battery dies at 20%? - Nexus One Q&A, Help & Troubleshooting

hi i just recently upgraded to the modaco froyo rom. every time my battery percentage hits 20% the phone dies like its at zero thus making 20% unusable. ive wiped the phone, cache, and the battery stats. ive also drained it from 100-20 multiple times to recalibrate the sensors. any ideas?

ian1001 said:
hi i just recently upgraded to the modaco froyo rom. every time my battery percentage hits 20% the phone dies like its at zero thus making 20% unusable. ive wiped the phone, cache, and the battery stats. ive also drained it from 100-20 multiple times to recalibrate the sensors. any ideas?
Click to expand...
Click to collapse
call HTC and tell them you have a broken battery if you truly have performed all of these steps. You can try manually removing the battery stats first though. I forget where the file is or where it's located but you can search around, I'm sure you will find it.

The thing is I've been using the phone for a while and it just statlrted happening

ian1001 said:
hi i just recently upgraded to the modaco froyo rom. every time my battery percentage hits 20% the phone dies like its at zero thus making 20% unusable. ive wiped the phone, cache, and the battery stats. ive also drained it from 100-20 multiple times to recalibrate the sensors. any ideas?
Click to expand...
Click to collapse
ive noticed this at 15% thought it was a one time fluke (flashed a new intersect raven kernel yesterday before work) then it happened today i was going to flash back to the default froyo kernal and see if that did it but now im worried my battery might be screwed

ian1001 said:
hi i just recently upgraded to the modaco froyo rom. every time my battery percentage hits 20% the phone dies like its at zero thus making 20% unusable. ive wiped the phone, cache, and the battery stats. ive also drained it from 100-20 multiple times to recalibrate the sensors. any ideas?
Click to expand...
Click to collapse
Did this happen before you upgraded to Froyo?

Did you update the radio a long with froyo?
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Sent via the XDA Tapatalk App

I noticed that too when I intentionally let it run down to 15%, seems like its a fail-safe if you will of the phone to limit damage to either the phone itself or maybe the battery. I'm just guessing, but its not something wrong with the rom, it seems thats the cutoff point, I could be wrong though...

ian1001 said:
hi i just recently upgraded to the modaco froyo rom. every time my battery percentage hits 20% the phone dies like its at zero thus making 20% unusable. ive wiped the phone, cache, and the battery stats. ive also drained it from 100-20 multiple times to recalibrate the sensors. any ideas?
Click to expand...
Click to collapse
Yep, i have 2 ideas:
1) Read the forum rules
2) Post questions under Nexus One Q&A instead of Android Development.

Mod edit.: not dev related, moved to q&a

Effective Fix
Hey All,
I recently had the same issue with my S4 and I came across a very cheap but effective fix. There is an app on the play store called "Real Battery" that scales your battery level down to the percentage it dies it. My phone kept dying at 30% so I set the indicator to 30% and it scaled my battery level so that 30% is my new 0%. It lets you know more accurately when your phone is about to die, so that you won't be fooled when your phone says it has charge. Check it out, its called Real Battery.

