How To Replace A Corroded Car Battery Terminal - IFixit Repair Guide

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How to Replace a Corroded Car Battery Terminal

Introduction

Is your car having trouble starting? Is there corrosion build-up on your terminals, preventing a proper connection? This handy guide will help you remove the troublesome terminal and replace it with a brand new one.

Warning: It is dangerous to work on a vehicle battery. Exercise extreme caution when following this guide.

What you need

  1. Step 1 Car Battery Terminal

    How to Replace a Corroded Car Battery Terminal, Car Battery Terminal: step 1, image 1 of 2 How to Replace a Corroded Car Battery Terminal, Car Battery Terminal: step 1, image 2 of 2

    • Remember to remove your car key from the ignition and shut off the car before performing this guide.

    • Locate the terminals on the top of the car battery. Next to each terminal is a positive(+) or negative(-) sign, indicating the charge.

    • The positive terminal looks to be in working order, but the negative end has a lot of corrosion buildup. This terminal needs to be replaced.

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