I have a issue with my Mi9, I bought it used and the battery it came with was not the original one, it was from a Mi A1 if I remember correctly (BN41). After replace the battery with original battery, the battery works regular like for one month.
I installed a custom roms and all works fine, but the battery didn't last as long as i expected so i decided to look into it.
And the kernel files gaves me an incorrect number for capacity (mAh) of my battery. I remember I remember that the file charge_full gave me the result 1633000 (1633 mAh), I changed this and try to calibrate to the real capacity, but here comes the problem, the battery started draining for obvious reasons (not calibrate).
After calibrate the battery, battery drain problem is gone, but when i started to install custom roms, the battery the battery instantly went out of calibration, maybe only the miui based roms don't have this issue, but the other yes, and the miui based roms, when i restart the phone like 2 times, they modified the value of the battery and decreased it.
The battery degraded after a few months, so i replaced it. But the problem continues.
Anyone have a simular issue or knows what happen?
Thanks people of the community.
I have also been having issues since installing a different rom where my battery started dyeing at 10% and a few weeks later it started dyeing at 20%. I'm not sure if this is a software or battery issue as I haven't tried changing the battery yet. How did you go about calibrating your battery?
ihsaan said:
I have also been having issues since installing a different rom where my battery started dyeing at 10% and a few weeks later it started dyeing at 20%. I'm not sure if this is a software or battery issue as I haven't tried changing the battery yet. How did you go about calibrating your battery?
Click to expand...
Click to collapse
i think is a battery issue, these happn to me. Try back to stock rom and calibrate the battery, use the phone until phone power off without screen off and i think these calibrate automatic, if not, try to modify values of sys/class/power_supply/bms/charge_full and sys/class/power_supply/battery/charge_full with less values, but it's more complicated, don't try this if u don't know i think (calibrate is bad for the battery life, but if u do one time it's ok).
I don't recommend modify the values of charge_full file because future problems with the battery.
Ok thank you I'll try to drain the battery and full charge it.
ihsaan said:
Ok thank you I'll try to drain the battery and full charge it.
Click to expand...
Click to collapse
let them charge 0 to 100 without turn on the phone, or these didn't work
Naet said:
i think is a battery issue, these happn to me. Try back to stock rom and calibrate the battery, use the phone until phone power off without screen off and i think these calibrate automatic, if not, try to modify values of sys/class/power_supply/bms/charge_full and sys/class/power_supply/battery/charge_full with less values, but it's more complicated, don't try this if u don't know i think (calibrate is bad for the battery life, but if u do one time it's ok).
I don't recommend modify the values of charge_full file because future problems with the battery.
Click to expand...
Click to collapse
I tried to calibrate the battery and it didnt work so I got a new battery but the issue persists?
Before I try to modify the battery values I would like to find out if its not possible that through the years of formating, wiping and flashing some of the system partitions and system files may have gotten corrupted? or maybe I wiped a partition I was not suppose to?
Naet said:
let them charge 0 to 100 without turn on the phone, or these didn't work
Click to expand...
Click to collapse
Xiaomi programmed obsolescence on battery
H, since I updated from miui 10 to miui 11 and even now that I have miui 12 I have noticed that the battery doesn't last as long as before. I state that since I purchased the phone (July 2019) I have always charged the battery in the best way...
forum.xda-developers.com
i had news with these battery problems. Recently i changed my battery (before I say that) and the global rom works normal, not speacially a marvelous, but it's ok. I find a miui based rom called "One Os" and the battery works really great with this rom.
I calibrate the battery again and it works, nice battery for all day, like 15% or 20% than global rom.
This rom is xiaomi.eu based but more debloated.
I don't think this rom have a better performance/battery than miui 11, little buggy in my opinnion, but for the battery and with my use, i don't have to charge like 2 times per day.
cepheus:/ # cat /sys/class/power_supply/battery/cycle_count
0
at /sys/class/power_supply/battery/charge_full <
3259000
What would I change that to?
ihsaan said:
cepheus:/ # cat /sys/class/power_supply/battery/cycle_count
0
at /sys/class/power_supply/battery/charge_full <
3259000
What would I change that to?
