Develop Bugs

battery caliberation

hello people , i need an advice on an issue, my phone has been shutting down on 10% , i've tried several caliberation methods found on xda , but none succeeded to solve my problem, my battery status is "good" so it's not a "faulty battery issue" . so if anyone has a usefull link, or can recommend a working method i'd be grateful

not sure there is a genuine method theres loads of "wives tales" on the web but i think its a case of turning apps off and having a power control widget.
some of the calibration methods are rumored to cook the battery to

Some roms shut down at 10%, some earlier, some later. Just stick with it.
TouchPaled from Oxygen with Transparent XDA App

MatDrOiD said:
Some roms shut down at 10%, some earlier, some later. Just stick with it.
TouchPaled from Oxygen with Transparent XDA App
Click to expand...
Click to collapse
i'm using cool3D aceS v2a , and i haven't seen anyone complaining about it, so i don't think it's a rom issue, pretty sure it's has to do with caliberation, but can't find any working method

rayiskon said:
i'm using cool3D aceS v2a , and i haven't seen anyone complaining about it, so i don't think it's a rom issue, pretty sure it's has to do with caliberation, but can't find any working method
Click to expand...
Click to collapse
Maybe it does not disturb the people?!
Already tried this method:
http://forum.cyanogenmod.com/topic/11823-battery-calibration-thread

rayiskon said:
i'm using cool3D aceS v2a , and i haven't seen anyone complaining about it, so i don't think it's a rom issue, pretty sure it's has to do with caliberation, but can't find any working method
Click to expand...
Click to collapse
It's by design. HTC phoned shut down like this to protect the battery from breaking. Truly going to 0% will ruin a Li on battery and render it useless. All desires do this out of the box.
There is one method that fakes it so that when it is really at 10-15%, it fakes it to show 1% but I forget what it is.
It's all pointless really
Sent from my HTC Desire using XDA App

I also had this issue last night. Phone powered down with my batt at 10%. Does not bother me now after reading matdroid and rootsu's post and understanding that it will save my batt from breaking.
But I think adjusting it from previous 10% to maybe 5% which i think is still safe would be great. Only question is how
thanks guys

jesseuy said:
I also had this issue last night. Phone powered down with my batt at 10%. Does not bother me now after reading matdroid and rootsu's post and understanding that it will save my batt from breaking.
But I think adjusting it from previous 10% to maybe 5% which i think is still safe would be great. Only question is how
thanks guys
Click to expand...
Click to collapse
i remember on froyo and some GB roms i could go beyond 10% , i also think 5% would be the best option, pretty sure it can be done in a way or another

[Q]Whats up with my battery?

Hey!
The last few days I noticed some strange behavior of my battery...
Just look at the screenshots..
The bar suddenly goes down, and then goes up, while I was NOT CHARGING! I was at school all the 9 hours! I wasnt even able to charge it. As I said, I was at school, and I definitly have no charger with me.
How the heck is that possible..?
I mean, I was looking through my Galery, when my Phone suddenly turns off.(had 48% battery b4 it crashed) I rebooted the device and suddenly it sais: battery low...
I was about to smash it... I mean that is really p... Me off... Sorry for the language, but I have this mobile one year now, and I have lots of errors, even on stock rom!
So lets take a look at the second screenshot...
I was just messaging with my gf via WhatsApp...
You see how long my battery lasts?
I took the screenshot, and went to the XDA App afterwards, to ask over here.
Well, I just had to plug in the charger, so It won't turn off while Im typing...
That is just horrible!
Im on CWM Flashable Stock Rom (XLMD or.smth. Like that..)
Device is NOT rooted.
I had some other Samsung Phones in the past.. But honestly, after this Phone.. I hate Samsung. Just hate samsung mobiles.
My next phone is gonna be HTC or iPhone.
HTC's Design is way better, Hardware, Software, the Platform (Sense) is awesome. I mean wtf is touchwiz...
Sorry for beeing mad at the wonder... Im just annoyed by this phone, and I have to keep it for another year.. :/
What can I do..?
What other battery can you recommend for me..?
Help me out, pls
EDIT: screens coming in a few minutes. Tapatalk is not working -.-
Sent from my GT-I8150 using xda app-developers app

