{Q} How to calibrate battery - Xiaomi Mi 9 Questions & Answers

I have successfully changed the mi 9 battery with mi9t it is shorter in size But works great
How to calibrate the battery to get the correct capacity as it shutdown when it reaches 32%
I remember that TWRP has that option in the past
Running CRDROID 6.9 WITH Quantic kernel

use your phone until fully zero % then try to start if it still got any power left. Then recharge it to 100% from 0%

M.WeWe said:
I have successfully changed the mi 9 battery with mi9t it is shorter in size But works great
How to calibrate the battery to get the correct capacity as it shutdown when it reaches 32%
I remember that TWRP has that option in the past
Running CRDROID 6.9 WITH Quantic kernel
Click to expand...
Click to collapse
well, i dont know if is my misleading or not but, you are saying that you put a mi9t battery inside a mi9 right? it really fit??
i think even if they are different capacity, they wont make difference, the phone is calibrated to detect 3300mah only, so, even if you put a 5000 battery, the phone will only use 3300mah and shutdown when that is gone.
cause there's a file inside system folder with that "specific mention" and of course phone will do, what that file say to do. (if you are rooted you can check it, but i dont remember the name file or specific directory).
you can try only calibrate the battery like the user above saying: let the phone go to 0% or die by itself, then wait 10 minuts, power it on again and again until the dont show sign (even dont show nothing at all), then put it to the charger until reach 100% (dont turn it on until they reach the full). then turn it on and use it, see if they go dead at 32% anyway (i almost sure they will anyway).
only rom development guy's with experience with MIUI can tell you how to change the file who tell the battery capacity and how make it work like it do, maybe pull the file from mi9t and put it on mi9 will do the trick...idk.

sun_is_shinning said:
well, i dont know if is my misleading or not but, you are saying that you put a mi9t battery inside a mi9 right? it really fit??
i think even if they are different capacity, they wont make difference, the phone is calibrated to detect 3300mah only, so, even if you put a 5000 battery, the phone will only use 3300mah and shutdown when that is gone.
cause there's a file inside system folder with that "specific mention" and of course phone will do, what that file say to do. (if you are rooted you can check it, but i dont remember the name file or specific directory).
you can try only calibrate the battery like the user above saying: let the phone go to 0% or die by itself, then wait 10 minuts, power it on again and again until the dont show sign (even dont show nothing at all), then put it to the charger until reach 100% (dont turn it on until they reach the full). then turn it on and use it, see if they go dead at 32% anyway (i almost sure they will anyway).
only rom development guy's with experience with MIUI can tell you how to change the file who tell the battery capacity and how make it work like it do, maybe pull the file from mi9t and put it on mi9 will do the trick...idk.
Click to expand...
Click to collapse
The connector on Mi9T's battery is different, and the battery is thicker, the back cover won't fit ! Also you have to tear off the old cell from its control board and solder the new cell on, essentially you are putting the new cell with old protective board and connector. But yeah, there is no reason why the battery wouldn't work if there is same voltage.

M.WeWe said:
I have successfully changed the mi 9 battery with mi9t it is shorter in size But works great
How to calibrate the battery to get the correct capacity as it shutdown when it reaches 32%
I remember that TWRP has that option in the past
Running CRDROID 6.9 WITH Quantic kernel
Click to expand...
Click to collapse
how is it possible if the battery of the mi9t has the plug on the left and that of the normal mi9 is on the right ?? how did you do it thanks

As I said in the comment right above yours, you have to solder the connector with the protective board from the old cell to the new one, then you can make it barely fit. Not really suitable for amateurs.

Related

Batterystat.bin pushed manually/uploaded?