Click to expand...
Click to collapse
if the kernel gives that values, don't change it, the cycle count log is not modifiable i think. try don't touch that
I think it's a battery problem
Related
Hi, I recently installed MIUI 3 and seem to be getting some problems with battery life.
What I've done so far:-
-Installed MIUI 3 with the SpeedMod kernal (as directed in the manual). Battery life dropped to 12hrs
-Reset battery stats, no change
-Installed MIUI 3.3. Battery went back up to ~30hrs
I thought 3.3 fixed it but after a day the battery life dropped by half. After another day it dropped by half again. Now it's only lasting 6hrs, and when on charge it doesn't reach 100% charged but stays at 98% even overnight.
What is going on with this thing?
Half of MIUI threads is about battery drain. There is no solution until now.
yken said:
Half of MIUI threads is about battery drain. There is no solution until now.
Click to expand...
Click to collapse
They're all like 1 year old. The battery was supposedly fixed in the latest release, and I know someone with the same phone, using MIUI, and they don't have this problem.
I think it might be something to do with the speedmod kernel. I don't know anything about the compatibility of kernels and MIUI so i just followed the instructions in the manual and used speedmod
I don't really know what's going on... in my phone the battery lasts for around 60 hours, maybe more, whatever rom/kernel I've used...
I've been using all of galnet's muiu and still have to find a battery issue. In my particular case, I don't use GPS, so it's off all the time. I don't think that's the issue though...
It's a known issue of CM7/MIUI.
no solution at the moment
Sorry but what is CM7?
And if there's no solution, how can someone with the same model phone not have the same issue?...
MIUI has battery problem and its not solved. If you disable data, gps, sync...
it saves some.
I will look into that and try to help!
jguedj said:
I will look into that and try to help!
Click to expand...
Click to collapse
The 5th thread you have posted this reply to in the last 2 hours?! Why?!
Sent from my GT-I9000 using XDA Premium App
So everyone using MIUI puts up with a battery only lasting 6 hours and my friend is lying to me? >_>
btw disabling data doesn't make that much difference.
madcap_ said:
So everyone using MIUI puts up with a battery only lasting 6 hours and my friend is lying to me? >_>
btw disabling data doesn't make that much difference.
Click to expand...
Click to collapse
I think that this is as much a cm7 thing, as anything else, and most people just tweak and seek til they find a combination of things that work, so worth looking in rhe relevant threads and reading back
Sent from my GT-I9000 using XDA Premium App
Well for anyone interested I found the problem. I tried flashing with the latest SpeedMod kernel, phone wouldn't boot, and I had to reflash the entire bootloader with MIUI's modified Froyo
Now the problem I noticed when I went to install MIUI.. the zip on my phone was 2.2 instead of 3.2.
NFI how I ended up with that outdated version! So the latest 3.3 seems to have fixed it now. Phone has been on for almost 20 hours and only dropped 30% in battery. That's more like it.
Although this did happen the first time, it seemed OK and then kept dropping by half capacity each day.. But if I really was somehow using 2.2 then hopefully that's all it was
I found out yesterday that my phone doesnt really go idle because of some google process waking my phone notoriously, and probably thats why it uses more battery. I also have very week signal (only 3g) which makes my phone use more battery than normal, but on non cm7 roms i made it one day with no problem. Right now I'm on galnet's miui and this is really fantastic rom, but battery wont last one day in my case. So the idle problem is the case i think... yesterday I closed gapps process before i went to sleep, and my phone was sleeping nicely too This process is caused by android market, and miui doesnt close it up. I also freezed gmaps - someone in galnets thread said it also drains battery. Well I'll see in few days how the battery will behave.
madcap_ said:
Hi, I recently installed MIUI 3 and seem to be getting some problems with battery life.
