MIUI 11-12 Battery Drain Problem (MIUI 10.3.3.0 Downgrade Solves) What's the best ROM for extended battery life?

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DryreL

Senior Member
Jul 26, 2018
52
4
gokdenizcetin.com
Hi, I was looking for best lightweight ROM for my Mi 9T Pro Global device. Currently I'm on MIUI 12.5.2 and battery life is really bad. I'm getting 7 hours SoT. Sytem UI and Others suck the battery out.

(Some screenshots are in Turkish language because that's my native language and I forgot to change language when I took screenshot. But you can still understand the values I think. Sorry.)

MIUI 11-12 Versions (same result):
1634299162108.png
1634299232271.png
View attachment 5433781

1634299271425.png
1634299603298.png
1634299722272.png


But I am sure this device was getting 12-15 hours daily usage in 2019 with MIUI 10.0.3 (Android 9). To prove this, I formatted data from OrangeFox Recovery and installed V10.3.3.0.PFKMIXM. And my battery life became awesome as it is before! Here's the battery status. The device looks like in the first day.

1634299860921.png
1634299889079.png
1634299961117.png
1634299981560.png
1634300009918.png


Android system uses %10,5!!! It was +%35 when I was using MIUI 11-12. I only charged the phone 1 time in a day. It was 3 times a day when I use MIUI 11 and 12.

If you guys want your old long battery performance, just downgrade your ROM to MIUI 10.3.3.0.
It was fine but there was two problem for me. First one, Android 12 came out and I don't want to stay outdated. Second one, I loved the new MIUI 11-12 interface, animations and overall feel. The downgrading version is not feel right for just battery...

So, my question, is there any lightweight & (really) stable Android 11 or 12 version ROM for Mi 9T Pro? Battery life is really important for me, please specify the SoT value when you recommend a ROM. I think our phone has great hardware but thanks to MIUI(!) it's lacking the performance.

Thanks in advance!
 
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Ezio553

Senior Member
Jul 1, 2018
123
25
...
Oppo Realme 1
Redmi K20 Pro
Hi, I was looking for best lightweight ROM for my Mi 9T Pro Global device. Currently I'm on MIUI 12.5.2 and battery life is really bad. I'm getting 7 hours SoT. Sytem UI and Others suck the battery out.

(Some screenshots are in Turkish language because that's my native language and I forgot to change language when I took screenshot. But you can still understand the values I think. Sorry.)

MIUI 11-12 Versions (same result):
View attachment 5433783 View attachment 5433785View attachment 5433781

View attachment 5433787View attachment 5433789View attachment 5433791

But I am sure this device was getting 12-15 hours daily usage in 2019 with MIUI 10.0.3 (Android 9). To prove this, I formatted data from OrangeFox Recovery and installed V10.3.3.0.PFKMIXM. And my battery life became awesome as it is before! Here's the battery status. The device looks like in the first day.

View attachment 5433793View attachment 5433795View attachment 5433797View attachment 5433799View attachment 5433801

Android system uses %10,5!!! It was +%35 when I was using MIUI 11-12. I only charged the phone 1 time in a day. It was 3 times a day when I use MIUI 11 and 12.

If you guys want your old long battery performance, just downgrade your ROM to MIUI 10.3.3.0.
It was fine but there was two problem for me. First one, Android 12 came out and I don't want to stay outdated. Second one, I loved the new MIUI 11-12 interface, animations and overall feel. The downgrading version is not feel right for just battery...

So, my question, is there any lightweight & (really) stable Android 11 or 12 version ROM for Mi 9T Pro? Battery life is really important for me, please specify the SoT value when you recommend a ROM. I think our phone has great hardware but thanks to MIUI(!) it's lacking the performance.

Thanks in advance!
Why don't you try some custom roms you will get good enough battery life and performance as well
 

chaoscreater

Senior Member
Why don't you try some custom roms you will get good enough battery life and performance as well

Because that's not what his question is.

Not all custom ROMs are great. Not all kernels are good. In fact, I tested like 3 custom ROMs over the past week on my old Poco F1 and 2 of the ROMs sucked (in terms of battery life). Why waste a week of testing, when you can get stats and recommendations from others first?

