[APP][ROOT][4.0+]Battery Charge Limit v1.1.1

[mmoiron]

Feature request / application idea:
I no longer root my smartphones but this is something I'd like to have. I've tried to do something similar with Tasker but didn't manage to get it working properly. It would be nice if your application was able to send GET requests to switch ON or OFF a smartplug (sonoff basic with Tasmota but should work with others) thus controlling the charging process. Another nice functionality would be to keep battery level between two thresholds, say 75-80, until time to next alarm is less than a certain time (1 hour). This would allow us to charge our smartphones every night, without having it fully charged for too long, yet maintaining the full charge available when the wakeup alarm is triggered.
Just an idea.
Cheers
MFM

 

[larsdennert]

Feature request / application idea:
I no longer root my smartphones but this is something I'd like to have. I've tried to do something similar with Tasker but didn't manage to get it working properly. It would be nice if your application was able to send GET requests to switch ON or OFF a smartplug (sonoff basic with Tasmota but should work with others) thus controlling the charging process. Another nice functionality would be to keep battery level between two thresholds, say 75-80, until time to next alarm is less than a certain time (1 hour). This would allow us to charge our smartphones every night, without having it fully charged for too long, yet maintaining the full charge available when the wakeup alarm is triggered.
Just an idea.
Cheers
MFM

Buy a new oneplus phone or iPhone. They have this feature built in.

 

[sfaeium]

My old Nexus 5 has a ROM which sets the control file to be read only, so without "user intervention" Battery Charge Limit (BCL) won't be able to change the content of this file and it won't work as expected. As a workaround, I created a script using ElementalX Kernel Manager, which runs after every boot, to allow the control file to be writable. After that BCL works perfectly.

My other rooted Android devices don't need this workaround.

Could you share this script?

 

[aamadorj]

My old Nexus 5 has a ROM which sets the control file to be read only, so without "user intervention" Battery Charge Limit (BCL) won't be able to change the content of this file and it won't work as expected. As a workaround, I created a script using ElementalX Kernel Manager, which runs after every boot, to allow the control file to be writable. After that BCL works perfectly.

My other rooted Android devices don't need this workaround.

Could you share this script?

Sure, it's attached as a text file.

 

[d3smond]

I have a Xiaomi Mi 10T Pro running Lineage OS with Magisk.
I granted root permission for the app but the app does not work, I set it to 80% but it charged past 80%.
What do I have to change to make it work?

Thx

 

[yaconsult]

I would LOVE to get this working on my new Pixel 4a 5G. Here are the nodes under the power_supply directory. Can someone tell me how to enable and disable charging on this magisk rooted phone? I am willing to experiment and report back results.

I have uploaded a copy of all the file nodes under /sys/class/power_supply at the following pastebin:
https://pastebin.com/T0VJqiW4

I know something has changed on the 4a 5G because advanced charge controller worked fine on the 3a but on the 4a 5G the phone always thinks it is charging even when ACC has stopped the charging.

Thanks!

 

[Gibsonflyingv]

I would LOVE to get this working on my new Pixel 4a 5G. Here are the nodes under the power_supply directory. Can someone tell me how to enable and disable charging on this magisk rooted phone? I am willing to experiment and report back results.

I have uploaded a copy of all the file nodes under /sys/class/power_supply at the following pastebin:
https://pastebin.com/T0VJqiW4

I know something has changed on the 4a 5G because advanced charge controller worked fine on the 3a but on the 4a 5G the phone always thinks it is charging even when ACC has stopped the charging.

Thanks!

I'm also trying to get this to work on my P5. I noticed, when I was looking, only some of those are files are writable. I don't know much about this stuff but I wonder if setting "current max" to 0 once we hit our limit would do it?

 

[evronetwork]

Wish this app would still be in development, my gf phone(my prev phone) oneplus one works great, as for mine Xiaomi Mi Mix 2S, I need to reset battery stats each time ...but it does honor the limit

 

[sielhadi]

It works like a charm with galaxy s20 ultra. Thanks

 

[urekeli]

nice app

 

[pleomaxell]

I am trying to make it work on Nexus 7 3G. The default /sys/class/power_supply/battery/status file isn't working. It keeps on charging past my set limit. Is there any other way to make it work?

