how to calibrate battery?? - Xiaomi Mi 5 Questions & Answers

Hello this is my first post so im just wanna ask one question.
How to calibrate battery? Because everytime i restart my device the battery percentage goes down about 2-10%

razibrizal said:
Hello this is my first post so im just wanna ask one question.
How to calibrate battery? Because everytime i restart my device the battery percentage goes down about 2-10%
Click to expand...
Click to collapse
10% is a bit abnormal, 1-2% is normal since booting is a complex process involving a lot of resources. I don't usually calibrate battery as according to one of Android core developers a couple of years ago, batterystats file is recreated on every charge. If you insist, try BatteryCalibration app (root required, batterystats.bin is located in system partition).

leledumbo said:
10% is a bit abnormal, 1-2% is normal since booting is a complex process involving a lot of resources. I don't usually calibrate battery as according to one of Android core developers a couple of years ago, batterystats file is recreated on every charge. If you insist, try BatteryCalibration app (root required, batterystats.bin is located in system partition).
Click to expand...
Click to collapse
Will try soon

It's not about calibrate battery. Probably you're using a shop rom (not original rom). If you go to Xiaomi site, download the Global Rom and flash phone, you'll fix that.
So, one simoke way to calibrate the battery (I try do it 1 time per month), let the phone turn off without battery and put to recharge without turn on until 100%.

Related

[Q] calibration problems

so i understand the calibration gig, or at least superficially think i do, but i'm having a problem. as soon as i charge to 100 and click calibrate it immediately says it was successful without allowing me to drain the battery. this didn't use to happen. somehow i don't think i'm calibrating properly anymore. thoughts? am i completely off base and this is correct?
thanks in advance everyone
pendragon11 said:
so i understand the calibration gig, or at least superficially think i do, but i'm having a problem. as soon as i charge to 100 and click calibrate it immediately says it was successful without allowing me to drain the battery. this didn't use to happen. somehow i don't think i'm calibrating properly anymore. thoughts? am i completely off base and this is correct?
thanks in advance everyone
Click to expand...
Click to collapse
What do you mean by "allowing me to drain the battery"? When I click calibrate I immediately get that message as well and disconnect my phone from the charger. That's how it's always been for me.
that's reassuring. i meant that after pressing calibrate we're supposed to drain the battery for it to go successfully
Oh I guess this app doesn't work that way? I don't know I've never done that.
the way I understand it is that when you press calibrate, all it does is delete the battery stats file in the system. the reason you need to discharge it after that is because on the first full cycle the system will rebuild that file correctly to the ROM you are using.

[Q] Charging a 3500mAH Extended Battery

Hello all,
I just received my new battery from obostore.com. I have cleared battery stats but it seems to be charging and discharging at the same level as my previous stock battery. Could it be that I am doing something wrong?
Battery calibration takes a few cycles to accurately read your new battery.. give it 3-4 cycles and see from there.
An alternative way than clearing from cwm is to use an app called battery calibration.
Cheers.
Thanks. Yeah I have used the battery calibration app. I haven't done one cycle yet and I'm just testing to see how much battery power it's giving me. I really hope it's more than double the stock battery, else I fear I would have gotten ripped off.
Soulj4h said:
Thanks. Yeah I have used the battery calibration app. I haven't done one cycle yet and I'm just testing to see how much battery power it's giving me. I really hope it's more than double the stock battery, else I fear I would have gotten ripped off.
Click to expand...
Click to collapse
double the stock ? no for sure (from personal experience); just make sure u charge the battery 30 minutes after u see the "full battery notification".
deleting the batterystats file is pointless also all the app related since del the file dosent help.
read here for more.
http://forum.xda-developers.com/showthread.php?t=1445698
p.s. this has been confirmed by google as well.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
All right. Well is it me or does the battery not last that long. I was expecting 2 days for it to last. It lasts so far a little bit more than 24 hours. Or do I have to let it go through more cycles of charging?
Sent from my Optimus 2X using XDA App
Well.. i do still believe that new batteries require a few cycles before it performs at full potential..
But for the 3500mah will last twice as much as original.. unless the fat battery itself is original made by LG or a trusted brand.. I will take the capacity label with a pinch of salt.
-full charge
-calibrate
-full discharge, untill phone cant be turned on
-full charge back w/o break, preffered overnite aftr shutting down phone
-use it normal
-after your 3rd-4th charge(not including above procedure's charging cycles) aftr this you should notice improvement
During these whole procedure dont wipe data/ dont install new rom.
Evenif you cant notice difference then ask for refund if possible.
Sent from my LG-P990 using Tapatalk
Thanks. I am noticing some improvements right now yes. There are some apps which eat a lot of battery. Aside from apps, 3G tends to eat a lot of battery too. I think Skype also uses a lot of battery, to which I had to sign out. I'm on my 2nd or 3rd charge cycle and on this one, I am going to use it as normally as I can.

