Develop Bugs

Solution to battery drain issue

Hi all, based on my experience of flashing various different ROMs, most of the ROM shouldn't have the battery drain issue. However, I discovered some times after flashing a new ROM the device gets much warmer and the battery drains very quickly.
When this happens the best solution is to shutdown the device, pull the battery out for 5 minutes or so to let it cool down. Then put it back and turn on the device and the battery drain problem should be resolved.
I haven't been able to find the reason behind that but it does make a big difference. With one of the ROM I flashed, the battery went from 100% to flat in less than a day even when no WiFi and no bluetooth are turned on. Then I recharged the device, pulled the battery out to let it cool down and put it back. After that the battery went back to normal with only around 3% consumption overnight.

I guess this is because with a flash of a new ROM the learned parameters for the battery will be erased, too:
http://www.freepatentsonline.com/20020105303.html
So the more charging/draining cycles you do this should improve again.

Htc Desire Shuts down at 40-50% battery

Hey guys,
Assuming you have read the title there is something weird about my phone.
It shuts down at 40-50% battery (before it shutsdown it says empty battery briefly and then the htc flash screen appears and shutsdown).
The weird thing is the following:
It shuts down at let's say 40% battery, but when it re boots the battery is litterly empty (even when i boot in recovery it says --%, and when i plug the charger it starts at 0% again).
I have tried:
Battery Calibrator
Empty full fill up with wall charger and also tried usb charger.
Screaming @ phone
wiping battery data in recovery (4ext recovery)
The thing i am most confused about is that it goes out at 40% and when i turn it on again it's 0%. This never happened as it happened for the first time 2 weeks ago, confused. I tried different roms and it still happens (even ICS roms).
I wouldn't really mind if my phone would shut down at say 20% when it says actually it's @ 20. But as i said before: It says it's 40 (batterij indicator htc sense half full) and then shutsdown realizing after reboot it's completely empty.
Any help is much appreciated!
Mendel

Shutting down on let's say 15-20% is quite normal, but I never heard of one shutting down at 40%
Are you using the stock battery, that came with your device?
Sent from my HTC Desire using XDA

Any chance to try another battery? Seems really strange cause in most cases if you wipe battery stats you get your phone shutdown at 20%, not 50%.

Its most likely a bad battery that needs to be replaced specially if tue same thing happens when using a different rom.
via xda app

Yeah i know it seems so weird that's why i started this thread.
Before i buy a new battery:
What could be the cause that the phone goes out at 40% (or 30) and when it reboots it's empty.
Seems like the phone or the battery aren't in "sync" until it reboots to show it's empty.
Any tips or suggestions?
Thanks!

mendelmusic said:
Yeah i know it seems so weird that's why i started this thread.
Before i buy a new battery:
What could be the cause that the phone goes out at 40% (or 30) and when it reboots it's empty.
Seems like the phone or the battery aren't in "sync" until it reboots to show it's empty.
Any tips or suggestions?
Thanks!
Click to expand...
Click to collapse
I'd like to think of it similar to laptop batteries that have gone bad... you plug your laptop to it's power supply, it says fully charged but as soon as you pull it out from it's power supply it drops to 50% in minutes and then goes off. The battery cannot hold the charge anymore.

It can only mean that the battery's life is at an end. The only thing you can do is to change it. I suggest that you stick to original HTC battery as the "ChinaMade" ones will die a lot faster and you'll have to change it sooner than this one.
Regards.
Pushu.X

Hey guys!
I know this thread is started since several months but I actually have the same problem : I have a HTC Desire and its shuts down at about 50% and when I reboot it, it says the battery is empty.
I tried several times to recalibrate the battery (and to do all the things MendelMusic said in his post actually) but nothing changed.
MendelMusic, did you finally manage to solve your problem?
Anybody have a solution or any ideas?
Thanks!