My first thoughts are that it IS the battery. Some of the symptoms you've described are the same as what I experienced. It got to the point with my phone, that from FULLY charged, I could send one text and the phone would switch off. You also say that the phone is a year old....I'd say there's a high probability that you need to replace your battery. Take the battery out of your phone and look for signs of swelling (I had to replace mine after 7 months). I brought mine (a 1700 mA unit) from amazon for £5. And now my phone's fine.....I'd recommend this route over smashing your phone lol.....
Sent from my GT-I8150 using Xparent Green Tapatalk 2

Here are the screenshots..
Can you give me a Link to the 1700ampere battery ? Gonna buy it..
My battery looks fine. Doesnt got big or blown or smth.
Looks as at the first day, works sicker than ever.
I would appreciate the link, and order right now
Sent from my GT-I8150 using xda app-developers app

That's certainly the battery's problem and not software problem.
Try callibrate your battery and if that doesn't work, you should really get yourself a new battery.

Here's the link
http://www.amazon.co.uk/gp/aw/d/B006P5332G/ref=mp_s_a_1?pi=SL75&qid=1351337510&sr=8-1
From my experience it doesn't last any longer than the stock battery....but for £5, I'm not complaining...lol
CM9...I don't HAVE to.....I just.....can..

ghyeng said:
That's certainly the battery's problem and not software problem.
Try callibrate your battery and if that doesn't work, you should really get yourself a new battery.
Click to expand...
Click to collapse
I know that's not a software problem, thats why I called my Thread whats up with my "battery"
Allreary tried to calibrate it mate... Didn't work for me :/
Will get a new Battery, and then report how it works
keithross39 said:
Here's the link
http://www.amazon.co.uk/gp/aw/d/B006P5332G/ref=mp_s_a_1?pi=SL75&qid=1351337510&sr=8-1
From my experience it doesn't last any longer than the stock battery....but for £5, I'm not complaining...lol
CM9...I don't HAVE to.....I just.....can..
Click to expand...
Click to collapse
Thank you for the link
I don't know which one Im gonna choose

If it's any consolation, battery issues with smart phones are quite a common occurrence no matter who makes the phone.....be thankful you don't have an iPhone otherwise you'd have to unsolder the battery to remove it.......
Sent from my GT-I8150 using Xparent Green Tapatalk 2

[Q] Battery problems

Hi
'Noob' here, be gentle, please.
My original Desire is 2.5 years old. So is the battery that started playing up.
It didn't last long and the phone kept suddenly switching off at about 50%. I guess it's a pretty common problem: Htc Desire Shuts down at 40-50% battery
So, I've bought a new one, "aoonen".
The new problem is that it stacks at 15% when charging.
The LED light turns green and it shows in the Status: Battery status - Full, Battery level - 15%.
Sometimes after plugging out an back in it starts charging and shows 16-17% for some time, but soon it stops and shows 15% again.
If the phone is switched off, the LED turns to amber and remains amber, but the battery seems not to be charging as the phone remains cool and it's the same 15% when switched back on in few hours.
It's original HTC charger and cable, but I did try other cables and PC USB ports to no avail.
Factory reset did not help.
Neither did booting to recovery with wiping all caches and battery statistics.
If I replace the new battery with the old one it shows 100%.
Android 2.3.7 installed by my son (I am no expert in this) in Nov 2012.
Kernel 2.6.37.6-cyanogenmod-g2a32ab1 [email protected] #31. I still have cm-7.2.0.1-bravo.zip on the SD card and used it for the recovery.
If it's of any importance, before buying the new battery I tried using some apps (uninstalled now) that didn't help: Battery Calibration and Easy Battery Calibration.
I like my Desire, I fits all my needs and I am very reluctant to replace it.
Will be grateful for any ideas and advices.

you deserve credit for researching your problem thoroughly .
to be honest, just sounds like a fake/counterfeit battery. it doesn't look like a reputable brand to me.
you've tried calibrating the original battery and still get early shutdowns?
i take it you still need a new one, personally i would recommend official battery if you can find it, you get what you pay for.

