How To Clean Battery Connectors On Car. How to clean battery terminals. Simply disconnect the battery starting with the negative terminal.
Pour some white vinegar into a cup or a bowl. Battery cables should be kept clean in order to maintain contact with the starter and engine. So you could use a 180 grit sandpaper you could use one of these abrasive pads or you could use a metal wire brush.
After you spray the product on the terminals and clamps you may notice a foaming reaction.
Note that the solution will bubble. Filing metal from the jaws of a clamp connector. Remove the damaged battery and put it in a plastic bag. To clean corrosion off the battery.