Hi guys,
Since i recalibrated my Samsung galaxy s Battery it seems like the battery is dropping even faster then it used to.
Just wondering if it would be possible to Push this batterystats.bin file manually into adb push ( File ) /data/system and the restart the phone..
If yes, could someone please upload there batterystat.bin, only people with a healthy battery life please, my phone at the moment can barely survive 8 hours with minimal use....
Thnx guys
Hope it works / is possible
Battery stat is only a logfile. Search for a process that is draining your battery or reinstall your rom again.
Sent from my GT-I9000 using XDA App
JUST TRY TO REPLACE THE MODEM
I TRIED THIS ONE xxjpm.modem
AND ITS WORK FINE
REPLACE IT AND CHARGE YOUR PHONE AS USUAL THEN YOU WILL SEE
DOWNLOAD FROM HERE
http://forum.xda-developers.com/showpost.php?p=9134289&postcount=1
styla12 said:
Hi guys,
Since i recalibrated my Samsung galaxy s Battery it seems like the battery is dropping even faster then it used to.
Just wondering if it would be possible to Push this batterystats.bin file manually into adb push ( File ) /data/system and the restart the phone..
If yes, could someone please upload there batterystat.bin, only people with a healthy battery life please, my phone at the moment can barely survive 8 hours with minimal use....
Thnx guys
Hope it works / is possible
Click to expand...
Click to collapse
I think somethig is keeping ur phone from sleeping. Check ur battery history and see if there is a big entry in "particial wake lock"
Sent from my GT-I9000 using Tapatalk
Recalb did not help
In terms of firmwares/kernels tried several same issue.
And in regards to statistics it always seems to be my display which is at like 80% ....
SO i thought that if the batterystat log is replaced with another whereby the recalb is better it'll function longer. From what it looks like altho the battery physcially has battery whenever the reader reaches 0 it turns off, and charging only seems to take 30min to get it back to full????
Can't be normal can it?
yousephahmed said:
JUST TRY TO REPLACE THE MODEM
I TRIED THIS ONE xxjpm.modem
AND ITS WORK FINE
REPLACE IT AND CHARGE YOUR PHONE AS USUAL THEN YOU WILL SEE
DOWNLOAD FROM HERE
http://forum.xda-developers.com/showpost.php?p=9134289&postcount=1
Click to expand...
Click to collapse
Kill the caps plz attentionwhore
So any chance of an upload / or any other recommendations?
yousephahmed said:
JUST TRY TO REPLACE THE MODEM
I TRIED THIS ONE xxjpm.modem
AND ITS WORK FINE
REPLACE IT AND CHARGE YOUR PHONE AS USUAL THEN YOU WILL SEE
DOWNLOAD FROM HERE
http://forum.xda-developers.com/showpost.php?p=9134289&postcount=1
Click to expand...
Click to collapse
What exactly was your experience with the xxjpm.modem? What is the difference to another one?
Sent from my GT-I9000 using Tapatalk
Got the file, going to give it a go and leave feedback here.
If anyone else wants to try i have attached it
People still confuse batterystats for something else, this only keeps the HISTORY of your battery usage and will not dictate the %, if you want to calibrate your battery find a way to empty it and charge the phone will its OFF, then remove the charger and power ON the phone.
Well that might be the case, but strangely enough today i have had the phone on for 13 hours and still got 22 percent battery left, which before was not the case. So seems to have made a difference for me.
If anyone else wants to try and get back with there results that's fine.
Kind regards
Styla