FreakyC said:
Hey guys!
I know this thread is started since several months but I actually have the same problem : I have a HTC Desire and its shuts down at about 50% and when I reboot it, it says the battery is empty.
I tried several times to recalibrate the battery (and to do all the things MendelMusic said in his post actually) but nothing changed.
MendelMusic, did you finally manage to solve your problem?
Anybody have a solution or any ideas?
Thanks!
Click to expand...
Click to collapse
Mine used to shut off around 32%. This forum fixed this issue:
http://forum.xda-developers.com/showpost.php?p=24599586

Battery drain?
It's called battery drain. I have it too, but only at 10/20%?
If someone knows a fix, please send it to me

AW: Htc Desire Shuts down at 40-50% battery
Probably your batteries are just weak now. I'd recommend you all to invest 5 bucks in a new battery. Actually that helped at my old desire. Greetings

Thanks for your answers!
I tried the link of madreef and it didn't change. I will try again, maybe I did it wrong (hope it will work this time...)
@dschibril : I don't think my battery is weak because the problem occured as soon as I changed the ROM (CM10). The battery was perfectly ok before that.

battery drain
FreakyC said:
Thanks for your answers!
I tried the link of madreef and it didn't change. I will try again, maybe I did it wrong (hope it will work this time...)
@dschibril : I don't think my battery is weak because the problem occured as soon as I changed the ROM (CM10). The battery was perfectly ok before that.
Click to expand...
Click to collapse
Hello, I have the same problem with you. Did you manage to fix it and how? Have you tried a brand new battery so far?

It has to do with the Desire's poor battery age management system. Li-Ion batteries age, meaning that, as time passes, they're gonna be able to hold less and less milliamps. After almost two years, my Desire's battery can only hold 82% of the original ~1400 mA charge.
The only way around this is to use the Nexus One Battery Calibrator (Nexus One and our Desire share the same hardware underneath the hood). You'll need a compatible kernel and some patience. Instructions in this post.
My 2 cents: if your battery is only able to hold less than say 75%-80% of its original charge, then you should replace it. Li-Ion batteries age in such a way that they suddenly go dead, so it's not worth taking the risk.

Later Edit - If your Desire shuts down at say 40% - 50%, that means that your battery is 40% or 50% gone, so it's time for a replacement. I'd still try the battery calibration method i wrote about in the above post, just to determine if it's a freak software error or the battery's fault.
P.S. - Wiping battery stats does nothing to solve most issues (for the Desire, at least).

My phone turns off sometimes at 50%, sometimes at 80% of battery.
I have new battery now (original one) and it is the same. Phone turns off, only when it is connected to charger it does not.

Hiii
My hTC Desire 728 shut down when then battery showing 50% to 60% in charge. What is the remedies?

Phone was 25% battery, But 50% battery after reboot?

Hey guys, I've had my phone for 4 or so months now and I always charge it while my phone is off and never had any charging/battery issues until today, I decided to charge my phone while it's on and it charged up to 25% and I restarted my phone without removing it from the charger and after it booted back it it's showing 50%, I restarted a few times, tried a cold boot, it's still 50%.
Is this a known issue with this phone? does anyone know what's causing this? I've never had this happen before.
EDIT: After this happened I ran my battery to 0% so I can attempt a battery calibration and when I poped it on the charger it showed my battery was actually 0% and showed a yellow hazard triangle thing (normally it only drops to 1% and there has never been a yellow triangle before)

Sometimes the Android system can incorrectly report a battery charged. I have had it happen to me on my Nexus by about 10%, but have not had it happen to me on my G3. I would not worry about it too much if it only happened to you once. If in continues you to jump around in battery percentage, then I would suggest getting a replacement battery. Keep in mind to try not to leave it charging for very long after reaching 100%, from my experience it can effect a battery's ability to hold a charge if that is done repeatedly. Which means do not leave it charging overnight while you are sleeping. Also I would not suggest running it until 0%, I would imagine a sudden shut down of the Android Operating system is not a healthy thing for it either. Just like it is not good to go up to a computer and just pull the power cord.