Related

Display + Battery level

Hello,
I recently got my nexus, and rooted only two days after receiving it. I installed cyanogen's latest. I am getting low battery; in only 5 or so minutes, the percentage goes down by at least 2 percent (while using). I looked to see what may have been draining the battery, and found that the display alone was using 62% to 75% of my battery. I tried undervolting, but the display seemed to still be in the same draining range...
Is this a hardware related problem, or is this a common nexus thing?
ywindlass said:
Hello,
I recently got my nexus, and rooted only two days after receiving it. I installed cyanogen's latest. I am getting low battery; in only 5 or so minutes, the percentage goes down by at least 2 percent (while using). I looked to see what may have been draining the battery, and found that the display alone was using 62% to 75% of my battery. I tried undervolting, but the display seemed to still be in the same draining range...
Is this a hardware related problem, or is this a common nexus thing?
Click to expand...
Click to collapse
same here, really starting to piss me off when i see people talking about 70% battery at the end of the day while my phone dies in 6 hours
Cyan?
Woah, I think this might actually be cyan's Rom.
I flash enomther's rom and i got display percentage at around 15-16% ...
I think cyan will look into this soon enough...
But for now... I guess I'm gonna wipe... :/ and stick to enom's or some other ROM...
ywindlass said:
Woah, I think this might actually be cyan's Rom.
I flash enomther's rom and i got display percentage at around 15-16% ...
I think cyan will look into this soon enough...
But for now... I guess I'm gonna wipe... :/ and stick to enom's or some other ROM...
Click to expand...
Click to collapse
C´mon....see my signature!
More than 10h now, Wifi on all the time -> 70% battery
This is not that bad
rori1 said:
C´mon....see my signature!
More than 10h now, Wifi on all the time -> 70% battery
This is not that bad
Click to expand...
Click to collapse
I think the problem is only with a few people, but I know others are experiencing this. This might be something with the "latest" nexi. But idk, it's a mutual issue, a fix should be coming
Probably you are right...
But, I would like to know, what settings peolple use: like updating wheater every hour, emails, widgets,..ham many apps are running and so on, ... perhaps connected to...sometimes people dont even know that
Edit: I got my Nex in january.
The change in the display usage percentage is just due to the way the powermanager works. Its not using more battery, its just displaying how much power it is using more accurately.
have the same problem.
100% airplane mode ON no WIFI, in 5 hours 72% battery remains . (PHONE IDLE took most of this - my G1 could go 1 month with this settings)
IN 12 hours in was 6% and with LOW use of my N1.
Yesterday I removed numbers in my battery and it was a litle better, not much but a little. (about 8% better)
I had 5.0.5.1, 2 and 3 and everyone had the same problem!
CM please take a look at this. What do you need any LOG info or something!
Have you tried wiping battery stats, then charging to 100% with it off, then booting into recovery and wiping battery stats again, then charging to 100%? The few times I've had battery issues that's taken care of it for me.
I flashed cyan again with a wipe (again), but got the same thing.
On enom's rom, I get beastly battery. I think we just have to wait for a fix for the people who are affected.
danguyf said:
Have you tried wiping battery stats, then charging to 100% with it off, then booting into recovery and wiping battery stats again, then charging to 100%? The few times I've had battery issues that's taken care of it for me.
Click to expand...
Click to collapse
Do you need root to wipe battery stats? how do you do it?
Well I did the wipe battery about 3 times and in OS it was already green light 93% full.
I WIPED and put the power in on NON POWERED PHONE. It took 1 hour more to come to the green light . than I wiped again and went to boot up.
at 11PM i had 100% battery went into airplane mode wifi OFF.
And i did one other thing. Some of you had the battery drain issue with trackball wake. So I disable it.
7 hours of this and I got 97% - beautiful
before that I had 72% so there is a difference.
Now I have to see if the wakeup trackball is the cause of this or the wiping the battery stats.
Will eliminate one and other and keep you posted
I took my phone off the charger at 4:30am and the next day at 5:30 am i had 12% battery left. i used my phone a total of 3 times. most of the time it was on standby. i have setcpu with my phone UV and UC to try to save battery with profiles set up. in battery information 85% of the phones battery went to cell standby. Any suggestions on how to improve this?
Try wakeup trackball OFF in spare parts and battery % OFF in upper taskbar.
I have now from 100% to 59% in 7 hours. wifi ON all the time.
I have tried to wipe battery settings and charge fully with the phone off, but after the full procedure, I still get the same end result. I attached a picture of my battery usage.
Im pretty sure i saw a post online about the newer nexus's that were released having a better display. If this is true then wouldn't the phone's hardware alone be using more battery?
I can confirm I am having the same problem. I wasn't sure until I checked battery usage overnight. It used to be that with my phone on airplane mode I would use about 2% while I slept. Now, it's 9 or 10% with "Phone Idle" taking the lion's share of it.
I have tried deleting batterystats.bin after a full charge; powering off (while on charger); charging up to full again, but this has not solved the problem.
A few notes:
When the phone is idle (but not in airplane mode) it uses about 1.5% per hour (compared to about 1.1% in airplane mode)
I am using setcpu profiles to keep cpu usage right down when idle
Around the same time I upgraded to 5.0.5.3 I also started using the himem version of fastboot. And yes, if you suspect I don't know what I'm talking about here, you are quite right
For my next trick, I will try resetting battery statistics via recovery. What fun!
I've kept the cyan rom, and changed some settings to increase battery life. I turned off the battery percentage icon, and turned off the trackball to wake. I still got that the display was using a lot, but the battery still lasted pretty good. I guess there isn't too big of a problem on my side. It probably is the "newer displays" on the "newer" nexi. Maybe there really isnt a big problem
I changed now from CM to Enomther's TheOfficial Nexus1 1.8.1 and battery now works great.
I unplugged the charger at 12.00 am at midnight and with quite good use, not extremely havey but a good use I had 30% battery left at 20:00 (08:00PM) that day.
I lost only 2% from midnight to 7:00AM in my airplane mode and with Gmail check 10 min of phone calls wifi ON all the time checking web pages and showing off my live wallpapper at my work I had at noon (12.00PM) 70% battery left!
I LIKE IT!
now I'm thinking to push Kernel - .32 & .33 to see if there is any change with my battery
http://forum.xda-developers.com/showthread.php?t=653598
After resetting battery stats in recovery, I still lost about 10% overnight while on airplane mode.
For my next trick, I'll use a task killer like "Process Manager"* to keep everything unnecessary switched off overnight. Maybe I'll be able to narrow it down to an application if it's not something integral to the actual ROM.
*Yes, I know it will use up the battery too

