Hi all. I'm using Miui rom 1.6.17.1. i installed it without charging the phone fully and now my battery life sux :-\
So i turn my phone off and try to charge it for caibrating in CWM but it turning on once i plug the charger....
I understand thats it a known issue, so how can i do this thing?
calibrating in miui? i would say its impossible
when my charger is pluged in an i restartmy phone then spring the percentag from 40 to 55
sad ... same here ... but you may try to let your phone to complete discharging battery, until go off ... and after that charge it 100% without using the phone and clear battery statistics from cwm.
Well...may be it was stupid thing to do but i flashed froyo back on...calibrated and than flashed miui with 100%
well ... your battery will still suck...cuz its cm7 base..which has battery drain
cm7 <3
Yeah...thats a problem, but i'm in love in miui
The latest cm7 should have addressed it already.
I was in the same situation as you, battery only lasts 6hrs on any given day.
My battery now lasts more than a day even on moderate use n 3G on all day. I initially rest the battery stats then performed a full power cycle.
Now when I upgrade between miui versions, I always ensure that the battery is 100%
Sent from my GT-I9000 using XDA Premium App
may i know how to calibrate battery ?
i m in miui rom
You can't calibrate the battery properly in MIUI as it is supposed to be done with the phone off, MIUI or rather as someone else has mentioned its down to CM7
It can't charge the phone with it switched off because I believe CM7 is based on the Nexus and the Nexus cannot charge with the phone off
I could be wrong though, but the above is what I have gathered through reading about it
tcboy88 said:
may i know how to calibrate battery ?
i m in miui rom
Click to expand...
Click to collapse
I flashed froyo rom, calibrated normally and than flashed miui again :-\
suhoy119 said:
I flashed froyo rom, calibrated normally and than flashed miui again :-\
Click to expand...
Click to collapse
Can anyone confirm this successful? I have horrible battery life in CM7 and am wondering if this is a legit option.
Market: batterycalibrating
Iam on galnet miu 3.2 with neo 10 Kernel uv. Jv6 Modem.
21 hours since last charging and 32 % left.
3g on, sync on, calls 1 hours, 70 sms, some surfing and some doodle
Could be useful to post someone batterystats.bin from a phone well.calibrated?
Sent from my GT-I9000
Here you go.
http://www.4shared.com/file/tN3LK_kV/Copy_of_batterystats.html
Rename to batterystats.bin
Related
Happy new Year to everybody!!!
I'm having a strange battery drain issue with my phone...
Since I flash Darky's v7.6 I start having this problem-maximum 14 hours battery life without playing or using heavy apps
Before I get 26-30 hours in the same use
I flash 7.7 (both wipe and no-wipe) but problem stays.
Factory reset for sure 6 times until now.
Change kernel to Speedmode but the same
Battery calibration been done more than 10 times without result.
I flash v7.0 now and still having the same isue!!!
It's very annoying
Can anyone help me please?
Its the firmware JPY. Wait for a fix, go back older firmware or turn off wifi.
Sent from my GT-I9000 using XDA
Wasnt JPE out? hows that?
_JKay_ said:
Its the firmware JPY. Wait for a fix, go back older firmware or turn off wifi.
Sent from my GT-I9000 using XDA
Click to expand...
Click to collapse
So you mean JPY is a battery killer?
Happy New Year!
I've had JPU, JPX and now JPY. Somewhere in between I had XWJPH which is the official 2.2 for my device (HKDCOS). The 2.2.1 firmwares have almost the same battery life as the official 2.2 while being much much faster. They all have more bat drain than my eclairs (JM2, JM9) but not dramaticaly. I can make 40-48 hours on 2.2.1 normal use, and I did 48-60 hours on eclair. I think it has to do with what apps you use. Do you have battery stats?
Ρε ΠΑΟΚτσάκι άρρωστο από την Κρήτη,εσύ είσαι;
O.K. let's see...
Last night I let it charge untill the "100% charged notification" sounds.
Unplug charger,wait 30-40secs and plug it again.In order to be sure for maximum charge depentless battery icon.
