Cleaning a Corroded Battery

Disconnect the cable clamps from the battery (negative/black first and then positive/red). Reconnect the cables to the battery securely (positive/red first and then negative/black). Any looseness in the cables can prevent your car from starting so tighten them securely.

What You'll Need:

Other Supplies
  • Baking Soda and Stiff Brush
  • Rubber Gloves
  • Wrench for Cable Clamp
  • Wrench to Remove Battery
  • Waterproof Grease

Step-By-Step Directions

Step 1

After loosening the cable clamps and battery holder, remove the battery from the vehicle.

Step 2

Begin by cleaning the entire top of the battery of dirt and oxidation using baking soda and water.

Step 3

While the battery is removed from the vehicle, clean the cable clamps until shiny with the 535 or 536 brass brush. Recommended speed: 15,000 rpm.

Step 4

Re-install the battery in the vehicle. Lightly coat the connections with grease and re-attach the clamps.

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