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

[hgmichna]

Chargie

The app also still works great on many devices, including mine (on Android 10).

Lucky me! If it doesn't work for you, I'm sorry, but you'll have to find another solution.

The only other solution I know that works without human supervision is Chargie. I use it successfully, since I use a phone without root.

Current price is around $10 plus shipping from Europe, so much cheaper than what I originally paid. You can order it on the https://chargie.org/ web site.

Since Chargie is not really competing with Battery Charge Limit, I think it is OK to mention it here. Battery Charge Limit is free, but works only on rooted phones, while Chargie costs money, but works on non-rooted phones.

 

[MyronAz]

You can maybe try creating read only file with the new value and renaming it to replace the original

Thanks for your help.
It won't let me copy to or create a file in the folder. I changed the permission on the folder to rwxrwxrwx but still no go.

 

[post-mortem]

Thanks for your help.
It won't let me copy to or create a file in the folder. I changed the permission on the folder to rwxrwxrwx but still no go.

It's possible that file is only for reporting, and is not intended to be read. You'll have to experiment with other files.

 

[francus]

Sorry noob question. I never rooted a phone for security reasons.
Is it possible to root the phone, set charge limit, then unroot it? Will the new charge limit survive unrooting?
Best

 

[hgmichna]

Root required

Sorry noob question. I never rooted a phone for security reasons.
Is it possible to root the phone, set charge limit, then unroot it? Will the new charge limit survive unrooting?

In normal operation the app has to change a system file whenever some charge limit is reached. So it is not possible.

Some here have attempted to modify the system charge limit, but that is something different and does not require the app.

 

[amplatfus]

Sorry noob question. I never rooted a phone for security reasons.
Is it possible to root the phone, set charge limit, then unroot it? Will the new charge limit survive unrooting?
Best

Hi. You need to stay rooted.
BR.

 

[najmulbappy]

Nice app, thank you.

 

[ziki]

Hello,

I'm using this app on a Samsung Galaxy S7 and it works perfectly with a wired charger. It also somewhat works with wireless QI charger - the battery isn't charged beyond the set limit, however the charger is still active, it's still trying to charge the phone, so that the phone eventually gets quite hot.

If I disable the app and let the battery charge up to 100%, the charger somehow 'knows' and changes it's status light from blue to green and stops charging, so that the phone doesn't get quite as hot.

I have no idea how this is accomplished - maybe there is some NFC communication between the phone and the charger? If so, could the app do the same to deactivate the QI charger when the set limit is reached?

That's is still a problem. I have a S7 too and I let say always use wireless charging and I can confirm that the charger does not stop to charge when the set limit is reached, the device does not send the correct signal to the charger.
Did someone find a solution for that?

 

[sueccae]

Happy with it so far.

I installed the module last night first time. It seemed to work. But now this:

I set 75% / 35%. The phone started to charging when level reached 34%. It charged to 75%. So far so good. But now, it keeps the level constantly at 75%.

Is this the way it is supposed to work? I thought it would discharge the battery to 34% again.

My phone does the same and I'm quite happy with it. I've known this feature from Lenovo Laptops.

In case someone in wondering:

Phone: Poco F1
crDroid 6.0 01.12.19 incl. Kernel
11.0.5.0 Firmware

Installed Magisk 20.1 just now and got the Battery Charge Limit App from the Play Store.
Limit is set to 80% with a lower of 75%.
Charged to 80% and is now just maintaining charge so not using the Battery and only powered by AC.

No issues whatsoever.

 

[ahecht]

I have a Pixel 3a with Android 10, and the phone seems to be randomly rebooting (I think it happens when it reaches the charge limit while idle, but I'm not sure). I pulled the logs using adb shell cat /sys/fs/pstore/console-ramoops-0 > ramoops.txt and it appears that I am getting a kernel panic in "batterystats-wo". The messages look like:

[ 2391.184319] c7   1337 set_restart_msg: set restart msg = `KP: batterystats-wo PC:string+0x50/0x80 LR:vsnprintf+0x264/0x730'