I have wrote about same issue in this forum
You have src shots also in my thread.
http://forum.xda-developers.com/showthread.php?t=2275048
I have order new bat but I am still waiting for it.
Did you try to wipe battery stats through cwm? Battery calibration should do this but you can try manual also through cwm?
If nothing helps try new battery. Maybe new one is fake.
Sent from my GT-I8190N using xda app-developers app

eddiehk6 said:
to be honest, just sounds like a fake/counterfeit battery. it doesn't look like a reputable brand to me.
Click to expand...
Click to collapse
It was mentioned somewhere as a good brand. And what's the point in faking/counterfeiting some unreputable brand? This was exactly my thought that a 'genuine' battery is far more likely to be fake.
you've tried calibrating the original battery and still get early shutdowns?
Click to expand...
Click to collapse
TBH, I have no idea how to calibrate it. I just ran the above apps (one, later another) and they said that it was calibrated, but nothing changed.
i take it you still need a new one, personally i would recommend official battery if you can find it, you get what you pay for.
Click to expand...
Click to collapse
"if you can find it" - absolutely. Any recomendations?
Also, my battery is BB99100, but often I see BA S410 for Desire that looks similarly. What's the difference?
lifeiswisdom said:
I have wrote about same issue in this forum
You have src shots also in my thread.
http://forum.xda-developers.com/showthread.php?t=2275048
I have order new bat but I am still waiting for it.
Did you try to wipe battery stats through cwm? Battery calibration should do this but you can try manual also through cwm?
If nothing helps try new battery. Maybe new one is fake.
Click to expand...
Click to collapse
What's 'cwm'?

grumbler said:
It was mentioned somewhere as a good brand. And what's the point in faking/counterfeiting some unreputable brand? This was exactly my thought that a 'genuine' battery is far more likely to be fake.
TBH, I have no idea how to calibrate it. I just ran the above apps (one, later another) and they said that it was calibrated, but nothing changed.
"if you can find it" - absolutely. Any recomendations?
Also, my battery is BB99100, but often I see BA S410 for Desire that looks similarly. What's the difference?
What's 'cwm'?
Click to expand...
Click to collapse
no, i've never replaced my original battery after nearly 3 years now probably should, so can't give any recommendations as to where to buy one.
it's a minefield, but be thankful that it's relatively easy to buy a replacement, unlike some new high end phones.
calibration should only be done with proper apps, this is the only one i know of that works, you have to find and follow the instructions carefully, though i've never done it myself. my battery still dies anywhere in between 15% and to 6%, which i can live with and just gotten used to. however if yours is dying at 40-50% it's likely that it's aged beyond its working life.
cwm is short for clockworkmod, he is suggesting you wipe battery stats there, but this myth has been debunked for a while that it does not calibrate the battery in any way.

yy
me too, i dont know

eddiehk6 said:
cwm is short for clockworkmod, he is suggesting you wipe battery stats there, but this myth has been debunked for a while that it does not calibrate the battery in any way.
Click to expand...
Click to collapse
Wiping bat stats - you will get fresh and accurate information about new battery usage. Thats all.
Sent from my GT-I8190N using xda app-developers app

eddiehk6 said:
...
calibration should only be done with proper apps, [To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!] is the only one i know of that works, you have to find and follow the instructions carefully, though i've never done it myself. .
Click to expand...
Click to collapse
Some user says there: "You must read the tutorial on XDA if you want this to work. Follow it step by step."
Anybody knows where it is at XDA?
The censored link was to "Battery Calibrator" app by Jon Richards

Real calibration is done by:
- wait until the battery is completely empty and the phone shuts down
- insert a charger immediately but leave the phone OFF
- wait until the phone is fully charged
This worked perfectly for me!
Sent from my HTC Desire using xda app-developers app

grumbler said:
Some user says there: "You must read the tutorial on XDA if you want this to work. Follow it step by step."
Anybody knows where it is at XDA?
The censored link was to "Battery Calibrator" app by Jon Richards
Click to expand...
Click to collapse
took a bit of searching around, but here
ignore the fact it is in nexus one thread, works for desire and compatible kernel, read carefully, try and see if it makes a difference.

