In the Raphael Radio thread(http://forum.xda-developers.com/showthread.php?t=439566), someone said:
Antzor said:
Try soft resetting the device and see if the charge holds.
I was impressed mine was only down to 50% by the end of the day, but then i did a soft reset and afterwards it read as 28%
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Click to collapse
I also have this kind of problem on my device, but not it doesn't occur every time on these situations. In further research, I find out only some of the batteries (I have 3 original batteries for the device) can't read accurately. Does anybody else experience this problem?
I also have this problem.
HTC support seem a bit oblivious to it however and gave me no help.
seems that after a few reboots, once the loss of charge seems to settle, ie only going down by say a few percent each boot, then it is stable, and once given a full to 100% charge, which can take more than overnight (if you leave the phone on - which it seems you have to, for this to work) then it holds a charge well.
Yep, same problem here as well. It seems to have started with me over-loading the battery. Afterwards it showed a bit of variation before and after a cold boot. However the differences are not that extreme (+- 5%). Also I noticed that temperature plays quite an important role.
Maybe also the battery % tweak has something to do with it, but I cannot confirm this.
Jouke74 said:
Maybe also the battery % tweak has something to do with it, but I cannot confirm this.
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Click to collapse
I've also noticed this. But I think that the battery reading is never fully accurate and never was on earlier devices either. It's only the detailed percentage reading which is now possible on the VGA screen that makes us noticing it.
DeepThought said:
I've also noticed this. But I think that the battery reading is never fully accurate and never was on earlier devices either. It's only the detailed percentage reading which is now possible on the VGA screen that makes us noticing it.
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Click to collapse
I always use other utilities to view battery status in percentage for years. On my previous devices, from Magician to Kaiser, percentage was going down all the time, but on Raphael, sometimes the percentage just freeze - It means, the percentage stayed on like 73% for serveral hours but after I soft-reset the device, the percentage reads 49%. So this problem is more than inaccuracy, actually it may be a hardware bug.
I've noticed that after charging my TP for around 2-3 hours the battery will be fully recharged, even though my TP is reporting it only being as low as 50 % charged. If I just unplug it at this point, and start using it normally, the battery reading is highly inaccurate and often freezes for several hours just to take a ~20 % dive later. However, if I do a soft reset after charging (no matter if it's fully charged or not) I feel I can get fairly accurate and consistent battery readings. Also, if I've been charging for ~3 hours, the battery reading may well say it's only 80 % charged, but after a soft reset it's gone up to 100 %.
So, for me, a soft reset after every charging period keeps the battery reading quite accurate.
I've been noticing the same problem with the soft resets from all my ROM flashing. I've also noticed that it pccurs sometimes when texting or using the internet. I'll send like one or two texts and my charge drops 5%. I guess the thing that calculates the battery charge uses some weird algorithm that doesnt work correctly when the phone is essentially idle.
Related
my o2 xda is running tnt wm6 for a long time now with no problems but recently my battery has started draining super fast like right infront of my eyes it drops percent numbers. i run battery status but that has never bugged the battery before. i also tried switching batteries with two of my friends and their phones run fine but mine drains fast. i have charged it with both the computer and the charger. it charges super slow and upon charging when i restart it the battery drops something like 20 percent or more instantly. could this be a virus? i factory resetted my phone and formatted my memory card but im still getting this issue. please any help would be much appreciated!
d3aded said:
my o2 xda is running tnt wm6 for a long time now with no problems but recently my battery has started draining super fast like right infront of my eyes it drops percent numbers. i run battery status but that has never bugged the battery before. i also tried switching batteries with two of my friends and their phones run fine but mine drains fast. i have charged it with both the computer and the charger. it charges super slow and upon charging when i restart it the battery drops something like 20 percent or more instantly. could this be a virus? i factory resetted my phone and formatted my memory card but im still getting this issue. please any help would be much appreciated!
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Click to collapse
try other ROMs.
the fact of the matter is that ive been using this rom for so long without problems and this battery charger thingy just started a few days ago. could this be hardware problem?
