Battery Maintenance

(Difference between revisions)

Revision as of 21:48, 17 December 2012

A car Battery needs regular TLC.

Cable Cleaning

The battery cable connections should be cleaned once a year.

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The number "my car won't start" problem -- with new cars or old -- is the battery cable connections.

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Note: If the positive battery cable is really bad, replace it. Reasons to replace it include:

• Corroded bolt, so cable can't be tightened
• Green corroded wires (white corroded can often be cleaned up with a wire brush)

1. Remove the negative battery cable first so that any accidental touch of the wrench will not cause a spark
2. Remove the positive battery cable
3. Wipe the battery down with a damp cloth. In a glass, mix a bit of Baking Soda with water. This is a base solution which will nuetralize any acid film on the battery. Carefully wipe the top of the battery clean. Dry with a paper towel.
4. Dip the battery cable terminals ends in the glass to nuetralize acid deposits
5. Use a battery brush to make the battery posts shiny. Alternatively, you can scrape the posts with a flat screwdrive until shiny bare metal is showing all around.
6. Use the battery brush on the inside of the cable ends. Or scrape with a knife.
7. Coat the bare metal with battery-spray (alternatively, you can use a thin coating of grease or clean oil). This helps protect against corrosion.
8. Replace positive cable and tighten to specification (not too tight!)
9. Replace positive cable and tighten to specification
10. Test for proper car operation, including starting the engine
11. Reset the radio presets