Is there any way to calibrate the battery again? - HTC ChaCha

After buying the phone (factory charged) my girlfriend and I plugged the Chacha into the computer for a while to transfer songs and some files. Then we ran the battery down to empty by playing some angry birds and left it to charge until green (around 6-7 hours i think)
Should we not have plugged it in at all and let it run down? I didnt think it would be a problem since my Optimus One can calibrate the battery any time but I just read that not all Chachas are rootable. Havent found out if hers is rootable though...
Is there a way to recalibrate the battery as of right now?

Wait, what?
What do you mean by recalibrate the battery? For how long do you have the phone?

We bought it yesterday but thinking back to what the guy said before we left, i think we screwed up somewhere by charging it for 20 mins (while transferring data) then letting it run out of power, then charging for 6 hours until the light went green.
Should we have let it run out of power then charged for 6 hours straight until the light went green? And to top it all off, the phone has the dumb Dialer bug Hope FastReboot helps with that since no root access means no apps that can restart the phone with the one touch.

Well first of all calibration, if the guy had any idea what he was talking about means to discharge your phone 'till it's off then charge it for min 8hrs. But this process hasn't been used since smartphones came into the scene.
The calibration now is performed after a few charge/discharge cycles. Also if you plan to charge your phone, use the provided power plug charger and not from the PC/laptop USB.

find battery calibration from market....
the apps can calibrate your battery....but need root....

amtzone said:
find battery calibration from market....
the apps can calibrate your battery....but need root....
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Click to collapse
You shouldn't need an app and root to have a calibrated battery

Alex C. said:
You shouldn't need an app and root to have a calibrated battery
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Click to collapse
hehe it just works as to wipe the battery status only...

amtzone said:
hehe it just works as to wipe the battery status only...
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Click to collapse
So it's an app that does the same thing as CWM. Since it works on rooted phones only, CWM is already installed and wipe battery stats is a CWM option. So this renders this app useless

Oh alright. So i'll just tell her to wait it out with full discharge -> full charge cycles? How many cycles would that usually take? Right now she says its on low batt after just 8 hours or so. Stupid Dialer bug...

raylgo said:
Oh alright. So i'll just tell her to wait it out with full discharge -> full charge cycles? How many cycles would that usually take? Right now she says its on low batt after just 8 hours or so. Stupid Dialer bug...
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Click to collapse
It's not just the dialer issue. There are a lot of useless apps that run in the background. It depends what your gf is using the phone for. Get S-OFF and latest SW versions.
3-5 cyles.

Alright thank you ^_^ I'll get her to implement the fixes for the Dialer Bug and see what happens. And i'll ask my friend's brother if he has an xtc clip in his shop.

3full charge & discharge will be enough. as for the dailer issue is not much of draining the battery. battery drain occur most is auto sync with mails or fb & some those apps will frequently need to update itself. 3G/BT wont drain much battery you can last a good day or 2day without charging.

raylgo said:
Oh alright. So i'll just tell her to wait it out with full discharge -> full charge cycles? How many cycles would that usually take? Right now she says its on low batt after just 8 hours or so. Stupid Dialer bug...
Click to expand...
Click to collapse
not much you can do about dialer bug - save battery by
- turn off facebook chat on fb website and phone
- turn off sync for stock news weather
- turn off some call settings (quiet ring on pickup, pocket mode, flip for speaker) which solves dialer issue (but not for me!)

Related

Battery drain continues - hardware problem?