Time for a new battery. Try nothing else until you have replaced it, with a new one, not one from another phone.
new battery really? u mean a battery from another phone doesnt do? and yes my battery dies very fast even my friends battery in my phone. cudnt this be a problem in my phone then? cause its his battery
Its definately a battery issue.
Check out this thread and I think you will relate: http://forum.xda-developers.com/showthread.php?t=353780
Then go to eBay and buy an new OEM replacement for like $10 shipped. I think I paid $8 for mine.
I personally think it is a bug.
On three separate occasions using various roms, my battery would drain from 100% to 0% in an hour. I would reset everything, recharge and it would run normal without problems.
I do not know what causes this but it does appear to be a software glitch, at least in my case.
try to hard reset your device and then test (after backup your data).
this can give you the clear reason (in case of the rom was running well with you).
good luck
try another radio!
i had the same issue, but it stop draining after i ordered the new battery
I suspect that it is not the battery or the unit.
its right said:
try to hard reset your device and then test (after backup your data).
this can give you the clear reason (in case of the rom was running well with you).
good luck
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Click to collapse
Actually I am suddenly having the same problem with a brand new battery on a brand new Wizard.
I just loaded the newest Mfrazz Rom which seems to be fantastic in its applications, speed etc. however immediately on loading the ROM, my battery does get hot in normal use and drains to 30% in a normal day. I have even loaded the IRDA disable cab to no particular effect.
Is there some specific procedure to which you are referring for hard resetting the Wizard? I assume you don't just take out the battery?
Dead battery
Lithium batteries can be killed rather easily. I know from rc helis. Most mobile phones use lithium-ion batteries. Helis use lithum-polymer batteries but they have pretty much the same charactoristics. li-poly is a little more volitile, they can and will explode if you charge or discharge too much or too quickly. If you over charge, you kill it. If you over drain, you kill it.
If you are in a place where you get little or no signal turn off the radio. It will discharge quickly if it's searching for a signal. Also if you are not using the bluetooth or wifi turn them off, same thing. That's why they provided the Comm Manager. Try not to let your charge get below 20%. Definately don't let it run completely out or stay that way long.
A dead lithium battery will not hold a charge at all. Just like you see, the numbers dropping off quickly. It will charge fast too.
(Snot the battery)
licensedtoquill said:
Actually I am suddenly having the same problem with a brand new battery on a brand new Wizard.
Is there some specific procedure to which you are referring for hard resetting the Wizard? I assume you don't just take out the battery?
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Click to collapse
Looking at it afresh, it isn't the battery which is heating up on installation of this ROM, it is the unit itself. The battery seems to be remaining at a comparatively normal temperature though the heat generation does drain it very quickly as I said.
Not sure that this problem has ever been addressed before on these boards? It may be something to do with not flashing to a manufacturer's ROM before flashing to Mfrazz's new one?
Has anyone ever seen these symptoms before?
In addition to some of the other posts ,you could check this :
WM6 may need to "learn" the battery levels again.
Try FULLY discharging & recharging your battery 3-4 times.
If this doesn't make things better, maybe you should check if you are running anything strange in the background...
jtrash said:
In addition to some of the other posts ,you could check this :
WM6 may need to "learn" the battery levels again.
Try FULLY discharging & recharging your battery 3-4 times.
If this doesn't make things better, maybe you should check if you are running anything strange in the background...
Click to expand...
Click to collapse
Lithium batteries don't recover like ni-cad. Spend the $10 and solve the problem. DONT EVER FULLY DISCHARGE A LITHIUM-ION BATTERY. That is the quickest way to kill it.
mr.incredible said:
Lithium batteries don't recover like ni-cad. Spend the $10 and solve the problem. DONT EVER FULLY DISCHARGE A LITHIUM-ION BATTERY. That is the quickest way to kill it.
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Click to collapse
As far as I am aware it is difficult to FULLY discharge one of those batteries in the Wizard? The unit starts giving error messages when it gets to the 15% level and some time thereafter shuts most of its functions down to prevent this. Whenever I have had problems with these units getting hot and even discharging and shutting down, the battery level never seems to be at 0% when I plug it in again. I have never thereafter found any permanent damage to the battery.
