected to charger.... Could this be the sign of battery got damaged?
Update: It was the battery that was causing problem. Replaced new battery and now everything is fine... Thanks for replies...
Yes the batteries need replacements...every time the phone required a charger to boot is a sign of dying batteries...buy new batteries and all the problem will go away...no need to flash or format anything cause it won't fixed your problem...
vipinpvarghese said:
Hi friends,
Help needed. I flashed Halogen OS and installed Lightning Kernel today. Did some profiling in Kernel Adiutor....
After some time I am experiencing a strange problem. Mobile gets switched off continously.... And my battery is 100%
Phone works well when connected to charger.... Could this be the sign of battery got damaged?
Click to expand...
Click to collapse
I agree with @iPusak Gaoq™ ,but just to confirm, try flashing another ROM.
Wow! I am literally having the same issue! https://forum.xda-developers.com/oneplus-one/help/boot-rom-phone-restarting-t3677975
Mystel said:
Wow! I am literally having the same issue! https://forum.xda-developers.com/oneplus-one/help/boot-rom-phone-restarting-t3677975
Click to expand...
Click to collapse
And you both are Indians! Hmm,must be coincidence.
Mystel said:
Wow! I am literally having the same issue! https://forum.xda-developers.com/oneplus-one/help/boot-rom-phone-restarting-t3677975
Click to expand...
Click to collapse
Normal issues considering that opo batteries only lasted 2-3 years...
Sent from my A0001 using Tapatalk
iPusak Gaoq™ said:
Normal issues considering that opo batteries only lasted 2-3 years...
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
Okay..... Now having issue like the battery says 100%. When i disconnect charger the phone goes switched off in one or two minutes.... If restarted it goes on boot loop like behavior which I believe could be battery not charged.... When I connect to charger the device boots and everything works perfectly. Strange thing is the battery shows charging and it becomes 100% in 2 minutes.... But still it goes off after 2 minutes if disconnected from charger...
vipinpvarghese said:
Okay..... Now having issue like the battery says 100%. When i disconnect charger the phone goes switched off in one or two minutes.... If restarted it goes on boot loop like behavior which I believe could be battery not charged.... When I connect to charger the device boots and everything works perfectly. Strange thing is the battery shows charging and it becomes 100% in 2 minutes.... But still it goes off after 2 minutes if disconnected from charger...
Click to expand...
Click to collapse
Don't be fool at the batteries percentage on the phone as it is not accurate anymore when you have a dying batteries...it may showed 100% but you actually have lowered or none at all...that is why your phone required charger to boot cause the phone need power from the charger to boot and once you disconnect it, it will goes into bootloop cause the batteries is no longer work as usual...
Sent from my A0001 using Tapatalk
iPusak Gaoq™ said:
Normal issues considering that opo batteries only lasted 2-3 years...
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
iPusak Gaoq™ said:
Don't be fool at the batteries percentage on the phone as it is not accurate anymore when you have a dying batteries...it may showed 100% but you actually have lowered or none at all...that is why your phone required charger to boot cause the phone need power from the charger to boot and once you disconnect it, it will goes into bootloop cause the batteries is no longer work as usual...
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
Thanks for the Information.... I have ordered a new battery from ebay.... Let me replace and update you...
If the battery is dead how can this device keep on boot looping ? Also it stays awake in recovery.... almost 15 minutes now and still the device is on status in recovery
I have the same issue. I don't think its a battery problem. As recovery is working fine without charger, I kept mobile on recovery and switched off the screen timeout and battery performed normal. So it can be deduced that, there is software problem only.
Sumedh Lichade said:
I have the same issue. I don't think its a battery problem. As recovery is working fine without charger, I kept mobile on recovery and switched off the screen timeout and battery performed normal. So it can be deduced that, there is software problem only.
Click to expand...
Click to collapse
Ah,can you deduce how come it is not happening for others on same software?
Sumedh Lichade said:
I have the same issue. I don't think its a battery problem. As recovery is working fine without charger, I kept mobile on recovery and switched off the screen timeout and battery performed normal. So it can be deduced that, there is software problem only.
Click to expand...
Click to collapse
No its actually batteries problem...if you can boot into recovery without charger then the batteries is still not in a critical condition yet but if you able to boot into recovery with charger connected or worst case scenario doesn't even boot to recovery even if charger connected then your batteries is in critical condition...
Sent from my A0001 using Tapatalk

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