 

[the_cr0w]

I am trying to make it work on Nexus 7 3G. The default /sys/class/power_supply/battery/status file isn't working. It keeps on charging past my set limit. Is there any other way to make it work?

same to me in my asus zenpad 10
it shows only motorola defy+ in the control files, don't know if that is the problem

UPDATE: found out that the app should automatically edit /sys/class/power_supply/battery/charging_enabled but on my device the control file points to /sys/class/power_supply/battery/status , which is a file that does not have a binary value, thus cannot be automatically switched, i guess? however a custom file can be pointed enabling configurable ctrl file data option, but i don't know what file should be. any ideas?

 

[pleomaxell]

But is there a charging_enabled file on /sys/class/power_supply/battery/?

 

[the_cr0w]

But is there a charging_enabled file on /sys/class/power_supply/battery/?

no! maybe that's the problem ? or maybe there is another file with the same function?

UPDATE: found out that there is a file in sys/class/power_supply/ac/device that is called charge_status, and as expected the content of the file is 0 while not plugged and 1 while plugged. i tried to set that as ctrl file but nothing changed, then i noticed that it has only read permissions, tried to set rwxrwxrwx so that the app could edit the file but changing the permissions bugged my system ui and forced me to reboot. after booting the permissions of the file are reset into r--r--r--. Is this the problem?

 

[pleomaxell]

There is another file called sys/class/power_supply/ac/online which becomes 1 when the charger is connected. I face similar issue with that file too. The phone restarts as soon as I change the permission and set an upper and lower limit.

 

[the_cr0w]

There is another file called sys/class/power_supply/ac/online which becomes 1 when the charger is connected. I face similar issue with that file too. The phone restarts as soon as I change the permission and set an upper and lower limit.

eww let me know if you find out anything new... i guess the app is discontinued by the developer as of now, and it's sad because it's still used even in modern devices

 

[Saqib Mushtaq 74]

S:
Used battery charge limit app to charge only to 99% but now turned off but still it does not charge to 100% now any solution to get 100 chrgd

Like editng some value in root folder
I am using redmi note 7

 

[amn1987]

I would LOVE to get this working on my new Pixel 4a 5G. Here are the nodes under the power_supply directory. Can someone tell me how to enable and disable charging on this magisk rooted phone? I am willing to experiment and report back results.

I have uploaded a copy of all the file nodes under /sys/class/power_supply at the following pastebin:
https://pastebin.com/T0VJqiW4

I know something has changed on the 4a 5G because advanced charge controller worked fine on the 3a but on the 4a 5G the phone always thinks it is charging even when ACC has stopped the charging.

Thanks!

If its possible to set the proper permissions then try lowering charge voltage and/or current in constant_charge_current, constant_charge_voltage or voltage_max_design etc. BCL works out-of-the-box in my Poco F1 but in addition I have limited charging voltage and current as well. At 4.15V battery charge hits 80% thereafter the battery light starts blinking. If I then increase voltage to 4.2V battery light stops blinking. But in my case the files are differently named constant_charge_current_max and voltage_max. Dunno if it work for you. Experiment with various files.

 

[Heinz_P]

I install it today on a Samsung Galaxy Tab SM-T585.
It works fine, but I can not clear the statistik in the Tab.
I delete
/data/system/batterystats.bin to clear stats
But it is still there.

Edit:
Now it works, statistik is ok.
I delete the file, power down the Tab and start again and after 80% the stat is correkt.

Edit 2:
After a new charge the statistik is wrong again and nothing helps to clear it.

 

[@kitokit]

I've been using this app for a while now, I'm using a Mi9 with RR Rom a10, before I set my limit to 85 and 2O percent.. and then I decided to increase it to 90. What I've noticed is, whenever I charge my phone, when my battery reaches 85 it notifies me that it has reached the limit and after a second it will start charging again obviously because I set it to 90, and when that level is reached it will stop charging.. but it will start charging again at 80 percent, even though I set the minimum to 20.. any ideas why is this is happening..
I've already tried to uninstall and rebooted the phone and then reinstall the app, but same problem I face.. any help?