Hi people. I'm having battery problems since I bought my TP. I tried many ROM and Radios combinations and the problem persists.
Also tried discharging the battery and long charging while turned off (3 consecutive days) as recommended by some members here in xda.
Nothing solved. What could it be? A hardware problem (TP itself) or only a bad battery? Whats more likely?
I would like to know where can I buy an original spare battery to test this. Anyone know?
Thanks in advance!
google.... Here's one, but it's a yahoo page. Take down the oem # and start from there. Also, i think there was a little booklet that should have came with your tp about accessories... http://www.wirelessground.com/htctprooembatt.html
what about using non-official batteries? its risky? because there are batteries for TP for about 5 usd
You know that it will drain battery as long as it is in "sleep-mode" and not entirely powered down. You have to press the powerbutton for 3-4 seconds and then it asks you if you want to power off.
Mr.Sir said:
You know that it will drain battery as long as it is in "sleep-mode" and not entirely powered down. You have to press the powerbutton for 3-4 seconds and then it asks you if you want to power off.
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Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.
have you by any change changed the TF3D theme?
i made my own theme, but i get the impression that battery drains much faster now. watched the battery fall from 21% to 18% in 3 minutes without doing anything besidesscrolling between TF3D tabs.i think themes might be making more use of the 3d accelerator and drain the battery..
I'm using default theme from ROMeOS v1.20
respider said:
Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.
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yeah.. agreed..the bat is so fast drain. never have this problem with athena.
respider said:
Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.
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Oh, I´m sorry
Do you have it turned on all the time in locked mode? Or do you put it to sleep/standby when you not use it?
Mr.Sir said:
Oh, I´m sorry
Do you have it turned on all the time in locked mode? Or do you put it to sleep/standby when you not use it?
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Standby when not in use. Actually, while I dont use, the battery drain seems normal, maybe 2 days or more. The problem is when I use it.
respider said:
Standby when not in use. Actually, while I dont use, the battery drain seems normal, maybe 2 days or more. The problem is when I use it.
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I have the same problem... When I dont use it (stand by mode) it lasts 2 days, but when I use it is lasts 12h maximum...
Tried everything.
Dont know what to do...
thats sad =(
maybe Ill try one of those alternative batteries in ebay
How about upgrading the Radio Rom!? I have found since going to 1.02.25.28 and having ROMeOS² v1.21 my battery life is much better than stock Roms of both!!
Its something worth trying and easy enough to change back...
Has there been any good solutions? My battery life is starting to annoy me.
Maybe I'll pick up a second battery and charging cradle thing for it...
That's one thing that I liked about the instinct...
I think we need a Stock TP to compare it to .. I know when I bought mine for the first day or two without adding anything to it, I didn't notice an issue with the battery. Now that I've installed tweaking software, theme, etc - battery drain is definitely noticeable. I'm thinking it may have to do with one (or more) of the programs we put on the phone.
Anyone here have a completely stock TP with a battery problem?
viper_campbell said:
How about upgrading the Radio Rom!? I have found since going to 1.02.25.28 and having ROMeOS² v1.21 my battery life is much better than stock Roms of both!!
Its something worth trying and easy enough to change back...
Click to expand...
Click to collapse
tried all radios available in wiki page (except .11 and .16)
but that was with romeos 1.12 and dcs, I'll give a try for .28 with romeos 1.21
but I'm pretty sure that the problem is hardware, since many people use romeos 1.21 and radio .19 and dont have problems...
My phone had a very short battery life when it was bone stock too.
I'm afraid to see what it's like now with the tweaks!!!
mine is original stock TP batterry..but also facing the same problem. in average have to charge twice in a day..and the charging takes a few hours. so my phone is only running on battery for not more that 15 hrs in a day..
I'm hoping now thats its a bad batch of batteries problem and not a phone itself problem
I'm having a simlar issues. Put my TP on off/standby (single press of power button) at around 10pm, on flight mode enabled, all appliactions closed via task manger. Battery was at 80% when I did this. My TP's low battery alert woke me up at 4:30am at 8% charge.
My Blueangel used to last several days in the same state out of it's cradle without needing to be charged!
I to am hoping it's just a duff battery.
UPDATE: Seems I was being a twonk! I had unchecked the Auto-Shutdown option for a game I was playing and forgot to turn it back on, so my TP was turning on at midnight to do it's housekeeping and not shutting down again properly.
I still don't think my battery life is normal though, may try the following:
Some Chap said:
Found this on Sprintusers.com: It's an 06 post, but I wonder if it's still an issue. Found here http://www.sprintusers.com/forum/showthread.php?t=175896
Received the below from my Sprint rep.
It has been brought to my attention that there is a glitch in Windows Mobile phones that has been there since WM5… Apparently when a phone is first used the firmware looks at the charge on the battery as a reference point as to how long to charge it for until it is completely charged. So for example, if you have a WM phone that has a half charge on the battery when you first plug it in the device will only ever charge up 50% of the battery. You need to basically set the phone to put that marker in place when the phone is completely dead to gain the most battery performance you can.
Here is the best practice for doing this:
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1. Let the phone completely die on battery power.
2. Plug the phone in and charge for only about 5 minutes (just long enough it can boot up completely)
3. Perform a hard reset of the device, this is done differently depending on the phone model.
4. Then place the phone on charge for at least 8hrs.
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This should reset that marker that the operating system places on the battery charge cycle and will allow the phone to completely charge the battery rather than only a % of a full charge. This procedure can be done at anytime and I would suggest having your customers try this process first before returning a device based on battery life issues.
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[HOW-TO] - Battery Calibration

