Acid may leak from the
battery
at the cable connections, resulting in corrosion on the
battery cable ends
and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.
Use a wire brush to clean the battery contacts. My battery lasted 3.5 more years
20000 Miles
When I lived in SC I came out one day to get in my car and it wouldn't start. Called auto service, he poured coke on the cables and started the car. Bought a new battery and have since changed to another battery.