I think we should address the problem which seems to be in issue here which is that somehting in the OS is causing the battery to discharge as opposed to replacing the battery and watching the problem continue. At least, that was MY problem.
I am obviously not saying batteries don't die. All I am saying is that for a lot of users, the problem may lie elsewhere. Meanwhile I have flashed back to T-Mobile and re-flashed the newest Mfrazz which SEEMS to be quite VoIP friendly and overnight the unit doesnt seem to have heated up.
since i cant order a battery from where i live i tried reflashing my phone and memory card and i think that fixed it. maybe in my case its an os bug. and yes i definitely have been treating my battery badly on discharging and over charging. thanks for the info
They are not that delicate if you know what kills em it's pretty easy to avoid. They don't develop a memory like the older ni-cads. if you are going to store one charge it first. They don't power drain by them selves unless they are in a device. Just don't leave a battery drained. Also they wont over charge in the phone. The phone will stop charging when the battery is full, and 0% is not actually 0volts. There are built in safeguards for the average user.
Has anyone worked out why it takes so long to charge. I ran mine flat twice and both times it has taken about 10 hours to charge. To me this is not acceptable. Is it becasue of the charger or the hardware on the phone? Both times the device has been switched off so nothing has been draining whilst charging.
laft2k said:
Has anyone worked out why it takes so long to charge. I ran mine flat twice and both times it has taken about 10 hours to charge. To me this is not acceptable. Is it becasue of the charger or the hardware on the phone? Both times the device has been switched off so nothing has been draining whilst charging.
Click to expand...
Click to collapse
Software bug with the charging and battery management. Try doing a soft reset after 4 hours and it will say 100% You may also have noticed that the battery appears to drain sprarodically - ie can stay at a level for some time and then drop by 3 or 4% or more. Again i beleive a software battery management issue.
I agree...shouldn't be taking any longer than an hour (in the car, 40ish minutes in the house). I'd hard reset to see if it would fix the issue. Unfortunately, that is a very big issue to have!
i have the same problem... 6 hours of charging time takes it to only around 89%. can someone confirm that theirs take the normal hour or so? thanks!
try soft reset after an hour, it should work..
the problem is (maybe) with the battery management, where it thinks, it's still charging, but the battery is full charged..
Druby said:
try soft reset after an hour, it should work..
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Click to collapse
so u mean it is a software glitch?
i really don't want to have to get up every night and soft reset after an hour or so charging!
well..if you charge during night, it's OK, you can sleep..;-)
but you're right..SW glitch..
I think this need to be reported to HTC, cause power management is a really very important part of the system...
Cheers
thanks Druby...i tried what u suggested.... TP was charging for 6~7 hours but still at 89% batt....soft reset, then charge again... reached 100% in 20 minutes!
am very surprised this problem is not faced by more ppl....!
UR welcome..
I still hope, it'll be fixed in any future ROM..
..btw. did anyone write to HTC 'bout this..??
Druby said:
UR welcome..
I still hope, it'll be fixed in any future ROM..
..btw. did anyone write to HTC 'bout this..??
Click to expand...
Click to collapse
Yes.... have u?
laft2k said:
Has anyone worked out why it takes so long to charge. I ran mine flat twice and both times it has taken about 10 hours to charge. To me this is not acceptable. Is it becasue of the charger or the hardware on the phone? Both times the device has been switched off so nothing has been draining whilst charging.
Click to expand...
Click to collapse
That's insane, I only checked once when someone asked me how long it took to charge, and 2 1/2 hours after it had died on me, it was fully charged again. From absolute zero, wouldn't even turn back on, to 100% full battery in that amount of time (probably much faster, but I didn't bother to check it until they asked). To have your device take 4x as long, there must be some sort of malfunction, that can't be right. I assume you mean charging from a wall outlet and not sync'd with a computer.
