sudden battery problem

optimumpro

Senior Member
Jan 18, 2013
6,267
13,597
253
I was getting 5 hrs of sot 3 days ago.:confused:
When the phone shuts down an anything above 20%, your battery needs replacement. Period.

Look at it this way: if your battery has let's say 12 cells, when 7 cells die, it will charge to 100% faster, because there is less to charge, but will also discharge or shut down faster, because the remaining cells can't hold the load. It will still show 40%, but because you don't have enough cells, the phone shuts down. If the battery apps show 1300ma capacity, that means you have lost almost 2/3 of the battery cells.

By the way, all battery calibration does is it resets battery stats, which is done anyway each time the battery is fully charged. So, any calibration app is useless (since Android 5 or 6, when Google introduced battery stats reset.
 
Last edited:

atifsh

Senior Member
Sep 24, 2009
2,489
382
153
Islamabad
When the phone shuts down an anything above 20%, your battery needs replacement. Period.

Look at it this way: if your battery has let's say 12 cells, when 7 cells die, it will charge to 100% faser, because there is less to charge, but will also discharge or shut down faster, because the remaining cells can't hold the load. It will still show 40%, but because you don't have enough cells, the phone shuts down. If the battery apps show 1300ma capacity, that means you have lost almost 2/3 of the battery cells.
.
this i understand, what i don't is the fact its sudden even now accubattery says 500 mah . phone now shuts at any number basically its a 15 min phone, pretty sure battery doesn't gets destroyed like this. does oneplus got any issues with QC 3 chargers? because that's what I'm using.
ill be trying a unbrick way or just flash to 9 just to double check.
 

optimumpro

Senior Member
Jan 18, 2013
6,267
13,597
253
this i understand, what i don't is the fact its sudden even now accubattery says 500 mah . phone now shuts at any number basically its a 15 min phone, pretty sure battery doesn't gets destroyed like this. does oneplus got any issues with QC 3 chargers? because that's what I'm using.
ill be trying a unbrick way or just flash to 9 just to double check.
Once you phone starts to shut down at 40%, from there it's a short road to death. In a week or so, it won't boot at all.

Don't do unbrick on an almost dead battery, as you might permanently damage your phone, if the battery dies in the middle of unbrick flashing. Mobile phones, unlike laptops, work from battery only. The function of the charger is to charge only, not to provide power to work.
 
  • Like
Reactions: atifsh

atifsh

Senior Member
Sep 24, 2009
2,489
382
153
Islamabad
Once you phone starts to shut down at 40%, from there it's a short road to death. In a week or so, it won't boot at all.

Don't do unbrick on an almost dead battery, as you might permanently damage your phone, if the battery dies in the middle of unbrick flashing. Mobile phones, unlike laptops, work from battery only. The function of the charger is to charge only, not to provide power to work.
got it. thanks

though already did a unbrick to 7.1 and boy somehow its louder.. hehe
now it wont do auto ota for some reason but im going with you and not upgrading it locally to 9.
just used it non stop for 1 hour on youtube and it went from 30 to 18 in 1 hour and shutdowns.
thou now it charges from 1% lets see how it works, if it goes through half a day ill try to sell it instead of replacing battery.
somehow i don't think it will be re-glued perfectly with these third party workers here.
 

optimumpro

Senior Member
Jan 18, 2013
6,267
13,597
253
got it. thanks

though already did a unbrick to 7.1 and boy somehow its louder.. hehe
now it wont do auto ota for some reason but im going with you and not upgrading it locally to 9.
just used it non stop for 1 hour on youtube and it went from 30 to 18 in 1 hour and shutdowns.
thou now it charges from 1% lets see how it works, if it goes through half a day ill try to sell it instead of replacing battery.
somehow i don't think it will be re-glued perfectly with these third party workers here.
Oneplus 5s actually have 2 screws that hold the back. So, it's more durable than glue only.

Years ago, I had Sony Xperia with expiring battery: it was pain until I replaced the battery.
 
  • Like
Reactions: atifsh

atifsh

Senior Member
Sep 24, 2009
2,489
382
153
Islamabad
Oneplus 5s actually have 2 screws that hold the back. So, it's more durable than glue only..
My problem is they don't glue properly or doesn't use good glue and that leaves lot of space around from where water drops can easily get inside.

I like to clean phone with wet hands / soap and than dry with towel.
Don't like greasy phone.
 

atifsh

Senior Member
Sep 24, 2009
2,489
382
153
Islamabad
Apparently oneplus were having issues on ota server's.
Received OTA and boy think I'm back to a new oneplus 5.

Thanks buddy for pushing me to replace battery and not blaming android update. LoL
 

vdbhb59

Senior Member
Feb 15, 2016
1,316
495
93
Apparently oneplus were having issues on ota server's.
Received OTA and boy think I'm back to a new oneplus 5.

Thanks buddy for pushing me to replace battery and not blaming android update. LoL
Lol. Never replace battery unless you know it is swelling or if it runs out on the last 15-20 faster than the last 5%.
Also, if you ever face issues, instead of calibration, delete the batterystat.bin file, and 2 reboot twice in a gap of 10 minutes. Then check 2 battery cycles, 1st at 0% and power down, and the 2nd at 1-2%, and you will know if battery is the issue or not.
 

atifsh

Senior Member
Sep 24, 2009
2,489
382
153
Islamabad
Lol. Never replace battery unless you know it is swelling or if it runs out on the last 15-20 faster than the last 5%.
Also, if you ever face issues, instead of calibration, delete the batterystat.bin file, and 2 reboot twice in a gap of 10 minutes. Then check 2 battery cycles, 1st at 0% and power down, and the 2nd at 1-2%, and you will know if battery is the issue or not.
boy i have checked or tried everything before this. basically i was in denial that i need a battery change.