Call Us Today (714) 841-1949
(After Hours) 657-464-5674
18471 Repair Ln, Huntington Beach, CA 92648
Or email us greatservice@hheaven.com
img

Latest news

The Official H.Heaven Customer Information Site, where we post articles, alerts, customer repair status and everyday things that you can do to help make your car run better and last longer

  • Home
    Home This is where you can find all the blog posts throughout the site.
  • Categories
    Categories Displays a list of categories from this blog.
  • Tags
    Tags Displays a list of tags that have been used in the blog.
  • Bloggers
    Bloggers Search for your favorite blogger from this site.
  • Team Blogs
    Team Blogs Find your favorite team blogs here.
  • Login
    Login Login form

Disconnect and Reconnect Car Battery

Posted by on in H.Heaven Easy Auto Repair
  • Font size: Larger Smaller
  • Hits: 1780
  • 0 Comments
  • Subscribe to this entry
  • Print

Disconnecting and reconnecting your battery

fotolia 1303298 XSIf you're going to do any work on your car involving the electrical system, disconnect the battery first. To do this, loosen the connector for the negative/ground terminal first, and wiggle the terminal cap off. Use a wire-tie or similar to tie the cable back out of the way. If you need to take the battery out, you can now take off the positive connector.

Why negative then positive? If you disconnect the positive side of the battery first, the negative side is still connected to the entire car. If you drop a tool and it lands on the positive battery terminal and touches anything else on the car, you'll have an electrical short. By disconnecting the negative first, you're cutting off the return path for the current. Now, if a tool drops on to either of the battery terminals, it doesn't matter if it touches part of the chassis or not - there's no continuous path for the electrical current.

Reconnecting your battery. Connect the positive terminal first, and the negative second - the reverse of removal, and for the same reasons. When you slip the negative connector on, there will be a spark as it gets close and makes contact with the negative battery terminal. Don't be afraid of this - it's nothing to worry about. Make sure the terminal caps are done up nice and tight.

Check your battery terminals

Most modern cars run on a 12 volt negative ground electrical system. If your battery terminals or contacts aren't clean, you're making it more difficult for the current to pass around the electrical system. Remove the terminal caps as described above and clean each contact post with a wire brush to get a nice clean metal contact surface. Do the same to the terminal caps, then reattach them as described above.

0

Comments

  • No comments made yet. Be the first to submit a comment

Leave your comment

Guest
Guest December Tuesday, 06 2016