[ 2391.184351] c7   1337 ipa ipa3_active_clients_panic_notifier:259 
[ 2391.184351] c7   1337 ---- Active Clients Table ----
[ 2391.184351] c7   1337 IPA_CLIENT_APPS_WAN_CONS                 16  ENDPOINT
[ 2391.184351] c7   1337 TRANSPORT_RESOURCE                       -16 SPECIAL
[ 2391.184351] c7   1337 TAG_PROCESS                              -59 SPECIAL
[ 2391.184351] c7   1337 
[ 2391.184351] c7   1337 Total active clients count: 0
[ 2391.184351] c7   1337 
[ 2391.184375] c7   1337 Kernel Offset: 0x14afc00000 from 0xffffff8008000000
[ 2391.184382] c7   1337 Memory Limit: none
[ 2391.212092] c7   1337 Rebooting in 5 seconds..
[ 2396.212477] c7   1337 SMP: stopping secondary CPUs
[ 2396.212505] c7   1337 Going down for restart now
[ 2396.213291] c7   1337 qcom,qpnp-power-on c440000.qcom,spmi:qcom,pm660l@2:qcom,power-on@800: PMIC@SID2: configuring PON for reset
[ 2396.214196] Causing a watchdog bite!è[   €¡

 

[fmaher]

I set this app not to charge the battery over %85 and after a while I had battery memory issue. The phone went dead on %15 battery remaining! Don't really know why...

Just uninstalled this app, now everything backed to normal.

 

[bertoxo]

Strange behaviors:
1- app charges fine at 81% limit on my tablet Samsung Galaxy Tab Pro 12.2"(with LineageOS 14.1) then the notification keeps still no matter if i unplug the charger.. It don't goes away.
Please any way to fix this?
Thanks.

2- with my old cellphone Moto e2015 custom Rom it goes away when unplug no problem, and charges up to the limit too ok.
But no matter if it reach the limit and in fact it autostop charging it anyways still shows the symbols like if its still charging (with the charger plugged), i mean a thunder symbol or a plus(+) on side of the percentage, you get that (surely every cell must be different..).
Anyway, i can live with this 'bug' np.

 

[tinhsoftware]

It does not work on nexus 7 2013 magisk rooted stockrom 6.0.1

 

[Zaxx32]

Been havin trouble with the charge complete notification and it occasionally charging to 100%.
Decided to try the ACC Magisk module with ACC interface apk. Very similar to BCL 1.1.1 actually except it's still under development!! So far it's been flawless! I highly recommend it over BCL. Head over to the Magisk mods section for deets and d/l of mod and manager apk.

ACC thread: https://xdaforums.com/apps/magisk/module-magic-charging-switch-cs-v2017-9-t3668427

 

[yegorus]

Umidigi One Max

For Umidigi One Max with wireless charging I found that the following setting file works.

/sys/class/power_supply/wireless/charging_enabled, 1, 0

It works for wireless mode only as I see but this is Ok for me. However the application still works in an a little bit
unpredictable manner. It activates/deactivates charging when I turned on/off the function manually. However I can't
achieve this behaviour automatically yet.

Any advice?

 

[post-mortem]

Any advice?

Did you try enabling the "Always Write CTRL File" option in the settings?

 

[yegorus]

Did you try enabling the "Always Write CTRL File" option in the settings?

Yes, I enabled it. No difference found yet. I should observe its behaviour for more time to make conclusions.

 

[a9ball]

Hello,
Just installed this and it's terrific! Works perfectly with my Poco F1.
Question: what is the preferred Max voltage that we should try to stop at? I've read some phones will display 100% but have been designed to really be at 80% to extend battery life. So if I knew the best voltage level to stop at I could use that to get the best setting in this great app.
Thanks in advance.

 

[hgmichna]

Best max setting

I've read some phones will display 100% but have been designed to really be at 80% to extend battery life.

I doubt it. The manufacturers want your battery to degrade in the hope that you buy a new phone after a few years.

If you want your battery to last for thousands of cycles, almost forever, set the max to 60% (3.92 V) and charge higher only when you know that you need more during the day. This works best when you can recharge during the day, like at work. That's how Tesla cars do it. The car recommends 60%, but lets you charge higher if you need more miles.

If you need to get through the day without charging, charge as much as you need. 80% may be a good compromise. It will still extend the battery lifespan by a year or two or three.

As you can see, there is no best setting. It depends on circumstances. Even at 90% you may gain a year of battery lifespan.

 

[a9ball]

I doubt it. The manufacturers want your battery to degrade in the hope that you buy a new phone after a few years.

If you want your battery to last for thousands of cycles, almost forever, set the max to 60% (3.92 V) and charge higher only when you know that you need more during the day. This works best when you can recharge during the day, like at work. That's how Tesla cars do it. The car recommends 60%, but lets you charge higher if you need more miles.

If you need to get through the day without charging, charge as much as you need. 80% may be a good compromise. It will still extend the battery lifespan by a year or two or three.

As you can see, there is no best setting. It depends on circumstances. Even at 90% you may gain a year of battery lifespan.

So you think 3.92v would be a good place to stop charging at? That is the answer I was looking for. I find that easier to do than 80% or any percentage. How much would you say to start charging again at in volts?