What I've done so far:-
-Installed MIUI 3 with the SpeedMod kernal (as directed in the manual). Battery life dropped to 12hrs
-Reset battery stats, no change
-Installed MIUI 3.3. Battery went back up to ~30hrs
I thought 3.3 fixed it but after a day the battery life dropped by half. After another day it dropped by half again. Now it's only lasting 6hrs, and when on charge it doesn't reach 100% charged but stays at 98% even overnight.
What is going on with this thing?
Click to expand...
Click to collapse
Also Battery Calibration.apk (can be found in market) works to calibrate your battery properly.
56hrs without recharging, 22% battery still remaining. So clearly it's not a problem with CM or MIUI any more
I have exactly the same problem.. tried the battery callibration app..also tried the wipe battery stats article.. i ve finished recharging 100% 2hours ago... now my phone is 55%..no gps no games.. 2 phone calls for 2min each.. i love the rom and hate the battery
sgs i9000..miui v4 with its kernel
madcap_ said:
56hrs without recharging, 22% battery still remaining. So clearly it's not a problem with CM or MIUI any more
Click to expand...
Click to collapse
HOW??????????????????
Hi, I would like to know the best way to measure my battery health. For about a month my battery starts to drain fast. I know my phone is already old and battery don't handle the same charge, but I have recharged the phone all night long and in ten minutes using wifi to just update some apps the battery just gone.
It is just ridiculous as I don't use any different configuration.
To be more specific, my phone configurations are:
- Cyanogenmod 7.2 by vo-1 (31/06/2012) deodexed by me;
- Firekernel Unnoficial OC (22/07/2012), CPU governor: smartassv2, max 787, min 245;
- Adrenaline Engine 4.2b;
One more thing. I was facing the same problem with blackhawk kernel.
I just think a battery can't die a sudden.
Could anyone help me with this?
Floydroider said:
Hi, I would like to know the best way to measure my battery health. For about a month my battery starts to drain fast. I know my phone is already old and battery don't handle the same charge, but I have recharged the phone all night long and in ten minutes using wifi to just update some apps the battery just gone.
It is just ridiculous as I don't use any different configuration.
To be more specific, my phone configurations are:
- Cyanogenmod 7.2 by vo-1 (31/06/2012) deodexed by me;
- Firekernel Unnoficial OC (22/07/2012), CPU governor: smartassv2, max 787, min 245;
- Adrenaline Engine 4.2b;
One more thing. I was facing the same problem with blackhawk kernel.
I just think a battery can't die a sudden.
Could anyone help me with this?
Click to expand...
Click to collapse
There are a few things that can be causing this, but the first thing that you can try is to wipe your battery stats using "BatteryCalibration" app. After flashing a few things, it's best to do this. I had the same thing happen after flashing my third ROM or so.
After that, it basically comes down to the apps and widgets that you have running. Shut them off with a task manager so they don't end up draining your battery, but it might not be that either....
The only other thing that I can think of is that I heard in another thread (I really wish that I could find it again ) that the ace has a motherboard fault that causes it to drain faster than usual.
Other than that, all I can say is that the Ace generally has poor battery life, and it really does suck, but I don't really know how much more you can do. You could try flashing a stock-light ROM and see if it does the same thing (wipe battery stats too). But I would say is that you should try wiping the stats and see if anything changes.... Other than that.... I`m out. Hopefully it helps, and if it doesn`t, you might need to take it in (Service Center or wherever you bought the phone).
Maybe try searching in other threads (as it is a common problem) but besides that, goodluck :fingers-crossed:
thatdude02 said:
There are a few things that can be causing this, but the first thing that you can try is to wipe your battery stats using "BatteryCalibration" app. After flashing a few things, it's best to do this. I had the same thing happen after flashing my third ROM or so.
Click to expand...
Click to collapse
I forgot to mention but I already did the calibration, using the app and manually to see if I could get different results.
