I am planning to mount my android tablet to my car with a charging cable permanantly left in. The idea is as soon as I turn the car on, the tablet starts charging, and as soon as I turn the car off, the charging stops. (I’m prepared to accept the reduced battery life as a result).

It would be ideal to have the tablet turn on automatically as soon as the car does, and turn off automatically once the car does. I have found a way online to have the tablet turn on as soon as it starts charging, but I cannot find a way to make the Tablet/Android turn off once the charging stops. Could you please advise if there is an app, or a file that can be added/changed to make this happen?

Kind Regards