I've looked in the forums and can't find my particular problem. I have a rooted Verizon SCH-I800 Tab running stock rom. I have had it for a year with no problems. Just the other day, the battery started freaking out on me. When I plug it in the battery charges quickly. As soon as I unplug it, it discharges to 0% within about 40 seconds. When I leave it plugged in and turned on, I can view the battery function through the settings menu. The battery jumps from 97% to 89% to 68% to 56% before jumping back up to 98% or so - all within about 20 seconds.
I've done a factory reset with a full wipe and cleared everything, including the cache. Same problem.
Is this thing done, or is it a software glitch I can fix? Thanks for any info or pointing me to a thread where this has already been dealt with.
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I let my phone run down to 16% and I was planning to let it go to 10% before plugging it in to charge.
At 16% I was on wifi and browsing websites when it just turned the screen off, made a warning sound and flashed the red battery light. After about 3 sec it started vibrating non stop which made me think of the 'discharge' feature on some phones, (which quickly uses/discharges the battery..), I didn't want it to go to 0% so I pressed (tapped not held) the power button which seemed to turn it off. I turned it back on, plugged in, and it booted up showing 0% batt.
My question is, has anyone come across this before? Should the batt % be this incorrect? and why did it vibrate..
My phone has been frequently below 15% without problems (yes, it's not very good for the battery, I know). It should vibrate once when it hits 15% and display the charge message, but that's it.
Happened once though that my battery discharged from 50% to 0 in literally 1 second, don't know what happened then, but it hasn't happened again.
Sounds like either your battery shorted or the calibration on battery % was way off on your phone. Try charging it to full and see what happens the next time you reach 16%, it might've fixed itself.
The other day my Nexus turned off at 11% :/
wipe battery stats after a full charge.. guess that will solve the problem
this isnt just a froyo issue, i am still on 2.1 and my battery dies at 8% EVERY time. it turns off, and when i turn it back on, it shows 0% but it died at 8%. its been this way the entire time i've owned the nexus. i'm not rooted so i never wiped the battery log files yet....but i will soon enough.
Ya my phone dies at 20% everytime. I just ordered a new one though
xzr3b0rnzx said:
wipe battery stats after a full charge.. guess that will solve the problem
Click to expand...
Click to collapse
do that.
On 2.1 my N1, first my N1 had its multitouch laggy starting at 15%, then after some day of uses it shuts down at 1%.
Your battery just need to be calibrate.
So I was running cognition 2.4.1 for a long time, and my battery life was awesome. It would barely go down at all if I didn't use it, and would make it through the day with about half to spare. On normal days I unplug at 630am and at 5pm it would be at ~70% (if i didn't really use it at all). Even if I did use it it would still last a long time.
I finally decided to flash a new/different rom and thats where my problems started. I flashed Assonance 5.0 and the battery life got worse (at 5pm i was at about 45%) so i just assumed it was the rom and that cognition was better on battery life. So my next flash was back to cognition (a newer version, b7 i think), which improved battery life, but it was barely noticeable, and was no where near what it used to be. Next I tried pheonix v1.5 and that was probably the worst yet, as my phone almost died by 5 oclock.
Finally I decided I would go back to cog 2.4.1 even though it was outdated. I figured this would solve all my problems. I was wrong as my battery life is absolutely terrible right now. At one point yesterday it drained 12 percent in 30 mins.
Something else also happened yesterday. As it was almost going to die i plugged it into my car charger for about 10 mins. It was at 15% when i put it on and 19 when i took it off. After that my battery life was almost normal again as it only drained 4 percent over the next 3 hours. Later on that night I charged it back up to 50 percent and about 10 mins after taking it off the charger it said it was at 5 percent. It stayed at 5 percent for the rest of the night and did not die ( about 4 hours).
Theres definitely a problem and I know it was to do with the battery reading. I think i just need to reset the battery stats.
FYI every time i flash a new rom i always flash back to stock jf6, make sure its 100% battery, wipe data and cache, etc etc etc. so im not sure why this is happening.
I also tried wiping stats through clockworkmod recovery, but i dont think it really does anything.
The proper way to wipe battery stats/recalibrate your battery:
Charge up to 100% with the phone on. Disconnect the charger and turn the phone off. Connect the charger; you're now in charge mode. Charge up to 100%, disconnect the charger and turn on the phone. As soon as the phone is on, turn it off. Connect the charger to put it into charge mode again, and charge up to 100% again. Some people also say that before starting this process it's a good idea to kill the battery completely.