Like i said in a previous post, i believe its a software bug. In 6 weeks of use, this has only happened to me once, and was after a deep discharge. Also many people have noticed an erratic battery level indication - ie it can be stuck on 96% for a while and then jump down to 92%. Also many have noticed that doing a soft reset can give a different battery level. If it was a hardware fault, resetting the device and hence rebooting the software would not result in suddenly getting 100% charge.
Indeed... I have the pitchforks, someone grab the torches, we're forming an angry mob and marching up on HTC with it.
ardsar said:
Like i said in a previous post, i believe its a software bug. In 6 weeks of use, this has only happened to me once, and was after a deep discharge. Also many people have noticed an erratic battery level indication - ie it can be stuck on 96% for a while and then jump down to 92%. Also many have noticed that doing a soft reset can give a different battery level. If it was a hardware fault, resetting the device and hence rebooting the software would not result in suddenly getting 100% charge.
Click to expand...
Click to collapse
I have noticed this also, battery indicator works erratic way, and most probably is a driver fault more than a hardware malfunction...
Sometimes level increase 2-4% when softreset, sometimes increases 5-10% if chrging and softreset... but i beleave is a driver problem...
i sent an email to HTC about....
Cheers
My first TP set had problem where it could not fully charge. I notice that it gets really hot when using it even for a while. The vendor change another TP for me and the current one charge properly. After using it for 3 weeks, the battery performance also improved.
My Touch Pro need about 4-5 hours to bee fully charged
I use original charger from the box.
I still have this problem but the soft reset trick fixes it. Not good though. I have also sent a message to HTC.
BatteryPoll
Can you all post the HKLM\System\CurrenControlSet\Control\Power\Timeouts\BatteryPoll DWORD value, please...
Thanks...
mine is 500 in DEC or 1F4 in HEX..
Today when I woke up, the battery was 40%. Not TOO strange (I am not very sure how much I left it last night) but strange.
That is not the problem though. The problem is that 3 minutes later while I was playing some backgammon on the device (don't ask), the power was already 37%.
Since daylight savings today, must have confused a couple of apps in my device (notably Klaxon - will post in its thread for that), while I was playing klaxon I got some delays so what do we do? Soft reset of course.
This is where the strange thing happened... After soft reset, just a few minutes after the 40%... I got... 23%!
Anybody noticed something like that?
I usually don't let my batter go so low (li-ion batteries don't like low numbers), so I don't know if this is a known issue.
This is a common problem, check out the other battery threads. The battery maagement on this device is a little suspect. A soft reset usually results in a different battery level - some people including me sometimes find chargin stops around 87% however a soft reset will give 100%.
Hopefully a new rom update will provide better drivers.......but only if people are telling htc about it.
A full discharge in every 20 charge cycles is recomended as posted in other threads, in order to calibrate the battery indicator.
ok thanks man
That capping at 87% thing happens on my Elfin. When I softreset, it's 100%. Though it doesn't always happen.
I know there are a few threads on the battery levels being a bit random at times, but mine is really hacking me off.
It will stop at say 75% and just stay there, when I reboot its down to like 50% or less. Twice now its gone dead because I though it had plenty of charge but just wasn't moving.
Is it the phone or battery thats the problem or drivers or something - ps this is on a standard rom, no tweaks etc.
same here.im using romeos rom but it seems to be a problem with another roms to.the battery % stay (for example) 10 hrs 68 % and after reset dropt 5,10,15 % down . is it hardware problem or software ?
And quite same here... The case is a bit worse even. When I charge it from lo-bat warning to full, it sort of overcharges itself and might hang up even! I noticed this in two phases - 1) when I left my TP to charge during night, it was hanged in the morning 2) when charging from lo-batt and restarting at ~85% bat level, after boot up the battery reports something at 98% or something!
I have the same (all posts) some time I have 78% and make reset and now i have 89%. Which is real 78 or 89%!??
when I charge all night I have only 70-92% after 6 hours, and after reset 100%
For me this is unusable as I cant trust it without constantly rebooting which is not good enough.
Lucky for me its a second phone, so I'll flog it and think of something else.
Hi there!