I forgot to deactivate wi-fi(although I think energy consumption is the same) and 10hours later battery icon shows 93%.
Battery stats was almost zero,exept Wi-Fi On(99.9%) and Wi-Fi Running(99.9%)
I thought "desent amount of energy consumption" and then I only used the browser for 15'-20' and battery icon dropted from 93% to 88%!!!
2 days ago,I installed autokiller in order to switch off background apps-just in case that any of my installed apps consumes energy.No result at all....
[email protected] I'm running over JPY for over 2 weeks and had completly no prob at all-just as tsinc sais,I manage to get more than 24H in normal usage
Problem started since 7.6 Darky's been flashed
Then,I flashed 7.7 no-wipe,7.7 wipe,7.0,7.5 and still no problem solved...
And I get tired from continuesly tries of re-customize of my Galaxy
Samsung have changed the WiFi driver for the 2.2.1 Firmwares. As I was on the JPY I had this huge battery drain too. So I decide to take WiFi driver from JPA. They work but I have first to test if this really give me less power drain.
Sent from my GT-I9000 using XDA App
Mparmpa-Nikos said:
Ρε ΠΑΟΚτσάκι άρρωστο από την Κρήτη,εσύ είσαι;
....
I forgot to deactivate wi-fi ....
And I get tired from continuesly tries of re-customize of my Galaxy
Click to expand...
Click to collapse
Όχι φίλε αλλά δεν πειράζει
I'm not using Wifi cause I have an "unlimited" (=3GB) data plan. Wifi drains a lot on 2.2.1. I think "hardcore" or somebody started a thread about it.
I'm also tired of flashing and resetting.... Any news about 2.3 ?
I did flash the jpa wifi drivers dosnt seem to affect drqin too much...
Sent from my GT-I9000 using XDA App
I`m using Darky`s 7.5 and the phone has been unppluged 51 hours ago and i still have 38% of battery, although the battery i got with the new SGS i recieved from orange is way better than my other SGS, it last for 4 days with modderate usage, and it should get better as it is new and it has to get a few charging cicles to increase battery life a little bit more. The usage is the same as it was on my other SGS, music, movies, internet, mail, messenger, calls etc.
I`m using Darky`s 7.5 and the phone has been unppluged 51 hours ago and i still have 38% of battery,
Much the same for me on that version but later versions enormousness battery drain . Different rom battery drain about normal .All JPY .
jje
I have it too on JPY now. Strange thing is that everything was good for like a week after flashing, but then suddenly battary started to loose charge like a madman. Dunno, may be it's a Skype that i have installed recently, but i dont launch it and the drain is still there.
I've been looking at youre battery stats and it said its been 26 hours since last unplugged I still have 20% battery left, it also says the the phone wasnt sleeping fot 11 hours out of the 26. What could cause this?(the screen was one for like 1/2 tops
Sent from my GT-I9000 using XDA App
So I bought the official Motorola extended battery. I've followed ever freaking guide there is to resetting the battery and all. I still have issues with my battery, multiple roms, wipes, resets haven't helped. I unplug my charger at 7am, by noon I have 10% or less left. It stays low till it turns off sometime the next day.
What am I missing.....
That's very odd.
I know that you stated you had already tried a battery wipe, but just to be careful:
Charge to 100%
Let it run completely dead
Charge to 100% without turning the phone on
Wipe Battery Stats
Also, there's more information I need to post here, and what rom are you using?
Sent from my DROIDX using XDA App
I'm running MUI, latest build. I don't think it will charge with the phone off will it? On this rom I mean.
the 2nd Init ROMs won't charge while off. You should try putting up with a stock ROM for a day while you troubleshoot the battery. If you can correct the issue using the above method you should be gtg. Once it's fixed install MIUI on a full battery and do a battery wipe.
Ok so I flashed back to Libery .9. Charging from fully dead now while off.
zehkaiser said:
the 2nd Init ROMs won't charge while off.
Click to expand...
