Hey I've been noticing a weird problem with my nexus one. I usually charge it over night so by the morning it's at 100%. I rarely let my phone die completely as I'm in and out of the house all the time. so i charge it when im home. however i noticed that when it does die completely, my battery level will say 30% 40% charged and then it'll suddenly die while im using it. i downloaded a battery widgit as well to make sure it wasnt just the system's battery charge indicator. the widget will also say the batter is charged 30% 40% and then the phone will suddenly die. When i plug the phone in and turn it on, then the battery level will say 1%. this has happened to me on both the stock nexus one and now im using the modaco sense rom, and same thing. any insight on my mystery?
Try going into recovery and wiping the battery stats.
SiNJiN76 said:
Try going into recovery and wiping the battery stats.
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After wiping battery stats, charge the phone completely while it is off until the light turns green (this will take a few hours). This may solve the problem. I had battery issues too, but after doing this, it fixed it. Good Luck
so i tried both suggestions; wiped the battery stats in the recovery. and charged phone to full. tried it out for 3 days. and no results. my battery level indicator is still inaccurate. any suggestions?
So I was trying to calibrate my battery using these instructions http://forum.xda-developers.com/showthread.php?t=980405&highlight=battery+life (I used the second set of instructions). However, when I tried to wipe my battery stats through recovery, I didn't see any scripts run to tell me the command had gone through. Is this normal. Thanks in advance
its me again
hey guys. Its me again. So an update on the situation. I drained my battery and believed that I had wiped battery stats but to my surprise when i was going to go recharge my phone I discovered that my battery was not fully drained as i previously thought. In the lock screen, I saw that I had 20 percent remaining. I am running faux123's nexus aosp rom version 1.2.7. Please help guys, i really don't know what to do
Its been running smooth just recently installed it today early morning.
my battery was approximately at 60 percent then suddenly the battery level dropped to 5% what could had been the cause?
try a free app from the market called battery calibration and see if it helps.
are you on 111123 or greater? it solved most of my battery problems.
Same battery drop problem here. But in my case the drop is not such big as in crlx´s case.
My Defy battery drops mostly from ~35 to ~20%.
I`d already erased dalvic cache and batterie stats but nothing changend.
So i want to know if this is a known/common bug in the RC and if there is a solution for it.
Thx
Hello, i'm currently with quarx CM10 last build (2 nov). First time i installed it i noticed it help A LOT with battery consumption.. from 12 midnight till 10 am from the other day it went from 99 to 97... that is.. like a miracle. then i did something stupid.. i used "battery calibrator" and it ruined it. Today it wen from 12 to 10 am in the morning with 99 to 60 then 49 (typical battery jump)...
I repeat, it's in the night, were wifi is off, refresh is off and nothing (that's what i'm planning to discover) is running or updating.
I attach some screens.
1) first install of the new rom. you can see it sleeps like a baby.... plain.
2).. goes down.. and down... even though i'm not using it.
any comments, help or suggestions? thanks in advanced!
missgothika said:
Hello, i'm currently with quarx CM10 last build (2 nov). First time i installed it i noticed it help A LOT with battery consumption.. from 12 midnight till 10 am from the other day it went from 99 to 97... that is.. like a miracle. then i did something stupid.. i used "battery calibrator" and it ruined it. Today it wen from 12 to 10 am in the morning with 99 to 60 then 49 (typical battery jump)...
I repeat, it's in the night, were wifi is off, refresh is off and nothing (that's what i'm planning to discover) is running or updating.
I attach some screens.
1) first install of the new rom. you can see it sleeps like a baby.... plain.
2).. goes down.. and down... even though i'm not using it.
any comments, help or suggestions? thanks in advanced!
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Click to collapse
Make your phone recalibrate the battery. Follow the following steps:
1 Use the phone till you have 10% or less battery left.
2 Wipe battery stats from 2ndinit recovery.
3 Boot into CM10.
4 Charge your battery to 100%.
Doing this will make the phone generate a new battery stats file and should solve your problems.
krushnam said:
Make your phone recalibrate the battery. Follow the following steps:
1 Use the phone till you have 10% or less battery left.
2 Wipe battery stats from 2ndinit recovery.
3 Boot into CM10.
4 Charge your battery to 100%.
Doing this will make the phone generate a new battery stats file and should solve your problems.
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Click to collapse
i'll try that. but already done it when installed the last build for the second time. i do wipe cache / dalvik / batt stats then flash ROM and all over again with the wipes.
missgothika said:
i'll try that. but already done it when installed the last build for the second time. i do wipe cache / dalvik / batt stats then flash ROM and all over again with the wipes.
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If you've uninstalled your battery calibrator app or if you've not used it after the wipe, then you shouldn't have any abnormal battery drain...