Battery at 14%

Some Users are reporting that the Battery stays at 14% for a long time.
I had this issue too , until i waited till the Phone was down to 1% and switched off, ( this took ~6h with GPS active and Display on!!) since this time i did not notice this behaviour.

drcyber said:
Some Users are reporting that the Battery stays at 14% for a long time.
I had this issue too , until i waited till the Phone was down to 1% and switched off, ( this took ~6h with GPS active and Display on!!) since this time i did not notice this behaviour.
Click to expand...
Click to collapse
+1 This issue has been part of my Fairphone experience since the beginning - and fully draining the charge like you described doesn't seem to help: Even after 20 complete discharges, it still gets stuck at 14% for hours, making a correct estimate how much battery I actually have left impossible. These three screenshots are all one week apart (Jan 17th, Jan 22nd & Jan 30th - click to enlarge):
↑ Reboot caused this glitch.
@drcyber, thanks for making a thread for this - I didn't know whether it was enough of an issue to do so myself
Repeating my question from the main thread (for the last time, don't worry): I am well aware that Joe & his crew might not be able to do/tell us anything about this, but maybe someone can shed a bit of light on this issue for me: Is this purely a hardware glitch of the battery itself? Do some sensors / parts of the measuring software need to calibrate themselves first? Is everyone experiencing this or just the few that have reported it here?

now its back, 14% for 15 hours now..

Try to monitor the kernel's power level sensors, and see if they change. There are 3 possible issues: the hardware isn't measuring correctly, the kernel isn't outputting the correct values, or the system itself is bugged, and doesn't handle the kernel's values correctly.
That's all I can say for now, as I neither have the device myself' nor the sources, as I am being in the hospital right now, but maybe I can give some theoretical help
Sent from my Nexus 7 using xda app-developers app

Same problem here

laufersteppenwolf said:
Try to monitor the kernel's power level sensors, and see if they change. There are 3 possible issues: the hardware isn't measuring correctly, the kernel isn't outputting the correct values, or the system itself is bugged, and doesn't handle the kernel's values correctly.
That's all I can say for now, as I neither have the device myself' nor the sources, as I am being in the hospital right now, but maybe I can give some theoretical help
Click to expand...
Click to collapse
Sparparts+ tells me that the mVolts are decreasing normally, so i guess the Kernel works correctly and it is just a interpreting issue.
Gute Besserung!

Gesendet von meinem FP1 mit Tapatalk

Maybe it's related. I looked at the power config XML in the framework res. And that was complete garbage. See the file in the other thread.
Chris
Sent from my FP1 using xda app-developers app

See
http://forum.xda-developers.com/showpost.php?p=49598488&postcount=337
Sent from my FP1 using xda app-developers app

chrmhoffmann said:
Maybe it's related. I looked at the power config XML in the framework res. And that was complete garbage. See the file in the other thread.
Chris
Sent from my FP1 using xda app-developers app
Click to expand...
Click to collapse
You're right, this file actually really is important
But the good thing is, it's relatively easy to fix I'm sure Fairphone should be able to bring up a fix quite soon, as they should have all values ready, and just need to insert them correctly

The other thing is, when loading the phone, it stucks for some time at 99%.
As far as I experienced it, it only comes, when you unload your phone to less than 14%
If you stop loading at less than 99% (aften unloading below 14%) you do not have the Battery keeping for hours at 14%.
Can anybody confirm this behaviour?
Edit:
I did not have the GPS active, regardless what the energy manager tells

haiag said:
The other thing is, when loading the phone, it stucks for some time at 99%.
As far as I experienced it, it only comes, when you unload your phone to less than 14%
If you stop loading at less than 99% (aften unloading below 14%) you do not have the Battery keeping for hours at 14%.
Can anybody confirm this behaviour?
Click to expand...
Click to collapse
yes after completly discahrge the 14%-Error seems to be gone, but i dont know for how long, but after the Update to 1.1 i was back again.

drcyber said:
yes after completly discahrge the 14%-Error seems to be gone, but i dont know for how long, but after the Update to 1.1 i was back again.
Click to expand...
Click to collapse
Did you had the 99%-Error when loading?
Or was it directly to 100% without the 14%-Error?

uhm, I may be wrong but doesn't the phone charge/uncharge/charge/un.. when it tends to reach 100%? So it stays at 99% the whole time

arghwhymustiregister said:
uhm, I may be wrong but doesn't the phone charge/uncharge/charge/un.. when it tends to reach 100%? So it stays at 99% the whole time
Click to expand...
Click to collapse
I think usually Android phones load to 100%, then drop to 90% and load back to 100% again. At least the Nexus S did so, IIRC.