Click to collapse
Why not? It is nice to have always-signal available though
The miui rom drains the battery quite fast I have the extended life and I get about a day with miui. when I switch to cm7 I get about 3 days its the rom itself unfortunately
Sent from my Xoom using XDA Premium App
It's the roms more than likely.
rocko73 said:
It's the roms more than likely.
Click to expand...
Click to collapse
Not sure what it was, I sbf'd, updated to the latest greatest and it still didn't work. Gave up on it, bought a Bionic when it came out
I have LG GT540 with android 2.3.4 cyanogen and the battery is just getting drain to fast ( its new battery) .when i go to battery use i saids that android system use 99-100% of battery waht its not normal ( my friend has about 7-8% use) and she last for 1-1.5 hours with normal work ,in idle about 4 hours till battery drops dead. Phone is getting to hot , i tryed to put others 2.3.7 and its same again what sholud i do.
solution i tryed: wipe battery stats -didnt help
going from 2.3.4 to 2.3.7 -didn help
PM me to see pic cuz i am new here so i cant post outside links at the moment.
Did you wipe data when updating to 2.3.7? If not, try it (maybe also without restoring stuff from backup, if wiping+restore does not help)
yes i always wipe data/cache/dalvik cache so tahts not issue,can i format SD card is she a problem maybe?
yeah same for me i am also using a rather new battery
The battery level stays on some percentages longer than others.
Sent from my GT540 using XDA App
yeah our phone is not so accurate my sisters sensation xe shows every 1%
bs828 said:
yeah our phone is not so accurate my sisters sensation xe shows every 1%
Click to expand...
Click to collapse
Same with my friend's LG Optimus 2X. Any solution?
Sent from my GT540 using XDA App
This may sound stupid but works
Charge it to 100% wipe the battery stats let it drain out then recharge it to 100 let it drain out again and then carry on as normal i do this before and after each rom and clear the stats etc before releasing each softmod my battery lasts on average 2-3days thats texting and 4-7 phone calls maybe abit of radio and checking email 4-5 times
Sent from my tf101 using xda premium 1.54Ghz
Danzano said:
This may sound stupid but works
Charge it to 100% wipe the battery stats let it drain out then recharge it to 100 let it drain out again and then carry on as normal
Sent from my tf101 using xda premium 1.54Ghz
Click to expand...
Click to collapse
I did that many times but without success ,my battery is dead with 1-2 hours of use
Sent from my GT540 using xda premium
1-2 is realy extrime, try wiping data and see how long it last without anything installed. If it still 1-2, there is hardver problem.
Hot phone can be inditcator of cpu or motherboard problem. :-\
Sent using Tt.
markanzyxel said:
I have LG GT540 with android 2.3.4 cyanogen and the battery is just getting drain to fast ( its new battery) .when i go to battery use i saids that android system use 99-100% of battery waht its not normal ( my friend has about 7-8% use) and she last for 1-1.5 hours with normal work ,in idle about 4 hours till battery drops dead. Phone is getting to hot , i tryed to put others 2.3.7 and its same again what sholud i do.
solution i tryed: wipe battery stats -didnt help
going from 2.3.4 to 2.3.7 -didn help
PM me to see pic cuz i am new here so i cant post outside links at the moment.
Click to expand...
Click to collapse
First of all swiftdroids battery is only supposed to last 1 day.. so use a differnet rom. Secondly check that ur CPU is on ondemand not performance .. cause sometimes u get the rom like that.
Sent from my GT540 using Tapatalk
what worked for me
Hi
I wanted to thank for Zoe Rom on its thread, but i cant write on developer's threads yet (altough i clicked thanks button there).
Im glad i finally got rid of my memory hogging default rom and now i have a properly working phone again!
Also i wanted to reply there (to some people also complaining about battery endurance on GT540 on Zoe Rom) how i fixed my battery main problem.
Pic of current battery drain:
http://postimage.org/image/d8o8uusd7/
As you can see i am aproximatelly at 50% battery after 1day and 11h of not charging.
I had 2 problems:
1- Battery lasted aproximatelly 5 hours on standby (and i mean i wouldnt even touch the phone and the battery was gonne after that time)
2- During intense battery drain usage, the battery was reporting to have less energy than what it actually has.
