Themes / Apps / Mods [MOD/magisk/root] Set charging limit to 80/85/90/95% v2

[Sohip]

I just wanna report that this Magisk Mod (P6n_charginglimit_80.zip) is working perfectly fine on my rooted Pixel 7 Pro (Stock Kernel and Rom).

Last time I checked I got about ~5hrs20mins Screen time (Battery usage was from %80 to %10) and I'm also using an app called HEBF Optimizer that helped improve the battery life a little more.

CustomKernel might improve battery life even further but I haven't done that yet.

 

[liver20]

If i change value to 100 for stop and 94 for start.. Not works in pixel 7...
Why?

 

[BetaPix]

I just wanna report that this Magisk Mod (P6n_charginglimit_80.zip) is working perfectly fine on my rooted Pixel 7 Pro (Stock Kernel and Rom).

Last time I checked I got about ~5hrs20mins Screen time (Battery usage was from %80 to %10) and I'm also using an app called HEBF Optimizer that helped improve the battery life a little more.

CustomKernel might improve battery life even further but I haven't done that yet.

I can also confirm this works on my Pixel 7, so I didn't bother setting up ACC
Thank you for your work OP!

 

[73sydney]

fwiw i used to use acc and tried both front ends for it on my Pixel 2XL and it was always dropping in or out - often having to reset the charging switch etc - just niggly stuff, i like simple magisk modules over apps any day of the week....

have a few of my own here

 

[TerryS2K]

Hi, does anyone know if this will also work for the Pixel 7 pro?

 

[73sydney]

Hi, does anyone know if this will also work for the Pixel 7 pro?

its a magisk module and should be reversible (part of the design of magisk), so why not flash it and try....

 

[TerryS2K]

its a magisk module and should be reversible (part of the design of magisk), so why not flash it and try....

Fair enough, I'm still using my 6 Pro and have a 7 Pro on the way. I'll give it a try once I receive it and get it all set up!

 

[WhoIsJohnGalt1979]

Hi, does anyone know if this will also work for the Pixel 7 pro?

Works perfectly fine on 7 pro

 

[73sydney]

Works perfectly fine on 7 pro

Yup, it would have been strange if they suddenly changed the backend charging gear

 

[fernoct]

Just a quick question, everyone: let's say I download the 90% module, but charging is stuck at 90% even though it still displays as charging. Has the phone's complete disregard for input power been proven?

 

[73sydney]

Just a quick question, everyone: let's say I download the 90% module, but charging is stuck at 90% even though it still displays as charging. Has the phone's complete disregard for input power been proven?

Not sure what youre asking

Are you asking if if the limit is set to 90 and its at 90 is it still charging?

try from terminal:

su

cat /sys/devices/platform/google,battery/power_supply/battery/status

this will tell you if its charging, probably other ways via terminal...this is just the first i found...

 

[jcp2]

This works great on my P6P, any ideas if it would work on my old P3xl? running 12.1 stock

EDIT... Tried but doesn't work on Pixel 3xl

 

[LeoPeink]

I'm gathering information about the Pixel 7 battery management inner workings to write a small app to limit max charge, save presets etc.
Help me get it straight: charge_stop_level (default 100) is the SoC% at which the phone stops charging (=maintains SoC without it dropping down), at least that's how I see it working on my Px7. Editing it to 85% works as expected.
I can't figure out charge_start_level: it is 0 by default, and from what OP said earlier, leaving it at 0 should mean that the phone won't charge until dead, but if I plug it in with 60%SoC it regularly charges up to 85. Please correct me if I'm wrong, I want to learn!

 

[73sydney]

This works great on my P6P, any ideas if it would work on my old P3xl? running 12.1 stock

EDIT... Tried but doesn't work on Pixel 3xl

All the relevant switches to set limits will be different for older Pixels....i cant rememebr what it is on the Pixel 2XL anymore even...

the ones being used here are (look in modules's service.sh file)

/sys/devices/platform/google,charger/charge_start_level
/sys/devices/platform/google,charger/charge_stop_level

a bit of searching (literally 2 minutes) using search terms "battery charge limit pixel 3" would have found you this thread:

Battery Charge Limit settings for pixel 3

Hi all, I like the app, Battery Charge Limit (root required), but was wondering how to set the control file. I works fine with Xperia (with/without Lineage), but doesn't work with Pixel 3 stock firmware (Android 10). And finally found how to...

forum.xda-developers.com

i suggest reading the last post on the page, unzipping this module, editing and substituting the part between the first and last /'s in that line for the lines in the service.sh of the module, rezipping it and renaming it for pixel 3 so you know which device its for...and flashing it to test

 

[Zilla0617]

My experience with this mod is that it creates a huge wakelock causing the battery to drain excessively after it reaches it's desired stop level. This is using a Pixel 6 Pro

 

[73sydney]

My experience with this mod is that it creates a huge wakelock causing the battery to drain excessively after it reaches it's desired stop level. This is using a Pixel 6 Pro

screenshot or it didnt happen....

 

[Zilla0617]

screenshot or it didnt happen....

I guess you can chalked it up to it not happening since I did not record the information and have since moved on, just giving my experience

 

[73sydney]

I guess you can chalked it up to it not happening since I did not record the information and have since moved on, just giving my experience

its just that reporting an error is only really useful if you can provide some sort of screenshot or error log

Many of us have used this for months and not noticed any wakelock issues

 

[jcp2]

All the relevant switches to set limits will be different for older Pixels....i cant rememebr what it is on the Pixel 2XL anymore even...

the ones being used here are (look in modules's service.sh file)

/sys/devices/platform/google,charger/charge_start_level
/sys/devices/platform/google,charger/charge_stop_level

a bit of searching (literally 2 minutes) using search terms "battery charge limit pixel 3" would have found you this thread:

Battery Charge Limit settings for pixel 3

Hi all, I like the app, Battery Charge Limit (root required), but was wondering how to set the control file. I works fine with Xperia (with/without Lineage), but doesn't work with Pixel 3 stock firmware (Android 10). And finally found how to...

forum.xda-developers.com

i suggest reading the last post on the page, unzipping this module, editing and substituting the part between the first and last /'s in that line for the lines in the service.sh of the module, rezipping it and renaming it for pixel 3 so you know which device its for...and flashing it to test

Thanks for the helpful information. I changed the wording in the module and flashed it on the 3xl I passed on to my Mom. Now I don't have to worry about overcharging my 6 Pro or her 3xl

 

[kylechen]

I'm gathering information about the Pixel 7 battery management inner workings to write a small app to limit max charge, save presets etc.
Help me get it straight: charge_stop_level (default 100) is the SoC% at which the phone stops charging (=maintains SoC without it dropping down), at least that's how I see it working on my Px7. Editing it to 85% works as expected.
I can't figure out charge_start_level: it is 0 by default, and from what OP said earlier, leaving it at 0 should mean that the phone won't charge until dead, but if I plug it in with 60%SoC it regularly charges up to 85. Please correct me if I'm wrong, I want to learn!

From what I have tested so far, it is something like this:

The charge_stop_level is the trigger, it starts the "no-charge mode".
Once it starts, the charge_start_level is the "reset" of it.

except:

If the charge_stop_level is at default, the whole thing seems to be ignored.
Besides the charge_start_level, there are some other "reset" mechanisms, like reboot/plug-unplug cable multiple times, etc. etc. I randomly found.

It is a blackbox atm until someone read google's source code and explain it.