Battery Calibration

Having seen so many posts on calibration of battery, i have decided to make this thread so to make it easier and useful for you guys. This thread can also be used to share your experiences with calibration and usage of milestone's battery.
Note: This is done using a the motorola milestone 1. So if you're using any other phone, pls ask abt them in this thread b4 you do anything!!!!
Intro:
The calibration of the battery is needed when you want to switch/install roms. This will make sure that the battery is really fully charged, thus preventing the battery life from dropping too drastically in a matter of hours.
I know there are some other methods to help calibrate your battery, but this is the only one I am sure of the steps. Please inform me of the other methods so to share with everybody.
Steps:
1. Before flashing a new rom, use root explorer (with read/write set) to delete the file "batterystats.bin" stored in /data/system/.
2. Charge your phone with it being turned off.
3. After it is fully charged(100%), take out its battery without plugging off the power supply.
4. Wait for a few moments, and a ? sign will appear.
5. Put your battery back in. You should see that the battery percentage increases quickly to 60%. If it increases to 100% with seconds, please skip to step 6.
6. If it stops increasing at 60%, let the phone continue to charge until 100%(takes quite a while)
7. Once it reaches 100%, let it charge for a further 15-20 minutes.
8. Once that's done, you can boot to OpenRecovery and flash your rom!!!
Alternative way of calibration(thanks a lot zeppelinrox!!!):
http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10
This method allows you to calibrate the battery and use ur phone at the same time!!!
I hope this helps you people, because it really helped me!!!!
Note: i m not responsible for anything bad that happens to ur phone. Perform the calibration at ur own risk!!!(though it should be perfectly fine, unless u do something wrong or extra)
Btw, i am just writing things that i assume to be correct, so if anything needs to be edited/added, pls inform me through this thread or sending me a pm.
Credits to everyone (especially pcphobic for his post in http://forum.xda-developers.com/showpost.php?p=11604143&postcount=740) who have written all these in your posts that made it possible for me to gather and get all this info!!!!!!
You should give credits to whom you copied this from.
oh yea i almost forgot.Thx fellow citizen!!!!
And it's good to remove/wipe the battery status data with the charger plug-in as the last step.
thx bnwg, but i don't get you. Mind if you make yourself clearer? Thx!!!!
nickrule1896 said:
thx bnwg, but i don't get you. Mind if you make yourself clearer? Thx!!!!
Click to expand...
Click to collapse
He's referring to deleting the batterystats.bin file from the /data/system folder.
Yup, got it thx!!!!
mount -a
rm /data/system/batterystats.bin
For this set of instructions, can the console in the OR be used to perform it?
mods should make this thread a stickie.
Calibrating Without Downtime!
Edit: If this doesn't work on your device, try the Die-Hard Battery Calibrator Script to ensure a proper charge
This is proven to work with Motorola Milestone so I would imagine the Droid as well.
It works with the Milestone 2 but you may need to get the phone booted up manually (step 7) instead of the easy reboot in step 6.
If you have a different phone and this works, please let us know!
You probably won't believe that this will work but try it anyway.
The big benefit of doing it this way:
It's great if you don't plan on changing roms and just want to calibrate your battery without downtime so that you can just use your phone as you normally would.
Note: Be sure that the phone isn't running hot (feel the back)
1. While in Android, charge up to 100% and leave the phone plugged in.
2. Delete /data/system/batterystats.bin
3. Remove back cover
4. Press Power and choose to reboot normally.
5. When the screen goes black and the lights go out, pull out the battery before you get the M logo. It will probably still work after the M logo shows up but that's how I do it.
6. Surprise: The phone will boot up without the battery! - Mine does - every time
Note: Batterystats.bin is recreated when you see the M logo - even though the battery isn't in the phone.
Go to Step 8 if the phone booted up as described.
7. If it doesn't boot up and you see the battery with the ?
..........a) Put the battery back in (you will see 60%),
..........b) Power off the phone (press power until LED light goes out)
..........c) Power on the phone (press power until you see the M logo)
..........d) Remove battery... and watch bootanimation...
8. a) After the surprise of seeing the boot animation without a battery, you will then see the lock screen along with a "No SIM card error" and no signal.
...... Put the battery back in - the SIM card error will disappear, you will get a signal, it will show 60% full and the icon will show the battery charging.
...... Go to Step 9 if this works as planned. If it doesn't, reboot (again without the battery) and use step 8b instead of step 8a.
... b) Put the battery back in during the bootanimation, but after the haptic feedback/vibration (and the buttons along the bottom light up).
....... On a normal reboot, you can actually slide and unlock the phone when you get the vibration during the boot animation. You knew that, right?
9. Use your phone normally while you calibrate the battery
10. Let it fill it up to 100% + 15 minutes or so. When it is truly finished charging, the battery should be cool.
11. If the phone is running hot, weird things can happen. For example, you may get no signal when you put the battery back in or the battery doesn't begin charging (the status bar battery icon doesn't change). Just let the phone cool off and it should work next time.