1st problem solved by simply turning off the wireless after im done with using it. No idea how could that be taking away so much energy, but it was. Somewhere during the period i was using my default rom i got used to have wireless always on, and my battery on the later times was going away faster than normal (i also like to listen to music on the phone). At the time i didnt correlate the 2 things, and i just put in my head that it probably was the battery dieing on me. It wasnt! The wireless (i suppose because of the Sync function also being on) has been draining my battery like mad between charges.
2nd problem persists. As you can see on the pic, those 2 spikes down correspond 2 diferent aproximatelly 1 GB file wireless transfers with Wifi File Browser app. This transfers (PC->Phone) make the phone CPU have to unzip the two 1GB files to the SD, so they are very CPU and SD card read/write intensive (i can force this battery drops with other instense battery use like playing a 3D game for example). The thing is if during that temporarly drop on the battery level measurement, the level hits 5%, the phone will shutdown. But to be honest, this problem is minor comparing to the 1st one.
There is one other minor problem with my battery, wich is the reading being inconsistent (drops 10%, then gains 15% then drops 5% again etc), but is this a problem at all?
I read a post of a guy that had made extensive testing to his battery cycles, providing loads of graph of battery levels (cant find link) . I didnt read through all of it, but i remember the guy saying something in the end like "Dont be too paranoid with your battery levels, as they arent accurate. Instead use your phone normally and you will gain an idea of how long will it last with certain types of usage"
By the way, he also said for people to just charge their battery whenever they could/wanted as it has no negative impact on battery life. I also read a bit of a paper on lithium-ion batteries stating the same, so no more forcing full-discharges for me!
One last thing! Deleting the batterystats file is as simple as disconnecting your phone from the charger.Why? because that file serves solely the purpose of suplying the UI with info of the battery drain usage on the current battery cycle.
http://www.xda-developers.com/android/google-engineer-debunks-myth-wiping-battery-stats-does-not-improve-battery-life/
And you can confirm this if you unplug your phone while looking at yout battery stats.
I hope this helps
PS: pls notice that it could have been not the wireless itself that causes the battery drain, but some service using the wireless. Finding this would require more extensive testing.
zedshot2 said:
PS: pls notice that it could have been not the wireless itself that causes the battery drain, but some service using the wireless. Finding this would require more extensive testing.
Click to expand...
Click to collapse
Nice review! Excellent and 100% Trustfully :good:
Danzano said:
This may sound stupid but works
Charge it to 100% wipe the battery stats let it drain out then recharge it to 100 let it drain out again and then carry on as normal i do this before and after each rom and clear the stats etc before releasing each softmod my battery lasts on average 2-3days thats texting and 4-7 phone calls maybe abit of radio and checking email 4-5 times
Sent from my tf101 using xda premium 1.54Ghz
Click to expand...
Click to collapse
Some people says that this does not work, but it worked for me. This procedure extended m battery life from 5h to 2 days..
Update
Hello again
I just wanted to give an update on the situation since i noticed this post is linked from the Zoe Rom thread.
Two days ago i bought a new battery, an unbranded one (cost me 15€ here in Portugal). The shop had a legit LG battery for 37.50€ but i tought it wasnt worth the money. This battery has the same specs as the original, except it is 1300mAh compared to the 1500mAh of the original.
I dont have any battery related problem any more. Yesterday i woke up (100% battery), unplugged the phone, let the wireless on all morning, listened to 2-3 hours worth of tunes, browsed the web a bit, tested some messaging apps etc. Today i woke up, didnt charge during the night, and im sitting on 45% battery. Wish i had gotten a new battery sooner lol
With my old battery the phone wouldnt shutdown. It would always automatically restart. I had no ideia a malfunctioning battery could cause this.