If wiping battery stats doesn't work, then most people recommend reflashing the ROM, but you've already done that, so you shouldn't have the battery drain now.
Just put your phone to sleep for a few hours, and let's see what happens after doing that.
This is what i did after seeing the sudden drop the other night:
- let it drain normal till the day finishes (at midnight, that's when i did the following)
- charged the battery to 100% and turn off phone.
- pull battery., connect charger to wall and recovery.
- install ROM without battery on. Wipe cache, dalvik, stats batt, install rom, wipe cache, dalvik and statts (again)
- boot into cm10, turn off screen and went to sleep.
- THIS morning, i saw it drained me up to 60 all night.
...
so as you can see.. i've already seen that after reflashing nothing has happened.
no, i didn't use again the calibrator.
missgothika said:
This is what i did after seeing the sudden drop the other night:
- let it drain normal till the day finishes (at midnight, that's when i did the following)
- charged the battery to 100% and turn off phone.
- pull battery., connect charger to wall and recovery.
- install ROM without battery on. Wipe cache, dalvik, stats batt, install rom, wipe cache, dalvik and statts (again)
- boot into cm10, turn off screen and went to sleep.
- THIS morning, i saw it drained me up to 60 all night.
...
so as you can see.. i've already seen that after reflashing nothing has happened.
no, i didn't use again the calibrator.
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Click to collapse
I'm not 100% sure, but as far as I remember, the battery stats gets generated while CHARGING a drained battery.
That's why you should drain the battery, wipe stats and THEN charge it to 100%. As it charges, the battery sensor detects levels (15, 30, 60 and such I think) and generates the battery stats based on these readings.
Afterwards, based on these stats, it generates a reading of battery drain, as the battery sensor itself senses only certain levels.
So, drain, wipe and THEN charge. Do this and let me know if the problem still persists.
krushnam said:
I'm not 100% sure, but as far as I remember, the battery stats gets generated while CHARGING a drained battery.
That's why you should drain the battery, wipe stats and THEN charge it to 100%. As it charges, the battery sensor detects levels (15, 30, 60 and such I think) and generates the battery stats based on these readings.
Afterwards, based on these stats, it generates a reading of battery drain, as the battery sensor itself senses only certain levels.
So, drain, wipe and THEN charge. Do this and let me know if the problem still persists.
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hmmm! never tried that!.. i was just charging it and it's in 90.. so i'll let it drain and tell you later thanks for that suggestion.
Still open to other comments though thanks to everyone who reads this.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Just read and engrave to your memory folks! Battery calibration never ever had a positive effect on the battery life and the battery usage shown in the android in-built "Battery Use"-app... and by the way, the stats are reset every time you unplug your nearly fully charged phone from the cable.
Hey, rather than blaming your battery stats I'd search for a process running all the time. Looks like something is keeping the phone awake.
The battery calibration IS A MYTH, as explained here, so don't waste your time wiping the values in Recovery. If you don't find any hyper-active processes with the following procedure, the drops might be related to a worn battery (I don't know how old your phone/battery is).
Open a terminal console and type:
$ top -n 1|head
(if you don't have Hacker's Keyboard installed and selected as Input Method you might need to copy and paste the line above, off course without the dollar sign).
Look at the processes listed as output and paste them here.
slimshady76 said:
Look at the processes listed as output and paste them here.
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Hola slim , thanks for answering. here's the screen
You had it coming since you are using Swipe... It's chewing up your CPU, and consequently your battery. Search the site. Off the top of my head I think it was a common issue.
slimshady76 said:
You had it coming since you are using Swipe... It's chewing up your CPU, and consequently your battery. Search the site. Off the top of my head I think it was a common issue.
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Swype? really?? shoot.. i love it.. even though i don't use it that much. Searched a bit but couldn't find much. Gonna try freezing it and see what happens. thanks.
Finally i managed with your help to accomplish some good sleep! here's the screen. i think it's awesome, never ever seen this.
thank you!!
we'll see if it gets better.
There's an interesting lesson to be learned here: if no deep sleep can be achieved, don't blame the ROM, and look for a stubborn process which refuses to stop when the kernel tell is to.
Hi everyone! I'm running the latest Lineage 15.1 on my 32GB Aluminum 6P and I just replaced the battery(about time as I was dying at 90% lol). Now after leaving the battery all night to charge(Was 81% went I went to bed) I woke up this morning to it still. at 81%. I've wiped battery stats, I've tried different cables and blocks. It just refuses to go past 81% the battery I got is performing as expected however it is 100mAh more than the stock battery which I suspect may be the issue.
Has anyone else had this problem or know of another way to fix it?
Solved: For some reason you must also wipe cache for it to charge fully. So make sure you wipe both /data/system/batterystats.bin and the cache partition. Charge with the phone off to 100% then let it fully discharge so that your stats are correct.
Mods please mark this solved