Some people have jobs and families to support and other things to do. Ain't nobody got time to spend 2~3 days testing custom ROMs to make comparisons. It takes time to get a ROM installed, install apps (doesn't matter if you use Titanium Backup or not), all of these processes take time. Not to mention that you might find unknown bugs in certain ROMs.


Anyway, I too would like to know this. I bought my K20 Pro (China version) when it first came out. Updated it to MIUI 12 and battery life went to ****. Downgraded back to MIUI Android 9 and it's fine. But these days, I'm getting about 1% drain every 3~4 minutes. I used to get 1% drain every 8~9 minutes. I feel like it's time to install a custom ROM now.

I've looked at Pixel Experience (which is what I'm currently using on my Poco F1) and there are some bugs that others have reported, as well as a lot of reports of bad battery life. I can't find any ROMs that seem to focus on battery life.

Only ROM that I found that seems to have an unanimous opinion of good battery life is HavocOS, but it hasn't been updated since January 2021.



In fact, I found plenty of ROMs that have been abandoned or haven't been updated for some time. Most are not even from senior developers. I'm not looking to waste time installing ROMs that don't actually have an actual developer behind it.
 
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Ezio553

Senior Member
Jul 1, 2018
123
25
...
Oppo Realme 1
Redmi K20 Pro
Because that's not what his question is.

Not all custom ROMs are great. Not all kernels are good. In fact, I tested like 3 custom ROMs over the past week on my old Poco F1 and 2 of the ROMs sucked (in terms of battery life). Why waste a week of testing, when you can get stats and recommendations from others first?

Some people have jobs and families to support and other things to do. Ain't nobody got time to spend 2~3 days testing custom ROMs to make comparisons. It takes time to get a ROM installed, install apps (doesn't matter if you use Titanium Backup or not), all of these processes take time. Not to mention that you might find unknown bugs in certain ROMs.


Anyway, I too would like to know this. I bought my K20 Pro (China version) when it first came out. Updated it to MIUI 12 and battery life went to ****. Downgraded back to MIUI Android 9 and it's fine. But these days, I'm getting about 1% drain every 3~4 minutes. I used to get 1% drain every 8~9 minutes. I feel like it's time to install a custom ROM now.

I've looked at Pixel Experience (which is what I'm currently using on my Poco F1) and there are some bugs that others have reported, as well as a lot of reports of bad battery life. I can't find any ROMs that seem to focus on battery life.

Only ROM that I found that seems to have an unanimous opinion of good battery life is HavocOS, but it hasn't been updated since January 2021.



In fact, I found plenty of ROMs that have been abandoned or haven't been updated for some time. Most are not even from senior developers. I'm not looking to waste time installing ROMs that don't actually have an actual developer behind it.
u need to check telegram updates channel to know which rom is updated or not everyone updates on xda.
Havoc for redmi k20 pro already got each version upgrade currently on 4.10 if u check telegram channels u will know.
 

chaoscreater

Senior Member
u need to check telegram updates channel to know which rom is updated or not everyone updates on xda.
Havoc for redmi k20 pro already got each version upgrade currently on 4.10 if u check telegram channels u will know.

So why use XDA then.

Also, isn't HavocOS 4.10 the same as the link I posted previously? Or is the one I posted previously 4.01?

And your answer is still not relevant to the question that was asked in OP. You can give suggestions for 10 different custom ROMs and not all of them are good. Nobody has time to go through each of them and test one by one. And nobody has time to check Telegram and other apps or platforms. I've got Discord, Whatsapp, Line, Facebook, Twitter and it's enough as it is.
 

Ezio553

Senior Member
Jul 1, 2018
123
25
...
Oppo Realme 1
Redmi K20 Pro
So why use XDA then.

Also, isn't HavocOS 4.10 the same as the link I posted previously? Or is the one I posted previously 4.01?