I have the same problem, after charging over night. The battery indicator shows, that a battery is not fully charged. After short removing battery and rebooting it shows 100%. With another HTC battery it is the same. When I use another spare battery (not original HTC), it works correctly. But I dont like the spare battery, because it is hard to remove from device because of its sharp edges. I think, it is a HW problem of battery, or a problem of device.
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
How can this be fixed? Or "Recalibrated?
I'm letting one of them completely drain, to see what happens.
At least the 94% one gives me an idea on what the battery life is, since I can just tack on +6%. But the one stuck at 100% is a complete mystery - it could be 5% off, 10% or even more.
Also, these run on 2 cell batteries making 7.4V nominal. All the devices before are using single cell batteries at 3.7V nominal. So Android may have issues with that voltage difference.
roebeet said:
I'm letting one of them completely drain, to see what happens.
At least the 94% one gives me an idea on what the battery life is, since I can just tack on +6%. But the one stuck at 100% is a complete mystery - it could be 5% off, 10% or even more.
Click to expand...
Click to collapse
I had the 100% battery issue before and it took a long time for it to dip below 100% (so long that it seemed unreal). Later I decided to let it drain to zero before recharging it to full again. Since then the battery indicator seemed to behave normally and discharged at a normal rate when the tablet was in use.
Have you tried deleting /data/system/batterystats.bin to wipe battery status? Mine sits on 100% for ages so I'm trying this now.
roebeet said:
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
Click to expand...
Click to collapse
samepic said:
I had the 100% battery issue before and it took a long time for it to dip below 100% (so long that it seemed unreal). Later I decided to let it drain to zero before recharging it to full again. Since then the battery indicator seemed to behave normally and discharged at a normal rate when the tablet was in use.
Click to expand...
Click to collapse
I tried that once, by setting it to never shutoff and letting it go over night. The next morning I charged it to green plus 30m as someone suggested in the TnTL thread, but I still had the problem of the meter sticking at 100% for a long time.
Anyways, I installed 3.0.0(TnTL) on monday and decided to also use the CWM clear battery data option, and now it seems to be dropping more as expected, but I'm not entirely sure that I did it completely correctly as by the time that I did the clear battery data option it would've been below 100% charge since I did so AFTER running the update.zip... just have to wait and see now...
Battery Stays at 100% For Ages
My battery stayed at 100% for ages the first time I charged it. Then it dropped quickly and cut out around 50%. I recharged it and it seems to be behaving more normally now. It still seemed to hang at 100% for a while, but no where near as long as the first time. I'm waiting to see at what percentage it dies this time.
my zt 180 tablet never got above 94% also. And it dropped pretty quickly and at around 40% it seemed to get a second life and slow down, but eventually it went all the way down to about 10% and then I would charge it (about 3 hours max). It too is a 7.4v supply.
My Odroid T had a 3.4 supply and it was pretty linear, showed charged at 100% and went down accordingly, though the developers had some issues with a few software releases where it did behave erraticaly and they did a few patches that fixed it.
roebeet said:
My original device always seems to take forever to go below 100%, and I just got a new device that has the opposite issue - it never goes above 94%. So I did some further tests, tonight.
My 94% device goes down fairly steadily once unplugged. But, the device at 100% does not. Also, when the 100% device is drained and I recharge it, it still says it's charging when its at 100% - so what does this mean?
I think that the battery calibration is off, as we already assumed. So, my 94% device is really 100% and I suspect that it would survive beyond 0% as it probably still has 6% juice left in reality. And, in the case of the 100% device, it's probably mis-calibrated to 105 or 110% (or more?). Since the UI can't show you 105%, it just shows the max of 100% until it goes below 100% which can take some time. I also suspect that the device would cut out at 5% or 10% since it's actually drained completely.
So that's the reason, I think. As to the fix, I don't know. What's weird is that these two devices are so different in terms of how the battery status is calibrated.
Click to expand...
Click to collapse
Warning: Slightly off topic -
I'm glad Roebeet was able to get a 2nd Gtab. Hope you found a good discount. Happy Holidays!!!
Now back to the topic discussion...