There has been much confusion and frustration surrounding our battery life and these custom roms. Some of us have great battery while others are having horrid problems.
I am writing this guide in the hopes it will help all of you with problems getting that great battery life.
This is a guide written from my own experience and technical understanding.
First, Your phone should drain, on average, 1% per hour or less while in standby mode (screen off). If you are not getting this average, you need to calibrate your battery.
ALWAYS flash a new rom with your phone at 100% battery - no exceptions!
i know some guides say to run battery down to 2% and then charge, but i never had much luck with this.
1) Before you flash your rom, charge your battery to 100% with the phone ON.
2) Once it says fully charged, turn the phone off and plug it in and wait for the on screen display to say 100% (this will take 5 to 10 min)
3) Turn the phone back on, and plug it in and charge till it says 100%
4) turn off the phone and charge again while off until the on screen battery indicator says 100% (again this will take 5 to 10 min)
5) repeat steps 1 thru 4 as many times as you feel comfortable, I recommend at least twice (I do it 3 times)
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed)
8) The first boot after the flash needs to be into Clockwork Recovery, wipe battery stats at this time (most roms will boot into recovery automatically, if not, boot into recovery manually)
9) after you have wiped your battery stats, wipe cache and other data (if the rom you are flashing requires this, if not, skip this step)
10) Boot the rom to the homescreen.
11) from this point on, you will use your phone like normal until the phone completely shuts off. this SHOULD take a while. you should see improved battery life during this stage. If not, dont panic, just run the battery down until the phone shuts off
12) once the phone shuts off (try to time this to happen at bedtime) plug the phone in and allow it to charge in the OFF position
13) once it is at 100% again, use the phone like normal and enjoy your new battery life.
IF YOU ARE DOING THIS WHILE NOT FLASHING A NEW ROM
Do steps 1-4 as many times as needed, I recommend at least twice, i do this 3 times
on the last charge up (your phone should be off while charging during this step) unplug the phone and boot directly into recovery and wipe battery stats. then proceed with the rest of the guide.
TO TEST THIS
charge to phone to 100%, try not to mess with it for an hour or so.. (light usage at most) you should still be at 100% or 99% after an hour. If you are at 95% or below, then the calibration has failed. (unless you have been using the phone or are in a very low to no signal area).
this calibration method is crucial to good battery life. Before I started doing this i was getting very bad battery life. Click on my username and look at my previous posts.. you will read about me *****ing badly about my battery, this is what I did and it has worked amazingly well.
I hope this helps
I combined a lot of techniques ive seen in other threads and some websites and then created this technique which seems to work really well.
I have used this technique and can confirm, it works well if done properly.
From my Charge - XDA Premium
Are the first few steps what is referred to as "bump charging"?
I think this has worked quite well. I flashed Humble 1.2 (at 40% battery) last night, charged up, then started this procedure. After I got done, I took it off the charger and after 15 minutes of trying a new game, listening to a minute of music, and checking various things, I was still at 100%. i left it off, went to bed with wi-fi on, and woke up at 95%. Awesome. My all-day phone is back.
szgeti said:
Are the first few steps what is referred to as "bump charging"?
Click to expand...
Click to collapse
Yup glad that this works for folks
Sent from my SCH-I510 using XDA App
What happens after the calibration process? do i have to do this everytime i charge my battery or does like normal mean i can just leave it charge whenever. Also with what frequency should i be doing this? once a month calibration?
Just did this... 1 hour 15 mins. and still at 100% Sent two text messages out and played Words with Friends for a minute. Thanks!
Did this and it didn't work advice on what I am doing wrong I did the bump charge 2 times ran the phone down 100% and am now looking at 88 percent of next to no use after about an hour and a half of having the phone on.
Sent from my SCH-I510 using XDA App
thecontrolm7cl said:
Did this and it didn't work advice on what I am doing wrong I did the bump charge 2 times ran the phone down 100% and am now looking at 88 percent of next to no use after about an hour and a half of having the phone on.
Sent from my SCH-I510 using XDA App
Click to expand...
Click to collapse
I am in the same boat with you.....I'll just have to accept the fact that I will have to charge every 6 hours, which was a 2 hour step up from the TB.
This works, going on 17 hours and still at 65%.
Sent from my SCH-I510 using XDA App
brian1972ct said:
I am in the same boat with you.....I'll just have to accept the fact that I will have to charge every 6 hours, which was a 2 hour step up from the TB.
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Click to collapse
What I am curious to know is what is usage like for the people that this worked for. Don't get me wrong I'm not doubting the op but I am a pretty heavy user and even so I'm not really experiencing this awesome battery life everyone talks about when I'm not using it heavily
Sent from my SCH-I510 using XDA App
For all of you that are getting the great life, what percentage does it list for display? This is under settings > about phone > battery use.
I'll have to try this method. My battery life is actually worse now after I tried doing the drain to 2% method. I'll report back with my observations.
Are we talking 3G or 4G here?
I would find it useful when people are talking about how good (or bad) their battery life is to know if they are in a 4G area and have 4G turned on, or are they using 3G only?
Trying to figure out how bad a hit 4G takes on my phone...
Thanks.
knodalyte said:
I would find it useful when people are talking about how good (or bad) their battery life is to know if they are in a 4G area and have 4G turned on, or are they using 3G only?
Trying to figure out how bad a hit 4G takes on my phone...
Thanks.
Click to expand...
Click to collapse
So I tried this out yesterday...I don't have a rooted phone so I could not wipe battery stats (does anyone know how to do this without rooting your phone?)...but I did follow steps 1-4 three times and I have gone 23 hours on my charge without having to plug it in. I am in a 4g area and had 4g and background services on for the full 23 hours. Had bluetooth, GPS, and wifi turned off. I sent a couple texts, used whatsapp to send texts, used google voice to send texts, made 3 phone calls (about 4 to 5 min each) played angry birds for about 20 min, played words with friends for 10 min, surfed the web on and off, was on tapatalk and browsing forums for about 20 min and I installed a new keyboard and web browser on my phone in those 23 hours.
I am very curious to know if this will improve battery life after that first initial bump charge.
If you do a regular charge after depleting the charge, do you still see improved battery life?
triton302 said:
I'll have to try this method. My battery life is actually worse now after I tried doing the drain to 2% method. I'll report back with my observations.
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Well... did this too with no luck. I'm just going to have to deal with the fact that this is a power hungry phone.
triton302 said:
Well... did this too with no luck. I'm just going to have to deal with the fact that this is a power hungry phone.
Click to expand...
Click to collapse
You may have a defective phone or battery.
hooskins said:
You may have a defective phone or battery.
Click to expand...
Click to collapse
I'll try another battery... but I've already been through too many DC's and I'm not returning this one. I have no issues with it at all, just this battery problem.
msticlaru said:
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed
I dont understand this, you can go to download mode without battery? Or flash a rom with no battery?
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Click to collapse
BatTusAi said:
msticlaru said:
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed
Click to expand...
Click to collapse
I dont understand this, you can go to download mode without battery? Or flash a rom with no battery?
Click to expand...
Click to collapse
Yes. The phone will pull the necessary power for download mode and the Odin flash from the USB port. Just be sure to use a primary USB port (usually the ones on the back of the computer), rather than a hub, as the hub tends to cause problems.

