Installing Car Battery Which Terminal First. Whole car except a few parts like the positive pole are connected. Check battery height to ensure there is sufficient bonnet clearance.
Prepare your new battery for use by installing anti-corrosion washers on. After youve removed your car battery its time to install the replacement. Next disconnect the black cable then the red cable and remove the battery from the vehicle.
Now connect both the cars battery with the red clips to the positive terminal first and then connect black clips to the negative terminal.
Side terminal 389 nut. There is a simple test you can carry out to determine the condition of your battery. In particular you want to connect the terminal which is not connected to the chassis metalwork of the car some older cars connect positive to the chassis in which case you should connect the negative first. Roadmaster specifies that the Automatic Battery Disconnect RM-766 be installed on the positive side of the battery for proper operation on your vehicles electrical system.