[Q] YABPT (Yet another battery problem thread)

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)

Extreme Battery Drain

Hello, it's me again with problems. I have an extremely battery drain, even Juice Deffender can't handle on this. When I put the phone on charger, when he turns off after 0 % battery status, indicator shows me 50 % min after only few seconds on charger, and it's fully charged for half an hour maybe. When I turn on 3g and connect to Net, from 100 % to 0% is ONLY 15 min ?!?! I have cm-7-20120812-NIGHTLY-cooper ROM, but when I had offical 2.3.6, it was the same problem. Can I check some-how what is the problem- software, calibration or battery? I did a few calibration without any success. I'm really sorry on my very bad English. I will be grateful if anybody can redirect me on the right topic. Thanks in advance
3G eats a huge battery. I would not expect anything nice from it. But seems that your problem is a bit more problematic. How long do you have your phone?
Make sure you are charging your phone until its actually full not just when it says 100% look here for more details:
http://forum.xda-developers.com/showthread.php?p=28658849
Did you try wiping battery stats in CWM or recalibrating it?
I've tried wipe stats with Battery Calibration, and with CWM wipe battery stats. I've tried different ROMs, DroidACE, official 2.3.6, cooper nightly ROMs, and all of them have same problem. I've noticed that the battery is a little thicker in the middle, before it was flat, and now is a little convex in the middle. I've tried also discharging and charging for a 5+ hours, didn't help me. literally be emptied by 20 min of Use
wabafet89 said:
I've tried wipe stats with Battery Calibration, and with CWM wipe battery stats. I've tried different ROMs, DroidACE, official 2.3.6, cooper nightly ROMs, and all of them have same problem. I've noticed that the battery is a little thicker in the middle, before it was flat, and now is a little convex in the middle. I've tried also discharging and charging for a 5+ hours, didn't help me. literally be emptied by 20 min of Use
Click to expand...
Click to collapse
Sheesh guys. Battery Calibration doesn't affect battery life on your phone. It's just for accurate readings -_-"
wabafet89 said:
I've tried wipe stats with Battery Calibration, and with CWM wipe battery stats. I've tried different ROMs, DroidACE, official 2.3.6, cooper nightly ROMs, and all of them have same problem. I've noticed that the battery is a little thicker in the middle, before it was flat, and now is a little convex in the middle. I've tried also discharging and charging for a 5+ hours, didn't help me. literally be emptied by 20 min of Use
Click to expand...
Click to collapse
Yeah man, Ive got the same problem.
If I charge it for about 3-4 Hours, I get a max of 5 Mins or so, with Wi-fi on.
When the Battery is about 10%, and I put it to charge, It immediately says 99% charged.
I've changed 2 roms, and still no effect, infact, its got worse.
Even Juice defender (even the ultimate version) dosent work, Not even Underclocking.
I saw the battery recalibrating thing and Ive wiped the battery stats, still no use.
I think there's a problem with the battery itself?
Im just sick of it.
Alpha que said:
Yeah man, Ive got the same problem.
If I charge it for about 3-4 Hours, I get a max of 5 Mins or so, with Wi-fi on.
When the Battery is about 10%, and I put it to charge, It immediately says 99% charged.
I've changed 2 roms, and still no effect, infact, its got worse.
Even Juice defender (even the ultimate version) dosent work, Not even Underclocking.
I saw the battery recalibrating thing and Ive wiped the battery stats, still no use.
I think there's a problem with the battery itself?
Im just sick of it.
Click to expand...
Click to collapse
I also think that the battery itself has a problem, not any ROM. I'll go to service for a few days and I'll tell you about what was the problem.
wabafet89 said:
I also think that the battery itself has a problem, not any ROM. I'll go to service for a few days and I'll tell you about what was the problem.
Click to expand...
Click to collapse
Yeah, I suspect it is a problem with the battery.
Anyways, thanks man
If it's deformed, then your battery's life is over, that's it, get a new one.
You can try the freezing method to try and squeeze it for a bit of juice:
Charge to 100, Plastic wrap, in the freezer for maybe an hr (not too long), take it out, put it in your phone, charge it till it says fully charged, turn on your phone and check duration.
seems a deep sleep issue
Just abuy a new battery. I suggest a Anker branded one. Search a battery review topic at the Accesoires section. If you buy the Anker 1400mAh, your battery life will be even better than the original battery life. And Anker is trusted and cheap.
http://forum.xda-developers.com/showthread.php?t=1783344
I listened to your advice and bought a new battery, now I'll see what was the problem, battery or maybe hardware/ROM. I'm charging it now. Any advice how to charge new battery? Advice for scripts or ROMs? I'm going to use nightly cooper cm 7.2 and juice deffender. What about cm9 and this model?
wabafet89 said:
I listened to your advice and bought a new battery, now I'll see what was the problem, battery or maybe hardware/ROM. I'm charging it now. Any advice how to charge new battery? Advice for scripts or ROMs? I'm going to use nightly cooper cm 7.2 and juice deffender. What about cm9 and this model?
Click to expand...
Click to collapse
Since we're in 2012, I'm guessing it's a lithium ion battery.
Just plug it in and wait for some time (~15 minutes)after it reaching 100% to actually fully charge.
It would be best if you don't let it discharge below 20-30%.
Read more about lithium ion batteries by searching around the web for more info.
wabafet89 said:
I listened to your advice and bought a new battery, now I'll see what was the problem, battery or maybe hardware/ROM. I'm charging it now. Any advice how to charge new battery? Advice for scripts or ROMs? I'm going to use nightly cooper cm 7.2 and juice deffender. What about cm9 and this model?
Click to expand...
Click to collapse
So, How did it go?
Was there a problem in the battery?
or, is something wrong in the phone?
there was a problem in battery, I bought a new battery, not Samsung, but also has 1350 mAh capacity, and it's 2nd time on charging, life is about 2 days of using, average 2-3 h 3g, and playing games, half hour voice and maybe 30 sms and mails, and for me this is a very huge improvement from 15 minutes before death battery. Cheers, sorry again on my bad English
wabafet89 said:
there was a problem in battery, I bought a new battery, not Samsung, but also has 1350 mAh capacity, and it's 2nd time on charging, life is about 2 days of using, average 2-3 h 3g, and playing games, half hour voice and maybe 30 sms and mails, and for me this is a very huge improvement from 15 minutes before death battery. Cheers, sorry again on my bad English
Click to expand...
Click to collapse
Hmm, I did get slight improvement once i calibrated using another app.
But Im still getting a new battery
anyone knows why phone's display blink-up randomly? I saw that earlier, and I thought that was because of battery, but obviously, wasn't that. It's totaly random. And, I have another question, I've played with *#*#4636#*#* code, and sometimes phone can't receive or sent messages, except when preffered network type is GSM only and only after turning on and again off airplane mode. I have cooper cm 7.2 newest nightly ROM.
wabafet89 said:
anyone knows why phone's display blink-up randomly? I saw that earlier, and I thought that was because of battery, but obviously, wasn't that. It's totaly random. And, I have another question, I've played with *#*#4636#*#* code, and sometimes phone can't receive or sent messages, except when preffered network type is GSM only and only after turning on and again off airplane mode. I have cooper cm 7.2 newest nightly ROM.
Click to expand...
Click to collapse
I had the same issue when I was using Elegant white by TAZ.
But Then I flashed a fix for it.
I suggest you should too get in touch with the dev.
But first, flash the rom again.
Alpha que said:
I had the same issue when I was using Elegant white by TAZ.
But Then I flashed a fix for it.
I suggest you should too get in touch with the dev.
But first, flash the rom again.
Click to expand...
Click to collapse
Thank you. Anyone knows where is the official topic for cm 7.2 nightly cooper? I found one topic in development section, but at the end of it someone wrote that topic is closed on developer's request. And where I can find changelog? I saw that there is newest nightly update from 19.8. http://download.cyanogenmod.com/?device=cooper