I even tried to force a better charge, charging the phone off, waiting till 100%, unplugging and recharging, till the phone gets 100% again.
Ace's battery isn't good, but a month ago my phone was holding 12-14 hours without charge, using wifi a lot, that's why I think something is wrong.
Well, I'm flashing the original stock rom to see if get some change.
Thanks about the motherboard information, this is new for me :good:
Gonna see tomorrow if the battery holds better with the original stock ROM.
Thanks again!
Wiping the battery stats is a myth. All it does it clear the battery usage screen!
Android has a built in tool which can try to check the health of your battery.
Open the dialer
type *#*#4636#*#*
then go to battery information
Look at battery health.
Feedback
Just to give a feedback, my battery was really damaged. I bought a new one, stock because I didn't find other, and the phone now easily last a day, even using wifi a lot.
But that's not the only reason why I posting here again, I want to share how my old battery is. Comparing with new one, I realized that the old battery had stuffed something about 5 mm
If you pay attention, you'll see the small deformation.
Don't know yet what could have cause this, but I think it was heat and bad recharges...
Thanks for the help :good:
Floydroider said:
Just to give a feedback, my battery was really damaged. I bought a new one, stock because I didn't find other, and the phone now easily last a day, even using wifi a lot.
But that's not the only reason why I posting here again, I want to share how my old battery is. Comparing with new one, I realized that the old battery had stuffed something about 5 mm
If you pay attention, you'll see the small deformation.
Don't know yet what could have cause this, but I think it was heat and bad recharges...
Thanks for the help :good:
Click to expand...
Click to collapse
I'd recommend you to use SetCPU to prevent this on your new battery. Set up a profile with sound notification when it hits around 40degree, and underclock it at the same time.
I faced a similar problem. Battery was hardly six months old when it died but it was my fault. I was running a wi-fi tether and continuously charging it for about two days. :silly:
Got a new one under warranty. Been a year with the new battery and just recently facing problems with it. 3G just sucks the life out of it.
OK I just got 3g on my phone (yay for promotional 6gb plans!). But yeah, the 3g definitely kills my battery. I used to be able to go two or three days with very little use. Now I can only go one day even with standby with my 3g enabled. As long as I can put my phone on to charge before it dies, its all good to me
Finally with my 3g going, I understand everyone else's pain with the battery life haha
Sent from my GT-S5830 using xda premium
Dear fellow enthusiasts,
since a couple of days, I'm experiencing sudden device crashes when I'm using it for network related activities, mostly over the 3G network (for example, I'm typing out a message on the Facebook app, and the phone goes into boot loop or simply "shuts down"). I had only recently upgraded to the 4th beta build for the Cyanogenmod 9, hosted here on XDA , so I suspected it would be related to this. However, upon reinstalling both the previous version and the new mod from absolute scratch, the issues remained the same.
I had noticed that after each crash, the battery charge displayed as very low (2-6%), whereas I'm certain the charge should be much higher. So I thought it might be some sort of corrupt battery-cache issue or something.
However, and here's my actual question, I just now noticed that my I9001 battery is slightly bulged, on both ends. This bulge starts just above the white printed SAMSUNG lettering, and it ends just bellow the QR code. I can't for the life of me remember if or not this is normal, so could someone please confirm this for me?
And while we're at it, could a faulty battery affect my performance as such (making my phone crash etc)?
Thank you very much in advance for any help or information anyone could give me.
I confirm, battery is slightly bulged in those places but it looks like a production "thing" to me (I hope I understood what you mean), no need to worry, I guess. Looks like corrupted battery stats, try to wipe it via recovery (phone fully charged, plugged in - then wipe battery stats). After that, i recommend one or two full battery discharge - charge cycles. I've noticed hovever, that after each full factory reset I have for about 20% better battery drain, than after flashing many ROMs, kernels and updates (cache and dalvik cache wipe only), my battery drain is getting pretty annoying. Try a full factory reset, if wiping battery stats didn't work.