That is how you bump charge, or recalibrate the battery. After bump charging is the best time to wipe battery stats.
I can't find batterystats.bin on the phone to delete it. Is the only way via terminal mode or Clockwork?
I have had battery problems plague me for the last month, regardless of flashing, reverting to stock etc.
The following data is compared to my friends captivate, who is running the same setup as I am Continuum 3.11 and Speedmod k13c. He currently gets at least 24 hours on a full charge (thats WITH gaming and calls etc.). I can barely scrape 10 on minimum use.
At first I thought it was a rogue app that was constantly draining, but unfortunately it was not (after several trials and monitoring apps).
Next, i tried reflashing, Master clearing + flash from stock, flash at 100% charge, but still nothing.
Next thing I tried was to see if it was my battery was faulty (doubted it because it was new from original phone. Only had it for 2 months) by swapping batteries with my friends Captivate (also original battery). I concluded that this was not the problem since he was getting great battery life (if not better since mine is newer) and I was still draining.
After, I tried battery stats wiping, recalibration (bump charging) flash to stock and flash to a rom with reportedly good battery, with k13C speedmod. Still bad results.
So heres my current situation: I am running Continuum 3.11 with speedmod k13c. I have tried almost everything in my arsenal and googling but I have come back empty handed. It is NOT the battery, rogue app draining OR rom/kernal. I am completely stumped.
Heres a summary/extra details of my trials:
-Flash to stock and try again
-change batteries
-wipe stats, drain and recharge, charge for 8 hours, bump charge (recalibration), flash from 100%, master clearing etc.
- setting brightness to lowest, wifi off, plane mode when turning back on
- being anal and not installing new apps / using what rom came with
- My phone remains ice cold on standby. I know that when it gets hot, it drains (during standby and etc. but this time its ice cold)
- Here is some data: In one hour of minimal use (checking texts, replying etc.) I lose 10%. overnight I lose around 20%. In a heavy usage, 4 hours.
(note : I know that some of you might consider that barely passable battery life, but if I directly compare to the set up of my friend, its not right since in heavy usage he gets about 12 hours, which is my max per charge on minimal use)
Im hoping someone can help me with this problem, because I believe that this problem is plaguing other peoples phones as well, not just mine.
REFERENCE THREADS THAT I HAVE LOOKED AT:
This one
And this one of course
EDIT:
I recently swapped batteries again with my friend, because I recall fixing it at one point, but I had to reflash it due to a bug or something, i dont remember. But when we swapped batteries and swapped back, I seem to have fixed it. This leads me to believe that My phone right now has no idea where 100% actually is and its only charging to some random % that is NOT 100% .
This time, I swapped with him when he had 47 percent, and I had 87. After we swapped, we immediately checked the percentages. To my surprise, his 47% on my phone immediately turned to 23% But strangely, that 23% remained (the charge on 23 seemed to be holding for quite a while). But when I recharge, it charges WAY too fast (10 minutes of charging = 40% in total from 23%? B.S.!!!)
antonyfl said:
This time, I swapped with him when he had 47 percent, and I had 87. After we swapped, we immediately checked the percentages. To my surprise, his 47% on my phone immediately turned to 23% But strangely, that 23% remained (the charge on 23 seemed to be holding for quite a while). But when I recharge, it charges WAY too fast (10 minutes of charging = 40% in total from 23%? B.S.!!!)
Click to expand...
Click to collapse
I guess thats happen when you flash new rom or kernel or modem...you need to wipe battery stats to fix that....
viny2cool said:
I guess thats happen when you flash new rom or kernel or modem...you need to wipe battery stats to fix that....
Click to expand...
Click to collapse
I wish it were that simple =( I already tried that via recovery. Unless the recovery method is bugged and not actually wiping the stats. I will manually delete the battery stats and retry, but I dont think it will work.
im just reporting back that manual battery stats wipe did not work =( Any help please? I am absolutely stumped
sorry to triple post but I thought I should ask something else:
Would extracting the batterystats.bin from another captivate and using that one work? (assuming i set permissions correctly)
First some history. Running Jaybob 2.3.4 June 4th. With the .35 kernal. But had the same problem running Aosp 2.3.4 also with the .29 kernal. Firerats 1.5.8 I think it is. Mtd 95 20.