"Wipe battery stats" destroyed my phone's battery?

Hi guys!
Here is yet another problem with my Galaxy Note...
Recently I've been changing/testing ROM's and after founding a good one, decided to put everything back, full charge and do a "wipe battery stats" in CWM.
I've found that wiping the battery stats is a bad thing... In the past, I've god 14-16 hours of power-on with 4-6 hours screen on time, and still got 5-10%. Now I've got a serious problem 12-14 hours power-on and only 3-3.5 hours screen on time and I'm already 1-3%.
Another problem is the phone that it's quite... possessed. After 3% battery the screen starts to flicker, the network goes from HSDPA+ to 3G or no signal and i've got a lot of LAG (i think that the processor is undervolted). Furthermore, when it drops below 1% it's instantly DEAD, no Samsung bye, bye sound, no vibration on close, NOTHING.
All those problems came after a "wipe battery stats"... What i am doing wrong? What's up with this annoying behavior?
1. I let it drain completely.
2. Charge it on the wall adapter, phone closed. (10-12 hours)
3. Boot CWM and wipe battery stats
4. Unplug charger and reboot android (normal use).
5. Let it drain completely and do another full charge.
What is wrong here? Is there any problem with my phone?
I've got an Galaxy S III, and have the same issues... after the "wipe battery stats" the battery lifetime got miserable.
khrystyan27 said:
Hi guys!
Here is yet another problem with my Galaxy Note...
Recently I've been changing/testing ROM's and after founding a good one, decided to put everything back, full charge and do a "wipe battery stats" in CWM.
I've found that wiping the battery stats is a bad thing... In the past, I've god 14-16 hours of power-on with 4-6 hours screen on time, and still got 5-10%. Now I've got a serious problem 12-14 hours power-on and only 3-3.5 hours screen on time and I'm already 1-3%.
Another problem is the phone that it's quite... possessed. After 3% battery the screen starts to flicker, the network goes from HSDPA+ to 3G or no signal and i've got a lot of LAG (i think that the processor is undervolted). Furthermore, when it drops below 1% it's instantly DEAD, no Samsung bye, bye sound, no vibration on close, NOTHING.
All those problems came after a "wipe battery stats"... What i am doing wrong? What's up with this annoying behavior?
1. I let it drain completely.
2. Charge it on the wall adapter, phone closed. (10-12 hours)
3. Boot CWM and wipe battery stats
4. Unplug charger and reboot android (normal use).
5. Let it drain completely and do another full charge.
What is wrong here? Is there any problem with my phone?
I've got an Galaxy S III, and have the same issues... after the "wipe battery stats" the battery lifetime got miserable.
Click to expand...
Click to collapse
What Rom are you using?
And it's not advised to completely drain your battery each time.
coincidence. Its not due to wiping battery stats.
http://forum.xda-developers.com/showthread.php?t=2027505
same symptoms, see my post end of thread
Sent from my GT-N7000 using Tapatalk 2
But why both at the same time?
Before the wipe, had no such problems...
khrystyan27 said:
But why both at the same time?
Before the wipe, had no such problems...
Click to expand...
Click to collapse
Coincidence. Unless you find more cases where this happens. According to pros, its a placebo anyway as it does nothing in itself.
Sent from my GT-N7000 using Tapatalk 2
Battery stats on these advanced batteries has no influence. The older batteries used purely software monitoring, the newer type has its own calibration control built in on a chip. Battery stats is only there for the older android handsets.
Sent from my GT-N7000 using xda premium
I don't think this is a conincidence...
The battery was good before i wiped...
How long have you had this battery?
Actually this maybe correct
Because its only after i wiped my battery stats and few days later slowly battery began to bloat
This maybe a clear co incidence not sure about it
Sent from my GT-N7000 using xda app-developers app