[Q] Battery Calibration

I read a lot of thread about battery calibration so I want to know if someone try this on XT720 and if it's really usefull and not dangerous for the phone.
Thank you
It is useful and not dangerous at all. Your battery has, if stock that came with phone, a full charge of 4.2v.
So let's say that you have been conservatively using you phone most of the day and are at 70%. You decide to flash the Hellmonger edition or CM6 but you make a nandroid backup first. You flash them and it goes horribly wrong and your phone power dwindles down to 30% and you freakout and charge it back up.
When it is charging, you decide to hold off on flashing for a bit and want to go back to your "home" ROM, whatever that may be. You let your phone charge up to 100% and re-flash your back up. Once it reboots and settles down, you happen to notice that just 5 mins ago you were at 100%, but now after flashing your backup, your battery shows 70%.
30% drop in 5 mins is rediculous. Yes it is, bit it didn't really drop 30% in 5 mins because when you backed up your original ROM, you also backed up your data/system/batterystats.bin that was calibrated to 70%.
If you use Battery Calibrator and charge it up fully, run app, hit it and then unplug, it deletes the data/system/batterystats.bin and in a few seconds (5 ithink) it creates a new one with you proper charge and voltz.
So if you flash a lot, this is good for you. Or you can delete the batterystats.bin manually if you want, but there's an app for that.
Woodrube said:
It is useful and not dangerous at all. Your battery has, if stock that came with phone, a full charge of 4.2v.
So let's say that you have been conservatively using you phone most of the day and are at 70%. You decide to flash the Hellmonger edition or CM6 but you make a nandroid backup first. You flash them and it goes horribly wrong and your phone power dwindles down to 30% and you freakout and charge it back up.
When it is charging, you decide to hold off on flashing for a bit and want to go back to your "home" ROM, whatever that may be. You let your phone charge up to 100% and re-flash your back up. Once it reboots and settles down, you happen to notice that just 5 mins ago you were at 100%, but now after flashing your backup, your battery shows 70%.
30% drop in 5 mins is rediculous. Yes it is, bit it didn't really drop 30% in 5 mins because when you backed up your original ROM, you also backed up your data/system/batterystats.bin that was calibrated to 70%.
If you use Battery Calibrator and charge it up fully, run app, hit it and then unplug, it deletes the data/system/batterystats.bin and in a few seconds (5 ithink) it creates a new one with you proper charge and voltz.
So if you flash a lot, this is good for you. Or you can delete the batterystats.bin manually if you want, but there's an app for that.
Click to expand...
Click to collapse
So, if I understand, it's not so usefull because after I lose my 30%, if I charge and I have 100% it's really 100% not 70% right ?
I would say that it is always best to start from a clean slate. It deletes that batstat file and starts anew. Can't hurt, but if you are flashing ROMs every 3rd day like most of us, it does come in handy.
For the moral of the stroy, it will not damage your phone. Just a one click app that you can do manually with Root Explorer if you wanted to.
Woodrube said:
I would say that it is always best to start from a clean slate. It deletes that batstat file and starts anew. Can't hurt, but if you are flashing ROMs every 3rd day like most of us, it does come in handy.
For the moral of the stroy, it will not damage your phone. Just a one click app that you can do manually with Root Explorer if you wanted to.
Click to expand...
Click to collapse
Ok, thank you, I will use it when I will flash a new ROM.
Do you actually have to drain the battery fully after calibration?
Sent from my MilestoneXT720 using XDA App
eejin2 said:
Do you actually have to drain the battery fully after calibration?
Sent from my MilestoneXT720 using XDA App
Click to expand...
Click to collapse
Its recommended that the battery drain fully, and then be recharged without interruption. I guess thats to give android a full scale from full to empty, to help better report battery stats and consumption.
However for me full drain means 10-15%, its hurts the battery to be drained till the phone powers off.
sohrab.naushad said:
Its recommended that the battery drain fully, and then be recharged without interruption. I guess thats to give android a full scale from full to empty, to help better report battery stats and consumption.
However for me full drain means 10-15%, its hurts the battery to be drained till the phone powers off.
