If I’m using an old phone for a PiHole, the the battery is there to perform a safe shutdown when the power gets cut, basically a UPS to flush the write logs.
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
^other^ ^rules^
If I’m using an old phone for a PiHole, the the battery is there to perform a safe shutdown when the power gets cut, basically a UPS to flush the write logs.