And your answer is still not relevant to the question that was asked in OP. You can give suggestions for 10 different custom ROMs and not all of them are good. Nobody has time to go through each of them and test one by one. And nobody has time to check Telegram and other apps or platforms. I've got Discord, Whatsapp, Line, Facebook, Twitter and it's enough as it is.
well then nobody can help you bcoz unless u try something u won't know about it just stick to stock rom maybe downgrade to older version if u feel that performs better bcoz none of us can do anything about miui update and the way it is bogging the whole phone down.Currently any custom rom that uses A11 firmware is not that good in battery life thanks to xiaomi's broken firmware.
 

chaoscreater

Senior Member
well then nobody can help you bcoz unless u try something u won't know about it just stick to stock rom maybe downgrade to older version if u feel that performs better bcoz none of us can do anything about miui update and the way it is bogging the whole phone down.Currently any custom rom that uses A11 firmware is not that good in battery life thanks to xiaomi's broken firmware.

Not true. I have multiple Xiaomi devices between me and my wife. We have:

Poco F1 (was on stock MIUI 12 and battery life sucked. Switched to Pixel Experience Android 11 and battery life improved by a lot. I'm talking about 8~9% idle battery drain per 10hrs, down to 0~1% idle battery drain per 10hrs).

Xiaomi Mipad 4 - stock ROM was fine, now on Android 11 custom ROM (can't remember the name of it) and it's about 3% idle battery drain per 10hrs.

Redmi Note 9T 5G - stock MIUI 12.5 rom. I get about 1% idle battery drain per 10 hrs and about 1% battery drain per 10 minutes of SOT. Best record I got was 4.5hrs of SOT with only 15% of battery drain, which is amazing. Again, stock MIUI 12.5 Android 11 ROM.

Poco X3 NFC - almost same as above, except it's about 1% of battery drain per 6~7 minutes of SOT. Stock A11 MIUI 12 ROM as well.



All you had to do was share the SOT for the custom ROMs and make some recommendations. Instead, you come and tell people to check Telegram (this is XDA mate) and give answers that don't really help anyone. You do realize there's like 10+ different custom ROMs and not everyone has the time to waste to try out every one of them? I did that before when I was young and had free time. I ain't got the time for that now.

Again, a simple answer of "I used XYZ ROM with XYZ kernel and average SOT is X hours" would have been enough.
 

Ezio553

Senior Member
Jul 1, 2018
123
25
...
Oppo Realme 1
Redmi K20 Pro
Not true. I have multiple Xiaomi devices between me and my wife. We have:

Poco F1 (was on stock MIUI 12 and battery life sucked. Switched to Pixel Experience Android 11 and battery life improved by a lot. I'm talking about 8~9% idle battery drain per 10hrs, down to 0~1% idle battery drain per 10hrs).

Xiaomi Mipad 4 - stock ROM was fine, now on Android 11 custom ROM (can't remember the name of it) and it's about 3% idle battery drain per 10hrs.

Redmi Note 9T 5G - stock MIUI 12.5 rom. I get about 1% idle battery drain per 10 hrs and about 1% battery drain per 10 minutes of SOT. Best record I got was 4.5hrs of SOT with only 15% of battery drain, which is amazing. Again, stock MIUI 12.5 Android 11 ROM.

Poco X3 NFC - almost same as above, except it's about 1% of battery drain per 6~7 minutes of SOT. Stock A11 MIUI 12 ROM as well.



All you had to do was share the SOT for the custom ROMs and make some recommendations. Instead, you come and tell people to check Telegram (this is XDA mate) and give answers that don't really help anyone. You do realize there's like 10+ different custom ROMs and not everyone has the time to waste to try out every one of them? I did that before when I was young and had free time. I ain't got the time for that now.

Again, a simple answer of "I used XYZ ROM with XYZ kernel and average SOT is X hours" would have been enough.
In that case all roms give atleast 6-6.30 sot values easily except a11 firmware based roms. All aosp roms are lightweight comapred to miui.
 

DryreL

Senior Member
Jul 26, 2018
52
4
gokdenizcetin.com
Hi everyone,

The problem with my phone was battery drain problem caused by Android's battery optimization feature, I found the problem, thanks to Tom...
Read this article: [MIUI with Tom #8] FIX battery Drain in MIUI - after OTA or after reset to factory settings!