Click to expand...
Click to collapse
Haha battery calibration definatly helps the battery a lot but u suggest not draining battery fully??
androidlover123 said:
Haha battery calibration definatly helps the battery a lot but u suggest not draining battery fully??
Click to expand...
Click to collapse
I used to drain it fully till my phone turned off before calibration but I read a very detailed article about how draining the battery completely can hurt it. So I choose to drain it till 5-10% which is good enough
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
I know that the last little bit of charge just trickles in and takes a long time. If mine is at somewhere between 4150 and 4200, i call it good and go from there. If it was showing at say 4095 and 100%, then there might be something wrong with either the data or the battery. If you are sitting at 4165, then it is charged for the most part.
The app and what it does is more for when you are flashing a ROM and have around 60% and then once booted up fully, you charge it up to 100%. Decided you don't like your ROM and go back to your original ROM via backup, it will show 60% instead of the 100 or 90% you had before you went back to back up b/c you backed up the batstat bin when you nandroided your original ROM.
How about this:
ROM: Epicsteelblue 70% (and you made a backup) Then went to CM6, charged and hit calibrate battery at 100%. Used CM6 for a few hours and decided it wasn't your bag. Your batter is at 50%. You flash back to your Epicbluesteel ROM and you know for a fact you had 50% before you flashed back, but now once totally booted, you are showing 70%. This is why you use the battery calibrator after you flash a ROM. Gotta create a new batstat bin for you "fresh" ROM (even though it is a backup).
Hope this helps explain better.
eejin2 said:
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
Click to expand...
Click to collapse
That happens sometimes to me aswell. The battery calibration app shows the battery full at 4165 or somewhere in that range. What I do with that is bump charge it. So if battery calibration shows 4165, i just calibrate it and turn the phone off while it is connected to the charger. When it turns off the charging screen appears and shows 100%, i leave it there for an hour or two. Then remove and turn the phone on. If you go into the battery information itll show the charge to be 4200 or close to that. Hope that was helpful you can try it next time.
EDIT: The reason I turn the phone off and let is charge is that when it reboots after fully charging to 4200 it can create a fresh battery stats. Remember battery stats are only rebuilt upon boot. If you calibrate your battery and then dont reboot its useless. To test calibrate it, and then use it for awhile and then try to recalibrate it the app will indicate that there are no battery stats avaible to delete. This is because the ROM has not made any new battery stats and will only make them on boot.
hey guys has anyone tried this method (http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10) of calibrating battery? it seems the dev says that if u use his method, you can calibrate without downtime!!
wow this is damn cool. but its kinda complicated. the old way feels better for me i think...
Battery Updates
The battery updates every 10%, is there any way to make it update more precisely, like every 5%?
I've never been able to get anything better that 10% battery increments
Okay thanks maybe in a future rom this would be nice.
Hi
Is their a way to change from 10% to 1% increameants.
Sent from my XT720 using xda premium
eejin2 said:
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
Click to expand...
Click to collapse
It is the property of all rechargetable battery, 4.2V can only see at the moment charging progress just finished. when the power management IC pull of charge current, battery's voltage will drop a litte in a very short time, like you said, 4.165V for example. And, because of your charger is connected, battery will not drain, It won't be another charging progress witch you are expecting.
I know I'm digging up an old thread here, so sorry for that. I've recently tried a few other ROMs, but since have come back to CM6.3.7. I always do the battery calibration thing when I flash ROMs and each time I've tried it lately, it gives me odd information in the Battery Usage screen. I charged my phone to 100% yesterday before leaving work and when I got to work today, it showed 70%, which seemed normal, but the Battery Usage screen showed "1h 24m since last unplugged" and I know I hadn't plugged it into the wall or USB for about 12 hours. I did restart once....could that be the reason why the time since last unplugged is incorrect?

