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What tools do I need to replace a car battery?
I’d like to replace my car battery myself. I know I can buy a new battery at the auto parts store, but what tools do I need to replace a car battery?
Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Great question! To replace a car battery, you will need an adjustable wrench, a crescent wrench, vise pliers, and a socket wrench.
You need these tools to loosen the bolts on the battery terminal, remove the battery bracket, and clean the terminals.
Here are some additional tips to consider when selecting your battery replacement tools:
- Confirm sizing: Car battery cables are generally designed for 10mm (0.4 inches) nuts, and battery brackets typically require 10mm bolts. However, some models may use sizes like 12mm or 13mm. Double-check your car’s specs and verify the correct sizes for the tools you’ll need!
- Remove corroded parts: If you encounter rusted nuts or bolts, it’s a good idea to replace them with new parts. This will help secure the connection and prevent future issues.
- Locating parts: Depending on the make and model of your car, the battery bracket may be located on the top, side, or bottom. For side or bottom brackets, use an 8" extension and ratchet to reach the bolts with ease.
For the best results, keep these tools handy:
- Battery terminal cleaning brush: This brush helps remove dirt and corrosion from the battery terminals and clamps, ensuring solid electrical contact.
- Dielectric grease: Apply a thin layer to the terminals before reconnecting the battery for added protection and to help prevent corrosion.
- Hand and eye protection: Prioritize your safety and prevent injuries by wearing protective gloves and safety glasses.
Some cars may require specialty tools. However, for common makes and models, the above tools should be all you need to replace the battery yourself!
View full answer
- Gregory R.
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