Cleaning your Battery ConnectionsBattery terminals tend to get corroded over time which increases the resistance and reduces the quality of the connections. If the corrosion get bad enough, you might find yourself sitting in 3 feet of snow wondering why your car won't start. The corrosion looks like ashy white deposit on the terminals of your battery. This corrosion will actually build faster if you don't run your car that often. So if you notice corrosion build up on your battery its time to give those terminals a good clean.
First, mix together 1/2 a cup of baking soda with 1 1/2 cups of water.
Pour the mixture on the battery connections and let sit for 10 minutes.
Next take a medium stiffness wire brush, and scrub the connections/posts until they are free of any more corrosion.
Rinse the connections with a little warm water.
If this is a car battery you are cleaning you may want to consider installing anti-corrosion discs to help prevent your posts from corroding as fast.
That is it! You've officially cleaned your battery connections.