Questions about the switch file(s)?

[whitedavidp]

I have a rooted, Moto XT2215-4 phone. It appears that acc likes/uses a switch file called battery/charge_control_limit on this phone:

• Can anyone tell me exactly where in the file system this file is located? I am guessing in /sys/class/power_supply/battery but I want to be sure.

I also see mention of "0" (zero):

• Does this mean that echo'ing 0 into the switch file disables charging (and that 1 enables)? On other devices, I have written my own routines that do this sort of thing.

Finally, I see mention of a file called battery/charge_control_limit_max and I see such a file also in /sys/class/power_supply/battery:

• Is this the one?
• How is this file used?

Thanks very much!