again .. galaxy note battery

This is my first post here. Am kinda new to the forum
Well, i know this issue have been said over and over. But i didn't get anything out of other threads
I have my new gnote on stock ICS for 6 weeks now. It's battery drain rate was about 1 % every 5 minutes on browsing. Then one day i installed game "angry gran 2" from 1mobile market, because it said on playstore not available for ur country. And since that moment the battery went crazy. Drain 1 % every 2 or 3 minutes. I uninstalled it a day later and the problem is still there. This was about 10 days ago
I checked running apps nothing is different than normal
I dunt use face book app
I uninstalled samsung push service
GPS and location services are always off
The mobile goes into deep sleep very well no problem with that acc to CPU spy. The processor which usually works is 200 mhz then sometomes 1200 mhz
All settings since the day i bought it are set to save energy "lowest brightness, sync is off .... Etc."
Now the battery does not work notmally unless every charge i remove the battery for few minutes and put it back' i did this today before i turn off my phone battery was 92 % remived battery put it back and it's 87% ! :S
Yester day about twice after going to sleep i find batter increased 1%
Can you help me please to spot where the problem is ?
I have better battery stats but i dunt understand it
And one more question please, does having large number of apps even if not running in the background cause battery drain ?
Thanks all will greatly appreciate any help
+1 on that. My note's battery runs really fast and I'm not even using it for hardcore gaming. The battery gets really hot at times too.
Sent from my Biowonder using KOH and NaOH
update: screen shot from better battery stats
Check these screenshots from better battery stats is this rate normal ?
Hi! Once I had a similar battery issue, but in my case it was after flashing a custom rom. Battery started draining much faster than usual. And sometimes battery percentage jumped up too. Have you tried to remove/insert battery, then fully charge your phone and when fully charged run "Battery Calibration" app from Play Store? Have a feeling it's not the solution for your battery issue, maybe a long shot, but still maybe worth a try if you haven't done that already?
Sent from my GT-N7000 using xda premium
opiujn said:
Hi! Once I had a similar battery issue, but in my case it was after flashing a custom rom. Battery started draining much faster than usual. And sometimes battery percentage jumped up too. Have you tried to remove/insert battery, then fully charge your phone and when fully charged run "Battery Calibration" app from Play Store? Have a feeling it's not the solution for your battery issue, maybe a long shot, but still maybe worth a try if you haven't done that already?
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?
someone26 said:
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?
Click to expand...
Click to collapse
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app
SpyderTracks said:
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
That is correct. The name of the app might be misleading. It does not do anything to the battery's physical condition at all.
The problem I had was that my "battery" suddenly started to drain very fast according to the battery icon in status bar. It dropped about 1%/min during screen off, and even faster with screen on. I charged my phone to 100% about 6 or 7 times. But as soon as I unplugged the cable I had that very quick drain. I guess the battery itself had much more capacity left than shown, it is in good condition... but that didn't help me because my note turned off when the battery icon showed it was low on % and I had to start charging again. Then I ran this app, which only thing it does is to simply delete batterystats.bin file if I understand it correctly. I don't know much about these stuff, but after that the usage time of my phone is back to normal again
Sent from my GT-N7000 using xda premium
---------- Post added at 09:42 AM ---------- Previous post was at 09:09 AM ----------
someone26 said:
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?
Click to expand...
Click to collapse
I just had a look at Play Store and all the apps I saw that does remove batterystats seem to need root. Probably it is a system file you can't touch without root access then Also, the battery issue you have might be caused by something else.
Sent from my GT-N7000 using xda premium
Well i wish it can be solved this way ... Coz other option am.gonna take is downgrading to GB then factory reset as i understood this won't brick my phone if I got it carrectly
May be it's calibration thing ... Check the attatched photo the batteru since 3 a.m. To 9 a.m. Is almost at same level or increasing .. Maybe it's some kinda of system calibratoon of battery indicator against battery fast drain while working .. I dunt know
In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
Can u give me ur battery plz
↖(^▽^)↗ Sent from Rego Galaxy Note ↖(^▽^)↗
SpyderTracks said:
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?
hahuhe said:
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?
Click to expand...
Click to collapse
Huh
Now iam understand my problem is solved m maybe because iam didnt charge phone when iam changed my rom
And when iam charged it for first time on this custom rom i see problem( battery incrase with itself) solved Thanks God.
Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
My battery is crazy. Yep in deep sleep some times it increase 1 % .... On the other hand while working with the phone it drains very rabidly at a rate 3-3.5 % per minute .... Either on wifi or not ... It's normal rate used to be 5 % per minute till the day iinstalled that game and the problem persists even after i removed it
As for the explanation in the thread ptovided it does not make sense to me .. Because every time the battery jumps up the battery drain becomes soooooo rapid afterwards
offdrment son,
opiujn said:
In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
In battery settings there's nothing other than usual at all
I will try safe mood and see what i get ... But should i work with it till the battery ends or i can use it for a couple of hours and notice the batt. Drain rate ?
hahuhe said:
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?
Click to expand...
Click to collapse
I was trying to find a way to root my phone but i can't find any data on the web ! For some reason that way of rooting tgat was on xda deleted ...
But I have a question ... I always wait rill my phone completely empty and charge it till completely full ... I leave it in the plug about an hour till the complete sign shows in notification bar
Does this mean that way that my battery is already calibrated and i shouldn't try to bother to root the phone and get the app ?
someone26 said:
I was trying to find a way to root my phone but i can't find any data on the web ! For some reason that way of rooting tgat was on xda deleted ...
But I have a question ... I always wait rill my phone completely empty and charge it till completely full ... I leave it in the plug about an hour till the complete sign shows in notification bar
Does this mean that way that my battery is already calibrated and i shouldn't try to bother to root the phone and get the app ?
Click to expand...
Click to collapse
There's Dr ketans thread on rooting in the stickies of development section, it's very simple.
After 1 or two full charge cycles, the battery will recalibrate itself, no need for any app, they don't do anything anyway.
Sent from my GT-N7000 using xda app-developers app
opiujn said:
In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
I tried safe mode .. And yeah performance is a little better though still not like before .. it bought me an extra minute per 1% drain .. So i dunt know what that says ? I checked running processes the only difference that facebook and avast antivirus dunt run in safe mode .. Which were probably always there since i got the phone nothing new..
Hello everyone, need some advice. I am unable to know if my battery is functioning normal or should i get it replaced. Please see the atached picture. You will see that my battery draining off within 4hrs with 2G data on. It has been happening from past 2 weeks. Just want to know if it is normal on 2G. Or should i get my battery replaced with a new one. I have read somewhere that with 2G battery of Galaxy Note lasts for about 6 to 7 hrs. Mine goes for just 4 hrs max.
Few details about my usage:
1. Data sync is not on all the time. But for every half an hour i keep data sync on for 30 for 40 seconds max to retrive mails.
2. I dont not watch any videos, online or on mobile.
3. I dont play games at all though i have around 20 games bcoz of this poor battery life.
4. I do not do video calling.
5. With the above usage and little bit of online videos using wifi, I get around 3 to 4 hrs of battery life.
P. M. Vinay Kumar,
HTC P3400i (sold),
Samsung Galaxy S, rooted(sold),
Samsung Galaxy Note (using now),
Stock ICS, Rooted
By the time i posted my prob on XDA, battery dropped from 32% to 18% !!!
P. M. Vinay Kumar,
HTC P3400i (sold),
Samsung Galaxy S, rooted(sold),
Samsung Galaxy Note (using now),
Stock ICS, Rooted