Battery issues! Running out of ideas. Can someone help? (SOLVED)

I can't seem to figure out whats wrong with my phone. I have a draining issue with my battery and i don't know if my battery indicator is not accurate. I used odin and went back to stock on a full indicated battery. Then I flashed VB and adrenaline shots 1.4-1 and camera tweak and scrolling mod and booted the phone and let set for 10 minutes before I reloaded all my apps. My battery was indicating it was at 100% ok so i unplugged the battery and wham it dropped to 79% plugged it back in and it started charged from where it left off at 79%. After a few min and the phone goes to sleep mode and indicates 100% i unplug the phone and it charged from where it left off at 79%. So i kept unplugging it and plugging it back in every few minutes till i got to 100%. So sounds ok now but i had to reboot my system and wham again down to 79% and even with the uv settings my battery drains fast. I tried calibrating the battery and also charged it with the phone being off and no results. All I want is a full charge as I work long shifts lol. thanks and i hope this is understandable the way i tried to describe it.
Also Thanks to the devs on here who dedicate their time to making this device do what it was meant to do..
Try letting the phone die completely. After about ten minutes power it back on then let it die completely again. Leave it off for an hour then plug into wall charger. Let it charge to 100% while off. After it hits 100% unplug it and leave it sit for an hour while off. Then turn it on and use normally.
hechoen said:
Try letting the phone die completely.
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Not to contradict hechoen - but take note that Samsung recommends against completely discharging your battery in the manual for the phone.
+1 (edit: on previous calibration routing)
also you may try to "jump start" MAX17042 (fuel gauge) chip... when your phone at 100% on a charger (verify this by looking at battery voltage - OS Monitor / Misc tab. or other similar apps) - voltage should be around 4.15 - 4.2V. When you disconnect charger - what would be the voltage then? If around 4.0V then may be your battery is going south.
To "jump start" FG - turn off the phone, pull battery out and wait for 5 - 10 min. - just to be sure internal circuits got completely discharged.
When you install battery, FG chip will use "average" model for new lipo... see if it makes difference.
Yeah I've heard that this kind of batteries last longer if charged continuously (short and often charges) instead of full charges after letting it die. Something about battery cycles or some.
I'd recommend fully charging and battery calibration from market. Also, reflash rom but not tweaks yet, and see how it behaves. Then install tweaks/mods and see if the battery continues to decrease rapidly. If it does, get an app for battery info, check its health.. Your battery might be dying for good.
Sent from my SGH-T959V using XDA App
mikeflash said:
battery calibration from market.
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Google has also debunked the battery calibration myth. There is a thread about it in the General Section with a link to the article.
To add to the recommendations...
Check how often your phone is set to sync. Big battery drainer. Auto starting apps. And display brightness.
if all fails you could try to reflash and see if that fixes it
Sent from my SGH-T959V using XDA App
lumin30 said:
Google has also debunked the battery calibration myth. There is a thread about it in the General Section with a link to the article.
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Click to collapse
+1 on that too... glad to see that finally common sense based on knowledge prevails "Battery Calibration by wiping batterystats file" apps myths.
lumin30 said:
Google has also debunked the battery calibration myth. There is a thread about it in the General Section with a link to the article.
Click to expand...
Click to collapse
Wait, I didn't say battery calibration is going to make your battery last longer. It doesn't do that.
But it's a fact that after installing a rom a battery calibration is needed. Normally, developers code their install scripts to perform a battery calibration when installing the rom, so this is not needed afterwards, I still do it anyways when charging the first time to 100%.
I for one had the issue for the first time when installing a rom (don't remember which one) and after rebooting or shutting down the phone, the battery would go from >90% to <20% for no reason at all. Someone here at XDA suggested battery calibration app (or, manually at CWM/advanced, clear battery stats) and the issue was gone. Maybe the rom is misreading battery data and that could cause this kind of issues... which a battery calibration would fix it.
Just saying.. if there's an option for it in CWM, then chances are it is needed for some reason!
