Note, the photo of the car battery shows it inside the home. This is not a good idea. Charging of lead-acid cells (i.e., car batteries) releases hydrogen gas,

Note, the photo of the car battery shows it inside the home. This is not a good idea. Charging of lead-acid cells (i.e., car batteries) releases hydrogen gas, having the battery inside in an enclosed space creates a risk of fire or explosion from the very flammable hydrogen gas.