To change a car battery, loosen the nuts that secure the cables to the terminals, and then lift the battery out of the car to exchange it for a new one. Wear gloves and safety glasses to protect yourself from acid leaks.Continue Reading
Mix a cleaning solution together that is one part baking soda and one part water.
Use a hammer to tap on the terminal posts and cables to remove some of the sulfate deposits.
Dip a paintbrush in the cleaning solution, and brush it on the terminals to remove the rest of the deposits.
Use a rag to wipe the terminals clean.
Use duct tape to seal any cracks in the battery where acid might leak.
Use a wrench to loosen the nut that secures the terminal cable to the negative post, and hold the head in place with a pair of pliers.
Disconnect the clamp once the nut is loose to remove the cable.
Repeat the procedure to remove the positive terminal cable.
Loosen the nut that secures the plate over the battery.
Grab hold of the handle or the sides of the battery, and lift it out of the car and onto the ground.
Use the paintbrush to remove stray sulfate deposits from the cable clamps and battery compartment.
Spray the ends of the terminal cables with corrosion protection.
Place the new battery in the battery compartment, and secure it.
Clean the new terminal posts, and spray them with corrosion protection.
Connect the positive cable before the negative cable, and then secure the nuts.