I never had this problem until recently i've flashed to Cog 4.
It started after i did a full charge. It discharges to 80% and to 50% and to 20% and to 5% and then died off within an hour. My phone heated up even though when it is not active.
Now, after changing a new battery. I find that i can't charge it above 85%. I re-flashed with Phoenix and Serendipity. The maximum charge still stays at 85%.
I've cleared the battery stats and nothing changed. I need help here.
You might find this thread useful
http://forum.xda-developers.com/showthread.php?t=806211
It has some discussion about cog and battery life, but I suspect it might be outdated. Either way, it should have good info for you on how to get the battery fully charged
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
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Dupontrocks11 said:
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
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yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
Trusselo said:
yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
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When I said custom roms i meant that when you are on something other from stock. And for the most part, unless you are on a minimalistic rom, you do get worse battery. It is a known fact. Sure I have gotten 50 hours out of a rom/kernel combination, but it was never consistent. I had to flash back to stock and masterclear because i have random shutoffs and need to return it, and im seeing easily 30 hours out of stock with 3 hours usage of web email phone. Maybe its not the same for you, but stock has had the best consistent battery life for me.
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Related
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?
Is it true that the porcentage of battery u have when u flash ur phone is the one that will be used as the new 100% ? also whats the procedure i should use to erase the battery stats? my phone dies in like 4 hours , let it discharge, charge completely and then?
I don't think so, cause i always flash my MS anytime i wish even when the indicator show <20%, or when charging on UBS
I also never bothered to charge fully before flashing. Though I think resetting battery stats does help indeed.
i also read something similar to this, someone told me to charge to full, then let the phone discharge UNTIL IT TURNS OFF BY ITSELF (=battery completely dead), then charge to full again and then delete the file batterystats.bin in /data/system folder (root required).
i suppose this is what you are talking about?
i will try this in a few hours (currently discharging the last % of my battery).
andreju said:
I also never bothered to charge fully before flashing. Though I think resetting battery stats does help indeed.
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Im confused im supposed era the stats before right after chanrging full charging the phone or i sould let it discharge m, then erase the stast and then full charge the phone?
What's your ROM?
On froyomod do you have option to calibrate battery and wipe battery status
Well, I've flashed it to FroyoRom with approx. 40% charge, played around a little, the next day when I was normally using it and my battery went down to 30% I deleted the battery stats, the system rebooted and voilla, I was at 50%
I don't know about this full charge - discharge - full charge - delete stats version. I guess I'll try it on an occasion and see what happens. At this moment I'm at 90% after being disconnected from charger for 5 hrs, though I wasn't using the phone much during this time.
...and currently finishing the same charge - after 1 day and 17 hrs currently at 20%. My Milestone never made it through the day without having to charge it through the night. Love it
The FroyoMod is really the best at the moment...
I'm not sure if this is a common problem or not but lately I've noticed that when I unplug my phone after it says 100% charged, it immediately drops to a lower number. At first it would stay between 97 and 99, but i have seen it go as low as 45. I've tried several things like not installing the ROM until it is fully charged, calibrating the battery, and a few others but nothing fixes it. Is it possible it's just a kernel glitch or hardware issue?
Darky's 10.2.2 DarkCore 4.1 KG3 modem
Thanks in advance all!
Edit: Spelling error
Sent from my Samsung Captivate using XDA App
Its not a problem its a feature. The phone will stop charging when the battery gets to a certain temperature. So it will say 100% but it can go as low as 90%. I have no idea why your battery goes down to 45%...thats not normal. Try wiping battery stats from recovery or reinstall your rom.
I've had a similar situation. It helped to fully drain the battery until the phone shuts off.
Wait a while, then restart the phone without plugging in the charger. There should be enough charge to load the ROM.
Then plug in the charger and charge to a full charge.
If you are calibrating the battery, wipe the battery stats only after a full charge, and then be sure to run the battery down all the way before recharging.
2-3 cycles helps.
It's strange because the charge is shown accurately when the phone is off and plugged in. Like if it says 100% while the phone is on and I shut the phone off without removing the charger, it will show the actual amount the battery is charged on the battery meter. it's as if the kernel is having a problem reading the current battery state.
Thank you both for the advice though. I was very careful to install the rom with a full charge this time..or the base anyway..
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It doesn't matter what the battery is at when you flash, the "flash at 100" rule is just a precaution to make sure your battery doesn't die mid flash. I flash as low as 20%
That is a well known bug with gingerbread...yes the feature stops charging at 100 and us let drain to 95 and then starts charging again, the bug is that it Bebe starts charging again at 95 it continues to drain, so even though it says charged as Dijon as you unplug it drops to the actual percentage.
it's really random, and not everyone sees it, and those who do can't replicate it consistently, thus no solid fix has been found.
Some have said turning wifi off while charging helps, some say turning it on...
Well that's a relief. You just saved me the tedious task of fully
Charging my phone before flashing back to froyo. Darky's 9.5 seemed a lot easier for daily operations than the reoriented gingerbread roms. I had to remap my softkeys for starters, and was having a lot of force close issues with apps I used a lot, the battery problem was just the most recent headache.
Thanks for all the help. Hopefully I'll have time to start learning development instead of wasting my time fixing my phone.
Sent from my Samsung Captivate using XDA App
Hi,
I am trying to do the battery calibration piece but my phone never reaches 100% when the phone is off i charged it for almost 3-4 Hrs.
can some one help me?