I've have had similar problems with the battery on my GT540 with all cyanogenmods - 2.3.7, 4.0.4, 4.1.2. There were no such problems with original 2.1 I think it is the price for the newer versions, I can live with that, I don't have to buy new phone
Same here...battery draining very fast....tried near about 10-15 roms...bt almost same rslt
Sent from my LG-GT540 using xda premium
winkle_sharma said:
Same here...battery draining very fast....tried near about 10-15 roms...bt almost same rslt
Sent from my LG-GT540 using xda premium
Click to expand...
Click to collapse
It's normal after a couple of month of use, depends how many times you discharge your battery, remember...battery life it's very short on smarthphones.
lg gt 540 battery
Hi
I ve got LG GT OPTIMUS 540 android version- 2.1 and i have the same problem. If i dont use my phone batery can be dead in 5 hrs but if i use it 2-3hrs...my phone battery usage says android system eats 95%...is it norm or bad?
im running the stable cm7 release and my battery life is terrible. i followed the guide on the forums here on fixing your battery life, charging to 100% pull battery put back in instal battery fix etc and overnight (short 5 hour night btw) i lost over 25% of my battery life, doing nothing ! wifi off data was on but i only recieved one or two emails all night. is this normal for cm7?
i read about how people are getting 20+ hours battery life while using their phone, if i leave my charger at home and go to work my phone is DEAD halfway through and all i use it for is the occasional phone call mabye 5-10 texts throughout the day and an email or two... how can i fix this?
I read somewhere that if you flash another ROM with battery not fully charged, it messes up calibration and you have to calibrate again. I am still with stock Blur just because I read so many issues with so many people about batteries
I hope you can get it figured out.
anybody?
is anybody else having battery life issues with cm7? if not did you do something to fix it? i have no idea what to do, the phone pretty much has to be tethered to a charger or it gets drained ridiculously fast. If i hang out with a few friends and use my phone during it i literally have to stop using it after around an hour or so because the battery's about to die.
Is there a certain rom with exceptional battery life that i can try to see if mabye its a hardware related issue? i seem to remember having horrible battery life for the day? or so that i was running stock ATT gingerbread.
I use Aura 1.2.2.2 (debloat) and get average battery life. Comparable to what I got before I installed third party ROM. If you want to try that one and see if its just CM then give it a go.
I had a battery problem after flashing to CM with a previous phone (OG Droid) but it was because I flashed while I had the phone plugged into the charger. It took a while to get it back to normal.
I doubt its CM. I dont know if its something draining your battery in the background or if its a result of weird calibration due to the flash.
my battery life has never been hte greatest but recently i got it working really well
I use the latest weekly build of CM7 and here is what i did
upon fresh install:
wipe battery stats
THEN:
kill battery
charge as far as it will go
clear battery stats (use battery calibration app)
take out battery
wait to reboot(missing battery)
put it back in
let it charge for 2hrs
reboot and unplug
kill the battery
charge to 100% while off (no interuptions)
Enjoy!
i have found that the more cycles my battery goes through 100-0-100
the better it gets
these steps almost tripled my battery life (along with Weekly 3)
there is a bug some people report with CM7 about the suspend process. (i have it, you can search "suspend" in the CM7 thread and see others are as well) load up the app betterbatterystats (there is a thread on xda that has the apk) and see if you have that bug.
I'm on nightly 20 having good battery life
Sent from my MB860 using xda premium
I'm a victim of the suspend process bug
had to flash something else, using ALIEN for now and battery is pretty good
Sent from my MB860 using XDA App
i installed betterybatterystats as you guys recommended and im not entirely sure how to read it but the suspend process shows at the top of the list so i assume thats the process which is eating up my battery? Is there a fix for this? i do like cm7 but if its the rom which is causing my battery life issues ill have to wave goodbye. Does this suspend process but happen on the weekly / nightly builds as well?
I was having horrible battery life as well. I froze some apps that I downloaded from the market and that helped a little bit but what gave me 20+ hours of battery life is the new UK orange Radio that has recently been released. I wanted to flash it since I am using an Orange UK phone and see if it improves my wifi connection, etc....
Reddy flashing a radio appropriate to your device and see if it helps.
Sent from my MB860 using XDA App
I had it on stable, and am on weekly 3 right now. I'm probably going to switch back to a blur rom soon..