Battery 15% to Phone dead in 2 sec...

hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA
aami.aami said:
hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA
Click to expand...
Click to collapse
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.
I also have the same problem, it also seems to happen at 30 percent. I'm pretty sure we need to change our battery
Sent from my SM-N910F using Tapatalk
Toss3 said:
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.
Click to expand...
Click to collapse
u mean to say that i should go stock samsung firmware and remove this rom?
aami.aami said:
u mean to say that i should go stock samsung firmware and remove this rom?
Click to expand...
Click to collapse
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.
Toss3 said:
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.
Click to expand...
Click to collapse
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?
had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!
aami.aami said:
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?
Click to expand...
Click to collapse
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.
TML1504 said:
had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!
Click to expand...
Click to collapse
Toss3 said:
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.
Click to expand...
Click to collapse
ok thank you guys, i guess i just have a ****ty life and very very ****ty luck happens to every phone tablet i buy. FML
There are 3 possible reasons this happens - broken phone, broken battery or software problem.
I think the first one is unlikely so you need to figure out which of the last 2 is.
Make a back up of your current rom and install an official TW software. If this still doesnt fix your problem, its most likely the battery. A new genuine battery is around 20$.
PS - i think that the battery stats bin file is automatically deleted once you fully charge the battery anyway but you can still try it altough i doubt it will fix it.
Sent from my SM-N910F using XDA Free mobile app
same problem here
And here.
This is typical of a dead battery. Your best bet is to buy a new one.
Less than a year is short but not unheard of. Overheating (especially when 100% full), deep discharge, very intensive use (especially with quick charging) and manufacturing defects all can kill a battery.
I'm on CM12.1 with this problem. I've tried battery calibration and tried a new battery but its still apparent.
Will be trying a factory reset as my last resort.
This is happening to 2 phones in my household it started after the upgrade to 5.0.1 one note is Tmobile the other sprint....highly doubt we both developed battery problems RIGHT after we both ota upgraded.
Same here at ~13%.
I do always either fast charge or QI charge.
So far I've tried:
- Battery calibration
- Bought new battery
- Factory reset
Still happens!!
Maybe I'll try TW flash or modem change
Weird, I have this exact same problem as the original post. I'm running BOC5 on the 9105. It's a sporadic problem only occurring on occasion
Sent from my SM-N910F using XDA Free mobile app
KK > LP
VuBoo said:
KK > LP
Click to expand...
Click to collapse
I've been running Lollipop for ages until this problem happened. Frankly, I still prefer Lollipop with this problem.

Battery problem

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...
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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
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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?
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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

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