Which Terminal Do You Remove First On A Car Battery. You should always remove the NEGATIVE terminal cable first. If you can just connect the positive red alligator clamp to the positive terminal and the negative black alligator clamp from the charger to a metal ground on the car or the negative battery post and plug the OPTIMA charger in to an outlet it will eventually turn on automatically and do the rest.
From personal experience you dont want to accidently short the positive terminal to ground while removing it. The reason is safety and applies only to removing the red positive cable. When removing a battery do you remove negative first.
To install a new battery first remove the covers on the new battery.
Install a New Battery. Second always remove the battery. This prevents unnecessary battery drain as a fully charged battery can hold its charge for 6-12 months if you do this. Can a car battery drain with the negative cable disconnected.