Butch1326 said:
Warning: Slightly off topic -
I'm glad Roebeet was able to get a 2nd Gtab. Hope you found a good discount. Happy Holidays!!!
Now back to the topic discussion...
Click to expand...
Click to collapse
Off-Topic x2 : yep, got used one that another XDA user had returned!
On-Topic: Still waiting for the battery to discharge, it went to sleep last night. Getting close....
roebeet said:
Off-Topic x2 : yep, got used one that another XDA user had returned!
On-Topic: Still waiting for the battery to discharge, it went to sleep last night. Getting close....
Click to expand...
Click to collapse
I also had the issue of battery showing 100% for a long time and then cutting out around at 50%. One of the posts mentioned doing a battery stat wipe in CWM after charging to 100% + 30 minutes.
I did this with a little twist of my own.
I allowed the battery to drain completely and tab to shut off. Plugged in the charger and immediately did a battery wipe in CWM. Allowed the battery to charge fully upto 100% + let it be on charger for additional time till the battery symbol in the notification bar no more showed charging sign. Again did the battery stat wipe in CWM and then rebooted the tab.
Since then i observe that the battery has been draining as it should be expected to. down to 72% after about 4+ hours of use. I will still be monitoring the battery discharge further for two or three more charge cycles. But I feel doing battery stat wipe in cwm 2 times at full drain and then again at full charge might have helped caliberate it properly.
Let me know if anyone else tries this and gets same or different observations.
Try installing this to measure your current usage over the life of the battery... (dont have a GTab and still considering). Since most likely this widget and the battery monitor are using the same API we will see if its a hardware sensor issue or a software issue...
http://www.appbrain.com/app/currentwidget/com.manor.currentwidget
I suspect its in their battery monitor and not the sensor or API... if that is the case it should be easy to debug (if you have the source). Typically these issues are due to poor polling algorithms...
Im new to android so I am unfamiliar with profiling capabilities of the platform...(Still learning)
Perhaps this will be one of the 'little fixes' that will be present in the latest FW update when VS drops it tomorrow. I have the 100% unit BTW. A fix would be nice.
Reading this thread this morning it got me thinking about my gtab battery situation. When I first got the gtab, the battery stayed at 100% for hours, then the percentage dropped like a rock. Over time, the battery dropped in more regularly, although it drops in large numbers (like from 100% to 83%, then to 67%, and so on). I'm currently running TnT Lite 3.0.
This morning I charged the battery to 100%, and while plugged in (to the AC outlet), I reset the battery stats using cwm. The battery today has been steadily going down throughout the day as I would expect. In over 8 hours, I watched the battery go down steadily from 100% to 84%. So far, so good.
my exp
Tried draining once, just let it sit, didn't fix it.
Tried again but this time I kept the screen on and watched the voltage, shutdown was near 6.8 volts. Now the meter is accurate. YMMV...
@it'sDon - it wasn't fixed in the update.
I was in the same boat as most of you. Took a very long time to go down from 100% and then zonked out completely at ~10-15%. It's now been charging for a few hours and it's been sitting at 100% for quite a while but the light is still red (so it's still charging) which means it will probably happen again looks like it's charging to some value over 100% and when it discharges, knocks out while the meter is still reading as having juice. Roebeet is 100% on the money.
I am going to try the CWM battery value reset some of you mentioned to see if it does something once my light is green, then I won't charge it and watch it like a hawk once it hits 20% to see if it shuts down at 10-15% or a value less than 3% which is acceptable I think.
I never had a problem on my stock(ish) g-tablet. That is until I installed the latest update.
I had to do a data wipe before any of the cosmetic TnT changes would show. After that the battery now seems stuck at 100%. This wasn't that way before, so I will try draining the battery, and see what happens.
Since I found that this was tied to my latest update, I think that I should call CS and complain.
My battery drain didn't make a difference, either. Still haven't pinned down a fix that works.
At least those of you with 94% max have a general idea when your battery will die. With us "100% forever" ones, we have no clue.
Actually, I may not have a problem after all. I have had my tablet on for about two hours. It is now showing the battery at 86%.