Jacol82 said:
I confirm, battery is slightly bulged in those places but it looks like a production "thing" to me (I hope I understood what you mean), no need to worry, I guess. Looks like corrupted battery stats, try to wipe it via recovery (phone fully charged, plugged in - then wipe battery stats). After that, i recommend one or two full battery discharge - charge cycles. I've noticed hovever, that after each full factory reset I have for about 20% better battery drain, than after flashing many ROMs, kernels and updates (cache and dalvik cache wipe only), my battery drain is getting pretty annoying. Try a full factory reset, if wiping battery stats didn't work.
Click to expand...
Click to collapse
Thanks a lot for the confirmation Jacol !
Anyone else who can confirm a bulging of the 1650mAh battery for the I9001? I'd like a large enough sample group if possible.
also happened to me
solved this problem by buying another battery...
Blumdum said:
also happened to me
solved this problem by buying another battery...
Click to expand...
Click to collapse
Thanks Blumdum, do you mean you also had your phone crash on you?
yes
i charged the battery
after some time my phone turned off
i restarted it and i had only 2% battery left
then i took a look on the battery stats and there was a huge drop from like 95% to 2%
Blumdum said:
yes
i charged the battery
after some time my phone turned off
i restarted it and i had only 2% battery left
then i took a look on the battery stats and there was a huge drop from like 95% to 2%
Click to expand...
Click to collapse
Thanks Blumdum, I've ordered a new battery, it should arrive within a couple of days, I'll confirm if this fixes the issue.
Same thing happened to me,i will order momax 1700mah
Sent from my GT-I9000 using xda premium
Hey people,
I received my new battery last night, I went for an Akku Powercell of 1800mAh. Charged overnight, been using it all day, no problems whatsoever to be found.
Thanks again for the assistance!
Swollen battery = defective!
I'm sorry but I've encountered this as well in the past. Normally working phone with sudden shut downs and huge drops in battery charge. It took me a long time to convince me that the battery was defective. So maybe this would save you guys some time in finding this out!
Verstuurd van mijn GT-I9001
Hey, try to use cm10 for a few days, if the problem gone then your battery is alright, and please stop using beta roms, regret are so buggy and slow: )
Sent from my GT-I9000 using xda premium
In general healthy batteries DO NOT swell. Buy a new one before it explodes or starts leaking...
Hey all, just because people keep on posting, the battery was indeed defective, the roms were absolutely fine and the new battery is performing marvellously!
Thanks again for all the input !
Jacol82 said:
I confirm, battery is slightly bulged in those places but it looks like a production "thing" to me (I hope I understood what you mean), no need to worry, I guess. Looks like corrupted battery stats, try to wipe it via recovery (phone fully charged, plugged in - then wipe battery stats). After that, i recommend one or two full battery discharge - charge cycles. I've noticed hovever, that after each full factory reset I have for about 20% better battery drain, than after flashing many ROMs, kernels and updates (cache and dalvik cache wipe only), my battery drain is getting pretty annoying. Try a full factory reset, if wiping battery stats didn't work.
Click to expand...
Click to collapse
I have the exact same problem with my sgs i9000-gt.
My phone turn off itself ( no restarts, its a complete shutdown ).
First, I thought i might be a problem of GB 2.3.6 rom i was using, so i updated to latest cm10 but the problem persists.
If you restart the phone after the shutdown than i shuts down within a minute again.
Also the battery drain is pretty fast. I notice the same bulges on the battery as reported in this post.
I did the battery calibration thing as some people suggested, but that does not solves the problem. However, it got rid of the fast changes in battery status which was happening before. Like when you restart after shutdown at 80% battery status, it will show like 2% battery left and after few minutes of charging it would boost back to 80-90%.
But still the battery drain is pretty fast. It discharges from 98% (i cannot get to 100% charge, 98% is highest) to 50 % within an hour, just idling.