No, if you wait long enough, it gets to 100%.
But the green LED comes earlier than 100%
Sent from my FP1 using xda app-developers app

But this 99% thing i never saw as a bug, because your Phone never tells you the full truth about the Battery, 100% is never really 100% , and never 0% because the battery would get damadegt ift its really empty or completly full all the time.
Here is a better explenation in German:
http://www.giga.de/downloads/firmwa...e-von-smartphones-lugt-und-warum-das-gut-ist/
and English:
http://forum.xda-developers.com/showthread.php?t=871051

But this 99%thing just happens, when you unload your phone to less than 14%. So IMHO it's correlated somehow.
I think the maximal capacity isn't right...
Sent from my FP1 using xda app-developers app

haiag said:
The other thing is, when loading the phone, it stucks for some time at 99%.
As far as I experienced it, it only comes, when you unload your phone to less than 14%
Click to expand...
Click to collapse
Can confirm, battery only gets stuck at 99% if discharged below 14% (click to enlarge):
haiag said:
If you stop loading at less than 99% (aften unloading below 14%) you do not have the Battery keeping for hours at 14%.
Click to expand...
Click to collapse
Can confirm, 99% is enough of a charge to make the battery information get stuck (click to enlarge):
drcyber said:
Here is a better explenation in German:
http://www.giga.de/downloads/firmwa...e-von-smartphones-lugt-und-warum-das-gut-ist/
Click to expand...
Click to collapse
Sehr informativ, vielen Dank!
All in all, I think there isn't much we can do about this without a properly set power-profile.xml in framework-res.apk, like @chrmhoffmann and @laufersteppenwolf said. Since I have not the faintest clue on how to correct the xml, I can only wait for Joe & the Fairphone team to answer this in the next round of questions - after they've adressed this week's questions, of course

simsalonaut said:
Nope, mine still gets stuck at 14%, no matter how much I had charged the battery before unplugging. This is after a discharge from less than 99% (click to enlarge):
Click to expand...
Click to collapse
Did you unload the battery before below 14% ? Than charge to less than 99%, afterwards the 14% thing shouldn't appear.
So 13% -> max 98% -> No 14% Stuck...

Why 'Android System' singly drains my battery so extremely fast?

Hi guys
I have HTC One M8. Android System drains my battery in an unbelievable way. I decide to know the reason. So, I did a reset factory and charged it 100% and then I powered it on and only after 6 min while the screen all of the time was off, the battery got 98%. In the following, I turned off the screen again and incredibly after 21 min without any usage the battery got 94%.
I really don't use the phone and the battery drains such this. Just guess what happen if I turn on screen and use it?!!! I really confused. I took 2 shot. Pls check them out. Android System Singly uses up to 90% of the whole usage.
(When I charge my father's G3 the battery is 100% after 5 min using wifi! Still no 99%!)
http://i.imgur.com/J8381SL.png
http://i.imgur.com/04GVOr6.png
http://i.imgur.com/BqgKPZj.png
http://i.imgur.com/pm9uDPN.png

is that happens after you flashed a rom and let it settled ?
you should measure the battery life after one day or more from flashing to make sure it's the right measurement after the cash cycle is done
Sent from my HTC M8 using XDA Labs

ahmed.ismael said:
is that happens after you flashed a rom and let it settled ?
you should measure the battery life after one day or more from flashing to make sure it's the right measurement after the cash cycle is done
Sent from my HTC M8 using XDA Labs
Click to expand...
Click to collapse
No. I'm on stock clean ROM
All begins to happen from last week.
I felt the battery drains faster than ever.
It was being more and more.
Yesterday, I do a reset factory to get rid of the problem.
But as I explained already I have it yet.
It seems I face with a faulty battery, doesn't it?
Is there any other related reason?
I forgot to add that the phone become very hot. Even in a very essential/primitive/normal usage. In an unprecedentedly way ...