AndroidPurity said:
Sometimes the Android system can incorrectly report a battery charged. I have had it happen to me on my Nexus by about 10%, but have not had it happen to me on my G3. I would not worry about it too much if it only happened to you once. If in continues you to jump around in battery percentage, then I would suggest getting a replacement battery. Keep in mind to try not to leave it charging for very long after reaching 100%, from my experience it can effect a battery's ability to hold a charge if that is done repeatedly. Which means do not leave it charging overnight while you are sleeping. Also I would not suggest running it until 0%, I would imagine a sudden shut down of the Android Operating system is not a healthy thing for it either. Just like it is not good to go up to a computer and just pull the power cord.
Click to expand...
Click to collapse
Thanks for the input.
I never leave my phone on the charger while I sleep since it only drops 1% while I sleep. My phone actually only goes on the charger like 3 times a month
I know it's not good to fully drain the battery very much, I was just draining it to attempt a battery calibration in the os. And when I do this my phone usually only drops to 1% then dies, but all of a sudden it dropped to 0% this time and showed a big yellow triangle with a big exclamation mark in it
Anyways I reflashed my rom in hopes I can flush the problem out. In 4 months of owning this phone I've never seen this warning before.

This is almost exactly what happened with my old phone (Samsung Captivate Glide). If this continues to happen, it is one of the first signs of the battery failing. But if this is a one time thing, I wouldn't worry about it.
In my case, the battery was going bad. It started going from any % battery, down to 0 instantly, forcing a shutdown. After rebooting, It would show a decent charge (~60% most of the time), but would do the same thing within 5 minutes. At first it only acted up like this once a month, but it became more and more frequent that it happened every day, after using the phone for only 15 minutes. The only fix is to get a replacement battery.

fire219 said:
This is almost exactly what happened with my old phone (Samsung Captivate Glide). If this continues to happen, it is one of the first signs of the battery failing. But if this is a one time thing, I wouldn't worry about it.
In my case, the battery was going bad. It started going from any % battery, down to 0 instantly, forcing a shutdown. After rebooting, It would show a decent charge (~60% most of the time), but would do the same thing within 5 minutes. At first it only acted up like this once a month, but it became more and more frequent that it happened every day, after using the phone for only 15 minutes. The only fix is to get a replacement battery.
Click to expand...
Click to collapse
tyvm, This is extremely helpful info to keep in mind. Now that you mention it I have seen the battery kinda swollen up a couple times when it got hot, only ever so slightly but I did notice it.
If my issue persists i'll defnitly try a new battery, thanks for the tip

[Q] Battery level detection issues with HTC One M8 (Sprint)

A few weeks ago I rooted my phone with the latest version of TWRP and installed Liquid Smooth as my OS. I haven't had any problems with it until today, when it died (as expected, since I did not charge it for a few days) and I began to charge it from 0%. I began to charge it and noticed that it charges ridiculously slow even from a wall outlet. The bigger problem is that the OS detects a different battery level as the recovery tool. For example, I can leave my OS booted up while charging for 30 minutes and it will display something like 20% battery. Then if I shut it off the battery icon and the recovery tool (TWRP) will display anything ranging from 0-20%. It is random, too. One second it could be 15%, then next time I reboot it might say 5%. The problem then is that when I boot up the OS, it uses the percentage that the recovery tool displays. So if I shut off the phone when the battery displayed 30%, then next time I boot it up it will display the battery number from the recovery tool (anything from 0-30%). I have been charging and rebooting my phone for an hour now and it should say something like 60% but it only reads 21%. Is there any way to fix this? What happens when my battery really reaches 100% but my phone keeps charging it because it thinks it is lower? Is this dangerous? Any help would be appreciated.

(FIX) Battery Die Suddenly.

