How to Replace a Car Battery

how to replace a car battery

It’s not too hard to replace a car battery – much easier than you think! So if you don’t want to spend the money on a maintenance trip but your battery is shot, you should be able to do this at home by following these simple steps.

Always let your vehicle cool off before you start working under the hood or you might burn yourself. Once the vehicle is cool, find the battery and start by disconnecting the black (negative) battery cable from the battery using a wrench or, preferably, a tool designed for the job like a battery wrench. Be very careful not to let metal touch the battery posts.

Next disconnect the red (positive) cable. There will be a clamp holding the battery in place; remove it and place any loose parts in a secure spot where they won’t get lost. Now, pull the battery out, being careful not to wiggle it too much and hit the sides.

Put the new battery in its place and secure it again with the clamp. Clean it off, remove the caps on the posts, and then apply dielectric grease and put anti-corrosion washers on the posts. Reconnect the cables, starting with the positive.

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