How To Replace Your Own Car Battery. To change a car battery youll need supplies like a socket wrench gloves protective eyewear just in case and petroleum jelly. If the nut on the battery terminals rounded so that the wrench just slips around it use the channel lock pliers in the Battery Service Kit.
Identify the positive and negative posts and the respective cables attached to each. Youll have no option but to call for assistance if your battery goes dead if you are on the road. Take off the plastic caps on the battery posts and snap on the protectors.
Detach the negative black battery cable from the battery.
Heres how to replace your car battery. Identify the positive and negative posts and the respective cables attached to each. Twist and pull up on the end of the cable with your hand. Locate the positive battery terminal and take note of it.