100% full is approximately 4200mV
As you can see in the cap below, it's showing only 60% at 4241mV (This was after booting up without the battery and putting the battery in)
A few minutes later, still plugged in, it showed 100% at 4225mV and then it went up to 4230mV.
Finally, I then unplugged the phone and I got a reading of 4196mV
Notes:
Now, when I charge it up, it will go up to 4230mV everytime. I leave it plugged in an extra few minutes after that.
I highly recommend Battery Monitor Widget
Batterystats.bin gets recreated if you unplug your phone and plug it in again. So don't do that. Let it get recreated on the M logo (Step 6).
Thanks to pcphobic for a couple of important tips and to pcphobic and sileshn both for confirming that my phone isn't possessed!
Azhad (one of the two Androidiani OR developers) said another way to wipe battery
http://forum.xda-developers.com/showpost.php?p=11715432&postcount=967
now i don't know what's the right one? delete batterystats.bin or battd folder's contents? with full or empty battery?
nickrule1896 said:
Credits to everyone who have written all these in your posts that made it possible for me to gather and get all this info!!!!!!
Click to expand...
Click to collapse
It would have been nice if you mentioned my name or put a source link to my posting dated 24th February 2011 at
http://forum.xda-developers.com/showpost.php?p=11604143&postcount=740
etoy said:
Azhad (one of the two Androidiani OR developers) said another way to wipe battery
http://forum.xda-developers.com/showpost.php?p=11715432&postcount=967
now i don't know what's the right one? delete batterystats.bin or battd folder's contents? with full or empty battery?
Click to expand...
Click to collapse
Recently I follow Azhad's way to wipe the battery.
When I delete the file (ie. cc_data) under that folder and go back in it, the file will be regenerated. And the batterystats.bin is updated according to the timestamp of the newly generated cc-data file. I don't know if this is the same as the step 6 from zeppelinrox's method.
etoy said:
Azhad (one of the two Androidiani OR developers) said another way to wipe battery
http://forum.xda-developers.com/showpost.php?p=11715432&postcount=967
now i don't know what's the right one? delete batterystats.bin or battd folder's contents? with full or empty battery?
Click to expand...
Click to collapse
Maybe that's the method for CM7? I don't know because I'm a die hard CM6er lol
He also mentions a file (/data/system/batterystats.bis) that I've never seen mentioned before.
bnwg said:
Recently I follow Azhad's way to wipe the battery.
When I delete the file (ie. cc_data) under that folder and go back in it, the file will be regenerated. And the batterystats.bin is updated according to the timestamp of the newly generated cc-data file. I don't know if this is the same as the step 6 from zeppelinrox's method.
Click to expand...
Click to collapse
I have that cc_data file too but it's blank when I open it with a text editor.
im just linking my post here: http://forum.xda-developers.com/showpost.php?p=11603675&postcount=736
the myth about the batterysoftware needs some real facts. payce from german forum did some measuring with real astonishing results.
I have seen that article before.. thanks to you of course
I'll quote the conclusion of the first post:
That is, the stone over-estimated the voltage at the battery is full by ~ 60 mV and underestimated the power of up to 100 mV with an empty battery. The intent is well-battery protection (which is good too). It is pretended that 3.0 and 4.2 volts to discharge until it is loaded. In reality, there are more 3.1 volts and 4.15 volts (which by the way of battery manufacturers also better unanimous opinion!).
Click to expand...
Click to collapse
So the reading I get via Battery Monitor Widget aren't that far off and perhaps exactly where they're supposed to be.
After fully charging (showing 4230mV while plugged in) and then uplugging the phone, it will ideally show between 4150mV and 4200mV vs the 4.15 volts (ie. 4150mV) quoted above.
My phone will power itself off between 3150mV and 3200mV vs the 3.1 volts (3100mV) quoted above. Actually, I just checked BMW's log and today it powered itself off at 3162mV after 19.5 hrs.
I found it interesting that you use less power while downloading overclocked versus downloading at stock speed lol.
ABC: Android Battery Calibration - Video Guide
youtube.com/watch?v=fwrZu0DKp2c[/url]
@zeppelinrox: wouldnt ur steps be the same as doing the calibration my way, just that instead of booting to OR for flashing new rom, we just reboot normally?
@pcphobic: sry cos it would be hard for me to go around checking who posted this kind of info before. well, since u said it, i will definitely do it
nickrule1896 said:
@zeppelinrox: wouldnt ur steps be the same as doing the calibration my way, just that instead of booting to OR for flashing new rom, we just reboot normally?
Click to expand...
Click to collapse
Of course it would calibrate either way.
The difference is that I found a way to do it more conveniently.
You can do it anytime, use your phone normally and actually monitor the voltage as well.
Sent from my Milestone using Tapatalk
zeppelinrox said:
Of course it would calibrate either way.
The difference is that I found a way to do it more conveniently.
You can do it anytime, use your phone normally and actually monitor the voltage as well.
Sent from my Milestone using Tapatalk
Click to expand...
Click to collapse
I am using MS2 and there isn't an option of "reboot" when pressing the power button. Can this be done by using the "quick boot" app? thanks
https://market.android.com/details?id=com.siriusapplications.quickboot&feature=search_result