Hello Guys like me many of you have same problem with battery life, since i updete to MM my Battery start to droping very fast and suddenly die sometimes at 20% sometimes at 30% sometimes at lower %.
Something doing this we have lost all settings and after we boot the device again have to set up everything from scratch.
At the begining i was thinking my battery is DEAD and need a replacemant but in the past few months when i read hundred of Threads regarding this issue i realize it is not possible often after MM Update or flashed a MM ported ROM from HTC 10 this to heppans to so many users on the same time.
Ive tryed almost everything from fully Discharge to cleaning Caches Art etc and re flashing few times clean a new ROM nothing helps at all even some software for calibration make the things worse.
In this thread i found a solution given my HTC themself : http://forum.xda-developers.com/htc-one-m8/help/phone-loses-settings-apps-battery-dies-t3375980
And i did try it several times without Luck
I did keep reading and found out that really Holding Volume UP + Volume Down and Power Button did clean the Battery Cache but i was doing it all the time wrong.
What i did try is this:
Turn off the Phone lets says you have 40 50 % battery left.
Wait for a minute or two, then Press and Hold Volume UP + Volume Down and Power button for at least 6 Restarts, release the buttons when your device swtich ON after this 6 restarts and see your Battery %, usually what gona heppand there will be diference in the reading. ( When doing this DO NOT PLUG YOUR DEVICE FOR REACHARGE)
in my case doing that before the operation i had about 46% after that i have 55% this is the 1st thing i spot on.
After i did this, start using my device with heavy use and i saw the battery behave normal and the droping its not so fast like before in order to chek do i have any more wrong readings i decide to prepare the test again.
Switched of the Phone at 40% after all the restars and turned it on i had 39%
so i think this was normal and the battery do not have anymore any wrong reading %.
Start to use hard the device watching videos listen music 1st think i notice is the % are droping really slow not like before.
At exactly 15% Battery left i recive a Warning like it should be!!! (i didn`t recive any warnings like this in the past few months) then i keep using it hard and waited the battery to drop even more to see whats gonna heppand.
Well at 5% all was perfectly fine NO restarting at all.
At 2% i put my device for reacharge and after the full recharge to 100% now seems the battery to HOLD really Good 24 hours latter with intensive use of the device the % are droping really slow like it should be.
Now its seems that all is fine.
Try this and report back.
Its important DO NOT PLUG THE DEVICE when you doing this! Its make SENSE even if from HTC says PLug it ON (DO NOT) because when you cleaning the Battery Caches you want it CLEAN not on the same time that power from the charger to reach your battery this can lead to wrong INFO again so its really make sense you have to do it without to Plug in order to see the real % you had.
Later on i will make some screen shoots to show you how the battery Hold after this procedure.
its seems now i lose 2% per 1 hour in standbay witch is PERFECT for old device.

I've also had this issue. Didn't know about the volume button trick. Well now its too late and the battery is totally shot I think and won't even turn on or charge. Don't know what to do about getting all.my unsaved data off the phone. Was wondering if it would be possible to temporarily hook up a battery from my old m7 just to get the data off my m8. Anyone have any input on this? Is it possible to just temporarily connect an m7 battery to an m8?

Good lord..
I have the same issues for over a year now, so I had to test it out.
Before the restarts my battery had 52%, now it has 13% (battery saving mode is enabled, something i havent seen for years...).
I hope this problem will be fixed now.
I will give an update after a couple of days to see if it actually worked.
I'm running lineage os 15.1 oreo with sense.
Thanks anyway!

I held it for 6 restarts but it didn't turn on automatically. I had to let go of the buttons. Battery dropped from 69% to 48%.

Held it for 6 or 8 restarts and dropped from 40% to 18%, hope it will make a change. Thanks for the guide!

Update to my previous post: Battery lasts a longer, but dies at 22% percent, guess its the problem in the battery and cant be fixed via software

Did you guys get successful preventing sudden phone-off?
I recently bought this device. It was already updated to marshmallow. I did the volume button thing, at first htc's way. Then I saw this way and tried that. In the very next boot,everything is okay, battery drain till last drop. But in subsequent boots, problem reappeared . I tried wiping cache partition with twrp. But the problem comes again. Did you guys get it solved 100% in one time? Did I miss something? Or is it like me everywhere ?

Why do it at 40-50%?