Phone purchase date xx.07.2012 (don't remember the exact day).
I am SURE that the "wipe battery stats" did this, but how to "RESTORE" back? Anything i did, no succes.
khrystyan27 said:
Phone purchase date xx.07.2012 (don't remember the exact day).
I am SURE that the "wipe battery stats" did this, but how to "RESTORE" back? Anything i did, no succes.
Click to expand...
Click to collapse
No way to do that! Android just wipe battery stats every time it find out that battery is fully charged by looking at its voltage!
Anyhow, you can always let your phone discharge, turn it off and let it charge in CWM until it reaches 100%, then again wipe battery stats and you'll recalibrate the battery manually!
Inviato dal mio panetto di burro powered by JellyBAM 1.2.0 + SlimBean kernel
Anytime you wipe battery stats, it'll take a couple of days to reconfigure off the batteries chips. That being said I've seen a lot of people with dud factory batteries and if it's under 6 months you can claim warranty with Samsung or whoever you bought it off.
Sent from my GT-N7000 using xda premium
also note, you probably wiped battery stats cause something was going on... anything happening after is more likely to be linked to the reason you wiped.
Anyway its a good question, cause if it has its own chip why would it need to consort with battery stats and take days to recalibrate? Then there is a dependency. Where there is dependency, there is chance of bugs.
I guess op could then be right.
However by reading Entropy and his comments on gauge and battery stats I doubt my second paragraph comment on its validity.
Sent from my GT-N7000 using Tapatalk 2
Wiping battery stats killing off the battery?
About the same chance as me scratching my hairy posterior, thus causing a tectonic cataclysm on Saturn.
chasmodo said:
Wiping battery stats killing off the battery?
About the same chance as me scratching my hairy posterior, thus causing a tectonic cataclysm on Saturn.
Click to expand...
Click to collapse
Isn't that a ***** ! I hate it when that happens :silly:
No... no issue, i just wiped the battery stats after installing a new ROM (i read many times that is strongly recommended to do this after a flash).
Suddenly, the next day i saw that it has a poor life, MUCH poor than before i did the wiping.
I don't think that the battery is damaged, i think this is a kind of battery level bug (it miss reads the information from the internal voltmeter).
Same **** with my Galaxy S III (10-12 hours power up with 2 hours screen time)
For me... I'm starting to regret the turn from iOS to Android...
We are starting to regret it, too...
Sent from Nexus 7
lol.
actually that could very well be the case, as it takes couple of days to get more accurate readings again
something to do with gauge. Entropy had a post about that a while back explaining just what you are seeing.
chasmodo said:
We are starting to regret it, too...
Sent from Nexus 7
Click to expand...
Click to collapse
lol I see what you did there
Sent from my GT-N7000 using Tapatalk 2
Gt-n7000/gt-s5670
Hey there, I've had the same problem with my N7000 battery. I've wipe battery stats and saw more devalued performance from the battery. Until finally I saw flickering of the screen before the phone "passed out"...without firstly powering down. Since then any attempt to charge or use the phone results in continual decreasing periods of use before passing out again, until finally nothing happens.
However when the phone is plugged in to charge. The battery icon comes one without and problem and proceeds to charge. The icon will say the phone is fully charged but it still cannot turn on, even to try to deplete the battery. I also attempted to put the phone in download or recovery mod and leave it there to try to use all the power after going back to check the phone after 15-30 minutes, I found that it either turned itself off by powering down, or simply turned off...I've since ordered some new batteries from Hong Kong, for only a few dollars...We'll see if they even work.
Thought I'd put in my scenario also.
Yeah. It seems to be the the battery problem.