And when i am around 40% or so and if i recieve some message and try to open a app it shuts down again.
I have ordered a new battery just in case. Will update here if that improves things for me. But i will still like advice on which is a more economical kernel and rom for i9000-gt? Some people suggested slim bean + semaphore on some forums but i would like to have some more concrete advice before i change more things without knowing the source of the problem. I would be grateful if someone can suggest what is best to use with some details( version, etc). Thanks for that in advance.
I thank you all (users + developers) for all the useful information provided on this forum, i learnt a lot although i still am not able to fix my problem . And I hope someone might come up with a concrete solution for this problem. If there is a solution which I might have missed, I thank you in advance again and hope you will be kind enough to point me in the right direction.
cheers
update: the phone stays alright if u dont do anything on it, but the moment you being doing something on it other than playing with system settings, like run some app, especially something that uses network / wifi, it shuts down. none of this happens though while its plugged in. it happens only when its on battery.
problems fixed so far after replacing the battery
maxffm said:
I have the exact same problem with my sgs i9000-gt.
My phone turn off itself ( no restarts, its a complete shutdown ).
First, I thought i might be a problem of GB 2.3.6 rom i was using, so i updated to latest cm10 but the problem persists.
If you restart the phone after the shutdown than i shuts down within a minute again.
Also the battery drain is pretty fast. I notice the same bulges on the battery as reported in this post.
I did the battery calibration thing as some people suggested, but that does not solves the problem. However, it got rid of the fast changes in battery status which was happening before. Like when you restart after shutdown at 80% battery status, it will show like 2% battery left and after few minutes of charging it would boost back to 80-90%.
But still the battery drain is pretty fast. It discharges from 98% (i cannot get to 100% charge, 98% is highest) to 50 % within an hour, just idling.
And when i am around 40% or so and if i recieve some message and try to open a app it shuts down again.
I have ordered a new battery just in case. Will update here if that improves things for me. But i will still like advice on which is a more economical kernel and rom for i9000-gt? Some people suggested slim bean + semaphore on some forums but i would like to have some more concrete advice before i change more things without knowing the source of the problem. I would be grateful if someone can suggest what is best to use with some details( version, etc). Thanks for that in advance.
I thank you all (users + developers) for all the useful information provided on this forum, i learnt a lot although i still am not able to fix my problem . And I hope someone might come up with a concrete solution for this problem. If there is a solution which I might have missed, I thank you in advance again and hope you will be kind enough to point me in the right direction.
cheers
update: the phone stays alright if u dont do anything on it, but the moment you being doing something on it other than playing with system settings, like run some app, especially something that uses network / wifi, it shuts down. none of this happens though while its plugged in. it happens only when its on battery.
Click to expand...
Click to collapse
I flashed back to stock samsung rom ( from the value pack) and the problem persisted.
today my new battery arrived and all the forementioned problem seems to be gone with the new battery, my phone seems to be working fine for last 5 hrs without any restarts or crazy battery drain. will test the same with custom roms again. As of now it only seems that problem was the battery.
Cheers.
thanks to the forum and developers
Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
iamthatmattguy said:
Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
Click to expand...
Click to collapse
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
v7 said:
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
Click to expand...
Click to collapse
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
iamthatmattguy said:
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
Click to expand...
Click to collapse
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
v7 said:
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
Click to expand...
Click to collapse
Bit of a dumb question, but where could I get stock from?
iamthatmattguy said:
Bit of a dumb question, but where could I get stock from?
Click to expand...
Click to collapse
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
v7 said:
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
Click to expand...
Click to collapse
Thanks, could I not just simply flash it with the recovery?
iamthatmattguy said:
Thanks, could I not just simply flash it with the recovery?
Click to expand...
Click to collapse
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
optimumpro said:
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
Click to expand...
Click to collapse
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
iamthatmattguy said:
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
Click to expand...
Click to collapse
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
[/COLOR]
optimumpro said:
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
Click to expand...