Vlad_z said:
+1 on that too... glad to see that finally common sense based on knowledge prevails "Battery Calibration by wiping batterystats file" apps myths.
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Indeed. It's on our wiki, too, under the batterystats.bin Buzz Word entry.
So i think I needed to do a factory reset. I re flashed vahnilla black and then did a factory reset in the rom. Before I re flashed the rom I
had 60% as soon I restarted the phone on the freshly flashed rom it dropped to 1% then I did a factory restart within the rom and when I rebooted the battery indicated 20% and I am in 16% charge now, only went down 4% within the last 6 hours. So I will run it till it dies tonight and charge it with the phone off to see the results tomorrow.
Thanks Raver for the help in this matter. Will keep everyone posted on the end results.
Sent from my SGH-T959V using xda premium
lumin30 said:
Not to contradict hechoen - but take note that Samsung recommends against completely discharging your battery in the manual for the phone.
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Click to collapse
No contradiction at all. You shouldn't fully discharge all the time. But once in a while it's actually good for the battery. Especially lithium ion. Take a look at this. For those of you who don't like to read that much just skip to the bottom.
http://batteryuniversity.com/learn/article/inner_workings_of_a_smart_battery
hechoen said:
No contradiction at all. You shouldn't fully discharge all the time. But once in a while it's actually good for the battery. Especially lithium ion. Take a look at this. For those of you who don't like to read that much just skip to the bottom.
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Forgot link?
thomas.raines said:
Forgot link?
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Sure did. Sorry about that.
vwgtiturbo1 said:
So I will run it till it dies tonight and charge it with the phone off to see the results tomorrow.
Thanks Raver for the help in this matter. Will keep everyone posted on the end results.
Sent from my SGH-T959V using xda premium
Click to expand...
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so you call hechoen (guy who posted calibration routing) Raver...
Vlad_z said:
so you call hechoen (guy who posted calibration routing) Raver...
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no actually raver answered a few questions for me through pm. but hechoen thank you and i will do that when my battery is fully charged. thanks again to everyone for the info! will update tomorrow!
I fully charged my battery last night while it being off and let it sit for a hour before turning it on. Well great seemed to now indicate it's fully charged after a hour I threw on adrenaline shots 14-1 with camera and scrolling mod. Let it air for 30min went into recoveryand fix perms. When I rebooted the phone the battery dropped again from 80 to 60 and then went back up to 75. Then I rebooted again it dropped to 25% and then I rebooted again and now it indicates 59% I believe this battery is heading south. What do you guys think?
Sent from my SGH-T959V using xda premium
....................
drywolf said:
How old is the battery. If it is a quality battery it should take between 500 and 900 recharges. Do you own a volt meter?
Also calibrating your battery should be done occasionally. Not to somehow make your battery last longer, but to clear out the old data and use new data to show your batteries usage. Just like resetting the computer in your car that shows average MPG. Fresh input will give you a better idea of what your car is getting today and same goes for your battery stats.
http://batteryuniversity.com/learn/article/battery_calibration
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I have calibrated the battery. Everything seems to of been working fine until I added adrenaline shots. Once I rebooted after installing adrenaline shots my battery started acting up again. I pulled the battery out for 10 min and popped back in and now I'm indicating 56% after 4 hours of heavy use with wifi on. :/
Sent from my SGH-T959V using xda premium
Is this a factory battery? Or a aftermarket ebay/amazon battery?
Im sure people will disagree but some of those aftermarket batteries are not the greatest quality.
Do you live in a town that had a battery store, like the interstate battery shop or something of the likes? Most of those places can do a brief diagnostic of the battery and tell you if it is bad. Or if you have a volt meter fully charge it and test it that way.
It really sounds like the battery is being stupid. There should not be any reason installing A.S. could cause a instant battery drain. If that were the case your phone would be so hot you could not hold it. Because draining that much juice in that little of time would indicate you have a short or something of that nature.