Now the problem, Sometimes I will charge the phone over night and in the morning it will be at the same battery percentage as when I plugged it in and sometimes it will show 100% but then unplug it and it drops to the exact level as when I plugged it in instantly. Other nights it will charge full and stay there. Have had same results with different cables and chargers. So last night after installing June 4 Jaybobs I let it charge all night and this morning it read 100% so I went into recovery and wiped battery stats and rebooted. After reboot it read 74% the same as when I plugged it in the night before. So I let it charge for an hour and a half and when I checked it it was at 74%. I unplugged and rebooted and plugged in and now after an hour it is at 91%. That is where i am at. I plan to charge to 100 and wipe again. Any insights into this problem? Anyone seen this before?
Edit. After charging and wiping battery stats it is at 100 after unplugging. Will let die and recharge and see what happens.
I seem to have a similar problem. I usually turn off my phone every night and let it charge. First thing in the morning, it always reads around 82% instead of close to 100% like it should. This has been happening for the past couple of months now, on completely different Roms too. Like you, I also wiped my battery stats at 100% and it didn't help. Whats also weird, is last night, I left my phone on and it charged up to 100%, but the first ten minutes after I took it off the charger, it was down to 82% and 30 minutes later (after actually using it) it is at 80%. So pretty much it fell off of a cliff and landed at 82% and is now acting normal. I know this doesn't answer your question, but it assures you that you're not alone, and I'm searching for a solution too ;-)
tannerw_2010 said:
I seem to have a similar problem. I usually turn off my phone every night and let it charge. First thing in the morning, it always reads around 82% instead of close to 100% like it should. This has been happening for the past couple of months now, on completely different Roms too. Like you, I also wiped my battery stats at 100% and it didn't help. Whats also weird, is last night, I left my phone on and it charged up to 100%, but the first ten minutes after I took it off the charger, it was down to 82% and 30 minutes later (after actually using it) it is at 80%. So pretty much it fell off of a cliff and landed at 82% and is now acting normal. I know this doesn't answer your question, but it assures you that you're not alone, and I'm searching for a solution too ;-)
Click to expand...
Click to collapse
Have you guys tried a New Battery?
Otherwise try presssing *#*#4636#*#* then select the Battery option, and take a look at the Health and other Info...
Might Help Determine the Problem?
Good-Luck!
*Sent on My*
Fast as its Ever Been....
"Sprint" Hero.... Running My, *ExEnHeroC* Rom, w/Kifno's Twist, Also The XDA-BLUE.apk!! "Page 10" of My Thread!!
http://forum.xda-developers.com/showthread.php?t=957867
http://www.megaupload.com/?d=WTMLMK6M
http://www.mediafire.com/?bb1axugm0bw7oro
http://m.youtube.com/index?desktop_uri=/&gl=US#/profile?user=PMGRANDS
i had the same issue a few months back. i fixed it by charging it from a computer usb port (it will charge slower, but from what i've read thats actually better for the battery). I let it get to 100% and left it connected for a while longer, then wiped my battery stats. from that point on it seemed to report the proper battery level.
I noticed that the ac charge adapter would charge it to 100% way too fast, from 12% to 100% in like 10 minutes if the phone was powered off. i knew that wasnt possible, so thats when i did the usb charge / battery stats wipe, and it seemed to fix it for me.
Problem was getting worse, did ruu and re rooted and seems to be fine. Will report tomorrow after more testing.
Sent from my HERO200 using XDA Premium App
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
JanSpatschek said:
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
Click to expand...
Click to collapse
It's almost sure that you battery is degrading very fast. But its my advice to re-calibrate your battery. Set your screen brightness to max setting and leave it on until it shuts down. Now don't power it on. Leave it charging for around 2 and half hour.
Now install geekbench benchmark app and test your battery.
If you heard a pop noise, the battery probably delaminated/micro-exploded. (Li-Ion's tend to swell and fail from the heat of (over)charging.)
There's a company, newpower99.com, who has a YouTube video on replacing the battery in the HD+. The battery sold for $25 US last year, but now that our batteries are beginning to degrade, they're out of stock.
I found another site selling replacement batteries for $80. (portatronics.com)
I've noticed that my screen-on time has dropped from 6 hous to 5.5. Maybe the Nokia N1 will be available and rooted by the time I hit 3 hours.
JanSpatschek said:
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
Click to expand...
Click to collapse
I'm having the same issues, and reading this reminded me of trying BatteryCalibration to reset the battery since my nook HD+ stock OS is rooted.
I had this problem several times before I installed CM. Usually, it happened when there was an update available, and when the Nook started to update, it factory reset itself.
Sent from my *unrooted* ZTE Zinger using the Tapatalk app.