Click to collapse
I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
roushan84 said:
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I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
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You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
optimumpro said:
You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
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Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
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If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
optimumpro said:
If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
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I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
roushan84 said:
I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
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Just do what I recommended in the previous post: go to stock, fully charge and see how long the battery lasts on youtube: in 20 minutes, you should lose no more than 13-15% on a new battery, as opposed to go to zero. Some Z1 batteries have a problem: Mine died about 9 months ago. My old Xperia ION (which is a 2012 phone) battery is still going strong (lasts for at least 2 days on Jeallybean).
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
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I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
roushan84 said:
I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
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That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
Haha..
I know you don't have to plug-in your roms. I guess I will hold it for a day to see how my phone behaves. Major battery drain is when I play Clash of Clans. I am on CoC to check endurance. If not, them will move to Jaguar with Nov kernel on top.
I have realized that it's somewhere in November since there random reboots and battery issues started
optimumpro said:
That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
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I flashed latest Jaguar with Nov 1 kernel and c6902 modem (Version 4). Have also flashed 5.1 gapps (Micro version) and restored all my apps. have created Zip from titanium backup.
Phone still went off from around 75% battery. when restarted again, it came back with 45% battery, just to die within 30 seconds :crying:
After flash custom ROM cherish os then ancient os battery draining overnight too much. Can anyone tell me the solution Please
jamey090 said:
After flash custom ROM cherish os then ancient os battery draining overnight too much. Can anyone tell me the solution Please
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I think it's because Play Services is running in the background. Try restricting apps. Or you can try recalibrating your battery.
BigChungus321 said:
I think it's because Play Services is running in the background. Try restricting apps. Or you can try recalibrating your battery.
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Several apps won't work without play service.
So can't restrict that.
But how to calibrate battery, it will work ?
jamey090 said:
Several apps won't work without play service.
So can't restrict that.
But how to calibrate battery, it will work ?
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Yeah that's the use of "Google" apps obviously. Also restricting won't kill the app, it will just load notifications slowly. I mean you said also you change rom but still battery drain continues then yea, your battery might be displaying wrong percentage, calibrating it might help
I would suggest a clean install, to begin with, and mind what the developer says about the firmware needed. I am on ArrowOS 12L and can't tell any battery drain. Installed it 5 days ago and still have 20 odd per cent of battery left, waiting for the first full charge but I do not use any google apps/ services (gapps or else).
I really suggest also flashing latest Vantom kernel from telegram channel. first 4 days no battery drain on Pixel OS, at 5th day it started with 20-30% drain overnight. Then I flashed latest Vantom and until now, no problems anymore
Battery Calibration isnt really a thing anymore, modern batteries dont need it, google that info anytime, however, going into recovery and wiping cache etc, then turn phone off, fully charge battery to 100% before turning phone back on should correct any misreads. Do remember with modern Li Ion batteries, how you treat it will determine how long it lasts, maybe reading an article of 2 about how to look after your battery may help you to maximise its life, or in the end, you find you have a battery with the iphone issue, they end up only charging to about 80% on a full charge.
Fostel said:
I would suggest a clean install, to begin with, and mind what the developer says about the firmware needed. I am on ArrowOS 12L and can't tell any battery drain. Installed it 5 days ago and still have 20 odd per cent of battery left, waiting for the first full charge but I do not use any google apps/ services (gapps or else).
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Very wise advice
gazza35 said:
Very wise advice
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Just to add guys, its very important not to regularly completely drain your battery, that also can potentially damage it, always a good idea not to let it drop below 10% before fully recharging
I can recommend between 25 and 75 percent charging. In this way I've a old tablet with always display on (dim if not use) and acca charging controller in my house for house control, used 6 years without any problems (battery is still alive)
gazza35 said:
Just to add guys, its very important not to regularly completely drain your battery, that also can potentially damage it, always a good idea not to let it drop below 10% before fully recharging
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