STUPID OEM battery.... I now hate you!

hi all,
having some fussy battery action on my P920.
For starters, it will NEVER charge to 100% anymore... it only goes to 98% and stays there (I miss the "your phone is fully charged - unplug" warning lol).
I also notice it drains REALLY fast till its around 70% and then it slows drainage significantly.
Also, when I use apps that restart my phone (using root methods), it seems to drop battery charge level in chunks of like 25% or more at a time... JUST from a simple reboot!
What the heck is going on!
I have tried resetting battery stats in CWM, using apps like battery calibration etc, and nothing seems to fix it...
I have no idea what else to try. I have other batteries I ordered from China on Ebay but i think they are worse LOL
Anyone have other experiences you can share that can help me out?
Much appreciated in advance for reading my rant.
install CPUSpy
discharge to 3-5% -> charge to max not over the computer but over the wall charger- >start using it ->give us a picture of your CPU Spy after a certain amount of time -4-5h (Hold power button and press home button - will take a picture in /sdcard/CapturedImages)
I had the same battery stories with my phone.
Flashing V21E Stock fixed it, don't know how.
I also tried wiping and battery calibration, wiping didin't worked, battery calibration worked until reboot.
that used to happen to me i installed baseband V21E and it fixed it. iv just bought a 3500mah battery, yeah i know my phone now looks like a brick, but it lasts sooo much longer, 3hr phone call, playing nova for a hour, a couple of texts and my battery at 80%.
iqb043 said:
that used to happen to me i installed baseband V21E and it fixed it. iv just bought a 3500mah battery, yeah i know my phone now looks like a brick, but it lasts sooo much longer, 3hr phone call, playing nova for a hour, a couple of texts and my battery at 80%.
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OMg :O I want that battery,but i can't order it to Serbia :'(
Sent from my LG-P920 using XDA

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