Sent from my MB860 using XDA App
My battery blows with CM7. My phone has the suspend bug and nothing fixes it. I tried a fastboot wipe and clean install of the latest stable as well as nightly #20. I've tried several kernels, I'm currently running a screen off profile of 216-216 on the 1.0ghz kernel and I'm undervolted to the max just to make it thru the day.
I'm getting the nexus prime or the iPhone 5 next... which ever is released first.
Sent from my MB860 using XDA Premium App
The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk
I have exactly the same issue.
Sent from HydrOG3N MOD S2.
Technology Evolves, Android Evolves.
HydrOG3N is THE Revolution.
[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading
I had exactly the same issue on 3 different custom roms....finally resolved by going bck to stock rom
mgxplyr said:
The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Sent from my GT-I9100 using XDA App
soraxd said:
[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading
Click to expand...
Click to collapse
I'll try this one more time and report back.
mgxplyr said:
I'll try this one more time and report back.
Click to expand...
Click to collapse
Sorry guys, but your method with BatteryCalibration is useless ....
If you wanna do a correct calibration, look at here http://forum.xda-developers.com/showthread.php?t=1312273
Cheers
Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
And that post is just nonsense based on the old battery bump method .
jje
mgxplyr said:
The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
i have the same problem when i use custom roms.
i have been using pure stock rom by wannam but rooted for the past week with 12 hours aday syncing and surfing the net and plenty of voice calls via viber and my battery lasts at least 16 to 18 hours.
right now i am using odexed KL3 Kernel KL2Base KL1modem 2.3.6 and it is absolutely amazing interms of battery life and performance.
http://forum.xda-developers.com/showthread.php?t=1292825
http://www.multiupload.com/06I066U6S8
i have gotten rid of all samsung craps through titanium backup. i only have samsung apps application cuz of some paid apps which are for free such as tapatalk and many more on samsung app store.
my free memory is 97mb (original rom free memory is only 27mb)
i dont use any task killers i use 1Tapcleaner pro.
JJEgan said:
Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
And that post is just nonsense based on the old battery bump method .
jje
Click to expand...
Click to collapse
Maybe, you wanna share a better way to all of us ?
Are you using speeded kernel. If you are then it is because logging and debugging is off.
Sent from my GT-I9100
Completely stock phone never rooted.
Same problem.
Just sayin'
Sent from my GT-I9100 using XDA App
Got the same here, very strange, on CM7
Sent from my GT-I9100 using XDA App
This thing only happens on CM7 for me. It had 40% before reboot and like 15% after. However mine only increased to about 17% then started dropping as usual. This never happened on any stock ROMs I've tried(stock, not themed/modded stock).
Sent from my GT-I9100 using xda premium
did you
did you rsolve the problem ? how? I have the same problem and I tried more stock roms ... I don't know what tot do ....
Its nothing to do with calibration etc, its just how the fuel gauge chip works, it learns and more accurately reports usage over time. For example, if you reboot and (I can't remember the actual voltages for the S2) you have 1200mV, the chip goes, "ah, that is 15% battery." Then as you use it more, it relearns its settings and goes "aaah, my mistake 1200mV is really 30% battery. I'll display that instead."
Its been covered frequently that "calibrating" the battery of the S2 in any way but actually using it, is next to useless.
Sent from my GT-I9100 using xda app-developers app
---------- Post added at 11:05 AM ---------- Previous post was at 11:03 AM ----------
Also just noticed this thread is a year old, but hopefully it will help the poster above.
Sent from my GT-I9100 using xda app-developers app
I'm having this problem too, what did you all do besides get new phones?
Got the same here, after update stock jellybean
Had this problem, when my S2 was half a year old.
I got the original Extended Battery and that solved this issue completely.
The replacement Battery has held up since 2013
soraxd said:
[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading
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did it but it still there... phone flicks and goes off at or below 40% wont turn on again:crying:
same here and I got the 2000 mAh samsung battery back in the days but now it happens with both of them also when my phone shuts off the screen brightness start flashing weirdly