How To Fix Corroded Car Battery. 13 Your battery is old. 2 How to know if your car battery has corroded.

The best way to prevent battery terminal corrosion is to make sure the alternator is not overcharging the car battery. Anti-corrosive sprays do also work to prevent corrosion. Spray battery protector on the battery.
Available at Advance Auto Parts.
Lets take a little more detailed look over the few ways to prevent battery corrosion. 41 Use protective coating. Corroded battery terminals can certainly cause your car not to start. 42 Charge your battery.