[Q] Battery problem, drops to 0% randomly

I'm aware that this problem has happened to others, and I have seen solutions for this problem, but every fix I've come across works temporarily...and by that I mean a day or two.
While using my Atrix HD, when the battery reaches between 20-35%, the battery will suddenly drop to 0% and shut down. This usually occurs when I am using an app, such as MixZing or the camera app. Any attempts to turn the phone back on cause it to shut off again as soon as the boot animation finishes. The only way to keep it on is to plug it into a charger, and when it does boot, the battery shows the same percentage it had when the phone conked out on me. I've even tried calibrating the battery using NèMa's Battery Calibration app, and the problem still occurs...mainly because I can't get the battery to drain completely so I can properly calibrate the battery.
Long story short, I need a fix, or at least a suggestion as to how I can keep this problem at bay. Does anyone have information regarding this problem?
did you ever wipe the battery data when you flashing a new rom ?
I think you need to re-reconigz the battery .
lounew said:
did you ever wipe the battery data when you flashing a new rom ?
I think you need to re-reconigz the battery .
Click to expand...
Click to collapse
Agree. In cwm there is an option to wipe battery stats.
I had a similar problem with my HTC First where at 25 % it would go straight to 10 an then to 0 in like 30 seconds...although that was on stock rom...
Do you have the m40 battery mod from maxx?
Just curious
TecknoFreak said:
Do you have the m40 battery mod from maxx?
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Click to collapse
Just curious (I am new here, hi :3)
What is the m40 battery mod?
Sorry i ment eb40
http://forum.xda-developers.com/showthread.php?t=1906371
TecknoFreak said:
Sorry i ment eb40
http://forum.xda-developers.com/showthread.php?t=1906371
Click to expand...
Click to collapse
I don't use the eb40 mod, it's all stock hardware. Haven't tried wiping the battery stats, though; can't believe I overlooked that. I'll give it a shot and see if it does the trick.
EDIT: CWM doesn't seem to have an option for wiping battery stats for this phone; I've tried three versions and none of them give me that option.
MysticRhythms87 said:
I don't use the eb40 mod, it's all stock hardware. Haven't tried wiping the battery stats, though; can't believe I overlooked that. I'll give it a shot and see if it does the trick.
EDIT: CWM doesn't seem to have an option for wiping battery stats for this phone; I've tried three versions and none of them give me that option.
Click to expand...
Click to collapse
I suggest you first write down the current battery volume , for example , now in the system ,you can see 60% battery left .
then you shut down the phone , connect your changer , the phone will change and the battery volume show . if this volume is not equal to the No. you see in the system , it means that your system have a wrong battery data record .
lounew said:
I suggest you first write down the current battery volume , for example , now in the system ,you can see 60% battery left .
then you shut down the phone , connect your changer , the phone will change and the battery volume show . if this volume is not equal to the No. you see in the system , it means that your system have a wrong battery data record .
Click to expand...
Click to collapse
Shut down my phone, battery was at 91% (had charged it overnight). Plugged it in and the charging screen showed 90%. Is that what you were talking about, with the two battery volumes not being the same?
I think it's fixed!
I did a full system reset (including formatting the system, which I apparently had yet to do throughout all this time) to install a new ROM. Today the battery drained all the way down to 2% while I was browsing the web (something that normally would shut off the phone at around 30%) before shutting off. It seems that by skipping that crucial step, the system could not properly read/calibrate the battery when installing a new ROM, which may have caused this problem.