New battery, like $10
i have two batteries now still i see the same issue, it started once i moved to GB Roms, before it was pretty good.
It is normal between 96% and 99%.
Is it normal to not reach 100% when i turn the phone off and charge it?
kethireddy said:
Is it normal to not reach 100% when i turn the phone off and charge it?
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There has been talk about this occurrence before, but basically it's a battery-life saving feature of Gingerbread. Rather than hold your battery at 100%, which will decrease the battery's life, it charges to 100%, lets it dip down to a certain threshold (like 90%, for example), then recharges again.
That's my understanding, anyway.
jmtheiss said:
There has been talk about this occurrence before, but basically it's a battery-life saving feature of Gingerbread. Rather than hold your battery at 100%, which will decrease the battery's life, it charges to 100%, lets it dip down to a certain threshold (like 90%, for example), then recharges again.
That's my understanding, anyway.
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kethireddy said:
Is it normal to not reach 100% when i turn the phone off and charge it?
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Like jmtheiss said t's a GB surge protection not to overcharge the battery. It's a feature not a bug
does this mean we can do battery calibration on GB roms?
kethireddy said:
does this mean we can do battery calibration on GB roms?
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Yahh, that never changed.....
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Two things regarding Battery Calibration :
1. For Better Battery Life : Always charge upto about 90% and use. Recharge when you reach 10% or even less. This will tremendously increase the life span of Li-Ion battery.
2. As regard to 100% charging :
(i) Boot to CWM, wipe battery stats.
(ii) Reboot and charge until 100%, Disconnect from charger
(ii) Power Off and connect charger again. Charge until 100%
(iii) Boot to CWM, wipe battery stats again.
(iv) Power on the phone and charge until 100%
Done.
Repeat the same, if you wish to re-calibrate the battery after some time.
Tip: Always re-calibrate battery and charge to 100% before flashing any ROM.
ROMMaker said:
Two things regarding Battery Calibration :
1. For Better Battery Life : Always charge upto about 90% and use. Recharge when you reach 10% or even less. This will tremendously increase the life span of Li-Ion battery.
2. As regard to 100% charging :
(i) Boot to CWM, wipe battery stats.
(ii) Reboot and charge until 100%, Disconnect from charger
(ii) Power Off and connect charger again. Charge until 100%
(iii) Boot to CWM, wipe battery stats again.
(iv) Power on the phone and charge until 100%
Done.
Repeat the same, if you wish to re-calibrate the battery after some time.
Tip: Always re-calibrate battery and charge to 100% before flashing any ROM.
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i am trying to follow these steps but my phone never reaches 100% @ the third step i have been charging it for 3 hrs..
Which ROM are you using? Because I know some ROMS have specific issue with battery charging. Please let me know
ROMMaker said:
Which ROM are you using? Because I know some ROMS have specific issue with battery charging. Please let me know
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I was using MUI GB rom
kethireddy said:
I was using MUI GB rom
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As I fiddled around with most of the ROMs out here in XDA, would suggest you to flash a KK4 build like Serenity or Illiminance, if you want a stable GB ROM. KK4 is the latest captivate GB leak and the ROM is awesome. Also, the ad-hoc wi-fi through modifided wpa_supplicant works in this build. The ROM is fast, stable and got good battery life. Try to flash the ROM and I'm sure you will get a great GB ROM without troubles.
Hit thanks, If I helped you out
Try charging with screen on. You'll hit100.
mrhaley30705 said:
Try charging with screen on. You'll hit100.
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with screen on i am able to hit 100 but to calibrate arn't we supposed to get it with phone turned off.
Okay, I know this won't improve battery life in the end, But is it good to run one of those apps after doing a fresh ROM wipe? I know that if you don't, It can report false battery readings and cause it to appear to be dying faster than normal, etc.
What's a good app to use? Is it worth doing, or even needed?
Most if not all recoveries have a battery stats wipe included. Some ppl recommend doing it every time you flash a new ROM, but that's overkill and completely unnecessary. Certain ROMs will even just calibrate it themselves. I haven't noticed an improvement using it on either of the devices I've used, but if it makes you feel better charge it all the way, turn off the phone, replug the charger until the LED goes green again, boot into recovery, wipe battery stats and then let the battery discharge ALL the way.
Sent from my HTC PH39100 using xda premium
Also, as soon as your battery reaches a 100% the android os is supposed to wipe the battery stats...so if you flash on a full charge there is no need, even if you don't flash on a full charge...just charge it to a 100%, maybe do a reboot and charge again to make sure...
I've never done a battery stat wipe in my life, (well actually I've done a few back on my infuse in the begining of my flashing days) anyways...Ive pretty much never done battery stat wipes and I've never had any issues with battery readings, not on my vivid and not on my infuse...and sometimes I flash when I'm down to 15%!!! I only do that cause I'm confident I could fix a brick from a bad flash...
Sent from my HTC PH39100 using Tapatalk 2
Wiping your battery stats is like throwing salt over your shoulder when you spill some. It's a superstition.
All the battery stats file does is keep track of which apps are using power and for how long (ie what's displayed on the Usage screen in the settings menu).
But you don't have to take my word for it... Google says so: http://www.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
[HTC Vivid] My battery life suddenly decreased by 60%. I know this thread is old as hell but figured out the problem for myself... The orange LED indicating a charge (or even the software) will say charging when it's not. I realized my charger was only halfway in the power strip.. turns out the outlet or cord was bad still not sure but yea.