Rainy_day said:
No. I'm on stock clean ROM
All begins to happen from last week.
I felt the battery drains faster than ever.
It was being more and more.
Yesterday, I do a reset factory to get rid of the problem.
But as I explained already I have it yet.
It seems I face with a faulty battery, doesn't it?
Is there any other related reason?
I forgot to add that the phone become very hot. Even in a very essential/primitive/normal usage. In an unprecedentedly way ...
Click to expand...
Click to collapse
maybe you have installed an app that doing this to your device
and you should take a look at recalibrating battery
here http://forum.xda-developers.com/showthread.php?t=2765663&page=3
and here http://forum.xda-developers.com/htc-one-m8/general/guide-how-to-recalibrate-battery-t3019290/page2
Sent from my HTC M8 using XDA Labs

After 2 h and 36 m without any usage and off screen it got 64 !
WoW
Pls say sth

Rainy_day said:
After 2 h and 36 m without any usage and off screen it got 64 !
WoW
Pls say sth
Click to expand...
Click to collapse
maybe off topic but had to ask
is those screenshots from the stock m8 rom ?
doesn't look like sense 7
and more alike sense 8 and it's not the stock rom
Sent from my HTC M8 using XDA Labs

ahmed.ismael said:
maybe you have installed an app that doing this to your device
and you should take a look at recalibrating battery
here http://forum.xda-developers.com/showthread.php?t=2765663&page=3
and here http://forum.xda-developers.com/htc-one-m8/general/guide-how-to-recalibrate-battery-t3019290/page2
Sent from my HTC M8 using XDA Labs
Click to expand...
Click to collapse
I said before that I reset the phone to factory state and didn't install any third party app.
In a very clean state.
I tried this calibration apps, no difference

Rainy_day said:
I said before that I reset the phone to factory state and didn't install any third party app.
In a very clean state.
I tried this calibration apps, no difference
Click to expand...
Click to collapse
what about my question above your latest post ?
and use the button combination in the threads i linked not an app to recalibrate the battery
Sent from my HTC M8 using XDA Labs

ahmed.ismael said:
maybe off topic but had to ask
is those screenshots from the stock m8 rom ?
doesn't look like sense 7
and more alike sense 8 and it's not the stock rom
Sent from my HTC M8 using XDA Labs
Click to expand...
Click to collapse
Currently, I'm on a custom ROM; I'm just trying another.
I can return to stock and take some shot, if you think it helps.
Next plan is installing a CyanogenMod ROM.
If It occurred again I buy a new battery instantly.

Rainy_day said:
Currently, I'm on a custom ROM; I'm just trying another.
I can return to stock and take some shot, if you think it helps.
Next plan is installing a CyanogenMod ROM.
If It occurred again I buy a new battery instantly.
Click to expand...
Click to collapse
first you post screenshots from a custom rom then when i ask about the cache cycle you said you were completely stock then you said you are on custom rom and tried to recalibrate the battery with an app (witch i believe it do nothing ) and probably you didn't read the threads i linked and didn't gave us any useful info to understand the situation so we can help
the last thing before buying a new battery run the appropriate RUU for your device and see how it's going
GOOD LUCK
Sent from my HTC M8 using XDA Labs

ahmed.ismael said:
first you post screenshots from a custom rom then when i ask about the cache cycle you said you were completely stock then you said you are on custom rom and tried to recalibrate the battery with an app (witch i believe it do nothing ) and probably you didn't read the threads i linked and didn't gave us any useful info to understand the situation so we can help
the last thing before buying a new battery run the appropriate RUU for your device and see how it's going
GOOD LUCK
Sent from my HTC M8 using XDA Labs
Click to expand...
Click to collapse
I have some good reasons why I said you I'm on stock when you ask me for the first time. Yeah! I remember!
I tested both before posting on XDA and the result was same. Mr.Ismael I certainly sure if I said I'm on CUSTOM you picked on CUSTOM ROMs and blamed it.
For this reason, I said I'm on stock in order to skip that MISTAKE IDEA that the custom ROM causes the problem
Just because getting rid of this mistake. No other reason.