Can a dirty battery case kill a battery?
Can a dirty battery case kill a battery? Not unusual to get very minor "leakage" across a dirty battery case. Generally more common with top post batteries. Put a light bulb in place of the ammeter. If the light comes on, there is enough "leakage" to kill the battery. If it does not come on, chances are good the leakage is not enough to worry about. What should I do if my F-250 battery is draining? you might want to disconnect the ground cable from your battery then put your battery charger on it to bring it up to full...