[Q] Need help with my battery STATISTICS

sirs, I recently flashed stocklite 7, and calibrated battery using the android battery calibration app (not with cwm rec).
Now, the battery shows empty and the phone turns off within like 25 hours, even with bare use ( won't last > 2 hrs with wifi / data on! ). I used to enjoy like 3 days w/o charging (with bare use - right).
When I plug it in to charge, THE IMAGE (charging while phone is off)SHOWS 75% OF THE BATTERY STILL FILLED, when I plug it in!!!
My doubt is, I believe there's some access problem or so, there is still 75 % battery left, and I need a way to access it. Is their any way to repair it?
THANK YOU.
I seriously don't understand why people ask questions in a thread and then make a COMPLETELY NEW thread for the same thing...
Insert witty sentence here

Battery Voltage lower than expected

The Battery life of my Galaxy S10 SM-G973U isn't really as good as I expected it to be. I bought it as a refurbished phone approximately 9 Months ago. When I fully charge the phone and then watch the battery voltage in for example Accubattery, it says 4.270V. However the charge voltage of the Battery is 4.35V. When I do the same on the Galaxy s7 the with the factory original battery, it says 4.35V. I once read that samsung does that in order to protect the battery when it gets older. But if that was the case, a battery replacement would be useless as the new battery would never get charged to 4.35V. Does everybody know if this is really the case and if there is a fix for this Limitation? Thanks in advance.
Fast_Lessy
I wouldn't worry about it. Monitor your SOT times. A heavily used (or abused) battery may need replaced every year. Just part of regular maintenance. When it gets to 80% of it original capacity replace it to prevent a failure.
Any swelling is a failure, replace immediately.
100% charges aren't desirable anyway...
Well my SOTs are around 3.5hours on a normal studying day and about 5h at the weekend with a lot of Youtube watching. They aren't bad but I see people with 5hours+ on normal usage and 8 hours with watching youtube. I just like to optimize and cant really reach the good SOTs.
Fast_Lessy said:
Well my SOTs are around 3.5hours on a normal studying day and about 5h at the weekend with a lot of Youtube watching. They aren't bad but I see people with 5hours+ on normal usage and 8 hours with watching youtube. I just like to optimize and cant really reach the good SOTs.
Click to expand...
Click to collapse
I'd expect better SOT if optimized. Constant high current drain is harder on the battery as well as inconvenient.
For starters ditch trash apps like all social media apps, none should be installed. They are security risks and battery hogs.
Use manual brightness control and stay under 50%.
It seems you are having the same problem I had when I replaced the battery on my Galaxy S10+. AccuBattery tells me I only have 75% battery left. So I bought a new battery, replaced it. And the capacity was exactly the same. The battery was only charged to 4.18V max.
This is my solution:
- Back up your device with Samsung's "Smart Switch" Windows app
- Root your phone with these tutorials:
- Install Ghost commander, enable root access in it
- Go to /efs/FactoryApp/ and copy the batt_discharge_level file to your storage
- Edit the file and put the number 100 there (that means 1 battery cycle, you can change it to a bigger number if you have older battery)
- Copy the file back to /efs/FactoryApp/ replacing original one
- Change the owner of this file back to "system" and the group "log"
- Dial code *#9900# and reset the battery information there
- Reboot the phone (it should now charge at 4.35V)
- Unroot device by flashing original AP file, relock bootloader, disable OEM unlock
- Restore data with Smart Switch
frogale said:
It seems you are having the same problem I had when I replaced the battery on my Galaxy S10+. AccuBattery tells me I only have 75% battery left. So I bought a new battery, replaced it. And the capacity was exactly the same. The battery was only charged to 4.18V max.
This is my solution:
- Back up your device with Samsung's "Smart Switch" Windows app
- Root your phone with these tutorials:
- Install Ghost commander, enable root access in it
- Go to /efs/FactoryApp/ and copy the batt_discharge_level file to your storage
- Edit the file and put the number 100 there (that means 1 battery cycle, you can change it to a bigger number if you have older battery)
- Copy the file back to /efs/FactoryApp/ replacing original one
- Change the owner of this file back to "system" and the group "log"
- Dial code *#9900# and reset the battery information there
- Reboot the phone (it should now charge at 4.35V)
- Unroot device by flashing original AP file, relock bootloader, disable OEM unlock
- Restore data with Smart Switch
Click to expand...
Click to collapse
Not worth all that trouble; under charging the battery will only increase its lifespan.
After replacement cycle 3 times from 100 to 20% to calibrate.
Never depend on SmartSwitch to backup critical data as it can fail you miserably. Always copy/paste critical files/folders instead.
Cycling from 100 to 20 will not help. Max charging voltage will be lower than 4.35V. Rooting is needed.
frogale said:
Cycling from 100 to 20 will not help. Max charging voltage will be lower than 4.35V. Rooting is needed.
Click to expand...
Click to collapse
I try a forced reboot, clear system cache and there may be other options in hidden settings ie abd edits.
Rooting is overkill unless you want to root it to begin with. Win-win if so...
Thanks for your answers. The Problem is I don't want to root my device or play around with the Firmware because it's my main device. I was hoping that there's a way to reset the cycles without the need to root or reset the device. If that's not the case, I won't change anything to be on the safe side.
But I apprechiate you guys for the help and answers.

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...
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

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