Which Battery Terminal Do You Hook Up First. Remove black remove red attach red attach black. It runs to the engines alternator.
Connect to the positive cable to the positive. When disconnecting the cables from the old battery disconnect the negative first then the positive. When installing a mower battery always connect the positive cable first.
Set an additional battery in position next to the existing house battery that runs everything but your engine.
Attach the existing house battery to the new addition by connecting neutral black port to positive red port. Youll need another car and a pair of jumper cables or a portable jump starter. Connect the clamp on the red jumper cable to the positive terminal on your car battery and the black one to either an unpainted piece of metal in the engine or directly to your cars chassis the frame of the vehicle. Which car battery terminal to connect first.