Before:
1635850058127.png


After:

1635850231022.png


Here's the magic:
adb devices
adb shell "cmd package bg-dexopt-job"


a) Turn off autostart for all apps
b) Lower the background process limit from "Standard" to 3 in developer settings.
c) Turn off background work of cloud apps.
d) Delete bloatware applications (I'll explain in the next section).
e) Discharge your phone completely once, the device will turn off. Charge it to 100% without ever turning it on and turn on your device. This is called battery calibration.
f) Battery > App battery saver, restrict the background activities of the apps you rarely use.
g) Battery > Settings icon > Battery saver > scroll down to the bottom and turn on "Schedule time to switch between modes". Set your own time. It will automatically turn battery saver on and off.
h) Battery > Scheduled on/off > here set the on/off times according to your nighttime sleep and morning wake-up time. Your device will turn off when you sleep and turn on when you wake up.
i) Turn off the Always On Screen feature.
 

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    Why don't you try some custom roms you will get good enough battery life and performance as well

    Because that's not what his question is.

    Not all custom ROMs are great. Not all kernels are good. In fact, I tested like 3 custom ROMs over the past week on my old Poco F1 and 2 of the ROMs sucked (in terms of battery life). Why waste a week of testing, when you can get stats and recommendations from others first?

    Some people have jobs and families to support and other things to do. Ain't nobody got time to spend 2~3 days testing custom ROMs to make comparisons. It takes time to get a ROM installed, install apps (doesn't matter if you use Titanium Backup or not), all of these processes take time. Not to mention that you might find unknown bugs in certain ROMs.


    Anyway, I too would like to know this. I bought my K20 Pro (China version) when it first came out. Updated it to MIUI 12 and battery life went to ****. Downgraded back to MIUI Android 9 and it's fine. But these days, I'm getting about 1% drain every 3~4 minutes. I used to get 1% drain every 8~9 minutes. I feel like it's time to install a custom ROM now.

    I've looked at Pixel Experience (which is what I'm currently using on my Poco F1) and there are some bugs that others have reported, as well as a lot of reports of bad battery life. I can't find any ROMs that seem to focus on battery life.

    Only ROM that I found that seems to have an unanimous opinion of good battery life is HavocOS, but it hasn't been updated since January 2021.



    In fact, I found plenty of ROMs that have been abandoned or haven't been updated for some time. Most are not even from senior developers. I'm not looking to waste time installing ROMs that don't actually have an actual developer behind it.
    1
    Hi, I was looking for best lightweight ROM for my Mi 9T Pro Global device. Currently I'm on MIUI 12.5.2 and battery life is really bad. I'm getting 7 hours SoT. Sytem UI and Others suck the battery out.

    (Some screenshots are in Turkish language because that's my native language and I forgot to change language when I took screenshot. But you can still understand the values I think. Sorry.)

    MIUI 11-12 Versions (same result):
    1634299162108.png
    1634299232271.png
    View attachment 5433781

    1634299271425.png
    1634299603298.png
    1634299722272.png


    But I am sure this device was getting 12-15 hours daily usage in 2019 with MIUI 10.0.3 (Android 9). To prove this, I formatted data from OrangeFox Recovery and installed V10.3.3.0.PFKMIXM. And my battery life became awesome as it is before! Here's the battery status. The device looks like in the first day.

    1634299860921.png
    1634299889079.png
    1634299961117.png
    1634299981560.png
    1634300009918.png


    Android system uses %10,5!!! It was +%35 when I was using MIUI 11-12. I only charged the phone 1 time in a day. It was 3 times a day when I use MIUI 11 and 12.

    If you guys want your old long battery performance, just downgrade your ROM to MIUI 10.3.3.0.
    It was fine but there was two problem for me. First one, Android 12 came out and I don't want to stay outdated. Second one, I loved the new MIUI 11-12 interface, animations and overall feel. The downgrading version is not feel right for just battery...

    So, my question, is there any lightweight & (really) stable Android 11 or 12 version ROM for Mi 9T Pro? Battery life is really important for me, please specify the SoT value when you recommend a ROM. I think our phone has great hardware but thanks to MIUI(!) it's lacking the performance.

    Thanks in advance!