I think it's safe to say it's fixed. For now, at least, but I'm remaining optimistic. Thanks to everyone who pitched in with an idea or just said a few words; great to know people care around here.
MysticRhythms87 said:
I did a full system reset (including formatting the system, which I apparently had yet to do throughout all this time) to install a new ROM. Today the battery drained all the way down to 2% while I was browsing the web (something that normally would shut off the phone at around 30%) before shutting off. It seems that by skipping that crucial step, the system could not properly read/calibrate the battery when installing a new ROM, which may have caused this problem.
I think it's safe to say it's fixed. For now, at least, but I'm remaining optimistic. Thanks to everyone who pitched in with an idea or just said a few words; great to know people care around here.
Click to expand...
Click to collapse
I'm glad that you fixed it. I did the same but I still have that problem. When It's 20% it drops to 15% and then to 5% in 30 seconds.
Arjomer said:
I'm glad that you fixed it. I did the same but I still have that problem. When It's 20% it drops to 15% and then to 5% in 30 seconds.
Click to expand...
Click to collapse
Thankfully, I haven't had it drop that low that fast. Of course, this IS the Atrix HD, which carries such a weak battery compared to other phones in its class. Nevertheless, I feel great knowing that my phone doesn't shut off so unexpectedly. If it happens again, I'll do my best to deal with it, but for now...it's just success.
I had this problem after i force rebooted my phone, it got stuck at 1% when charging for almost 15mins. I had to turn the phone off.
MysticRhythms87 said:
Shut down my phone, battery was at 91% (had charged it overnight). Plugged it in and the charging screen showed 90%. Is that what you were talking about, with the two battery volumes not being the same?
Click to expand...
Click to collapse
for my understanding ,before you shut down the phont , you saw the batter volumes in system is 91% , and then you shut down the phont ,plug it in , and see the battery volume is 90% .I think in this situlation , the battery record in your system is correct ,cause 90% and 91% almost the same . I think your battery is dying , you should replace your battery
lounew said:
for my understanding ,before you shut down the phont , you saw the batter volumes in system is 91% , and then you shut down the phont ,plug it in , and see the battery volume is 90% .I think in this situlation , the battery record in your system is correct ,cause 90% and 91% almost the same . I think your battery is dying , you should replace your battery
Click to expand...
Click to collapse
Well, a couple weeks later and I'm still not having the problem. The battery does still drain relatively fast (I go from 100% at about 9:00 A.M. to 35% at 3:00 P.M, with minimal usage such as checking Facebook/Twitter and stuff like that), but that's mostly due to the small battery capacity. The battery health is still good according to the scans and hardware checks I've done. I may, however, look into trying the EB40 mod if it means the battery will last much longer.
MysticRhythms87 said:
Well, a couple weeks later and I'm still not having the problem. The battery does still drain relatively fast (I go from 100% at about 9:00 A.M. to 35% at 3:00 P.M, with minimal usage such as checking Facebook/Twitter and stuff like that), but that's mostly due to the small battery capacity. The battery health is still good according to the scans and hardware checks I've done. I may, however, look into trying the EB40 mod if it means the battery will last much longer.
Click to expand...
Click to collapse
did you ever try to flash a new rom , you can try , if the problem still there , there is no doubt that the battery is bad .

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