How-To Clean Car Battery Terminals (S03E-Quick Tip: 02)

This Motorz TV Quick Tip shows you how to clean your vehicle’s battery terminals when they become open to the elements such as oxidation and corrosion.

Why bother?

Every time you start your car, the starter looks for juice from your battery to turn itself over. If you have a bad connection on your battery terminal due to corrosion, oxidation, and other nasty elements, your trip to Starbucks or the local parts store just got a whole lot longer.

Corrosion of the battery terminals is a very common problem and can be identified with a white and crusty residue that forms around the battery posts. To clean the terminals, simply pick up a battery post brush at your local parts shop and clean up the terminals themselves. Remember to always remove the negative battery post first before touching the positive terminal.

If you want to prevent corrosion a bit further, pick up some Dielectric grease for under $20 bucks and apply it around each battery post. This is available at any auto parts store, and even some hardware stores.

16 Comments
  1. This was originally uploaded Feb 11th, but was accidentally deleted. Apologies to those who posted all the great comments. Please feel free to re-post!

  2. I’ve just had my first car… actually it’s a hand-me-down from an uncle. I’m glad I saw this video. It actually helped a lot especially for someone like me.

  3. i never had a problem with dirty terminals had all deep cycle batteries. but was told this could be y my batteries stopped holding a charge. they lasted me 5years i was hoping for longer like a life time battery cost me 300bucks to only last 5years ;(

  4. i never had a problem with dirty terminals had all deep cycle batteries. but was told this could be y my batteries stopped holding a charge.they lasted me 5years i was hoping for longer like a life time battery cost me 300bucks to only last 5years ;(

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