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Clean it with a mixture of baking soda and water.
It can block the charge from the battery to the system if there is to much. The corrosion gets between the terminals and the power won't go through. If you have corrosion on your terminals you need to clean them.
It will help, but a much better solution is to remove the battery cables, clean the connections and then use baking soda to neutralize the corrosion.
More than likely you have corrosion at the terminals. Clean the battery terminals and then recharge the battery and see what happens.
A mixture of baking soda and water. Rinse with clean water.
this happen to me and turned out to be corrosion on battery terminal, clean them very good.
Best is a wire brush and baking soda. You can use grease to coat the terminals to slow down the corrosion.
Corrosion from the sulfuric acid. The electrolyte (water) inside the battery is a mixture of sulfuric acid and water. Those blue crystals is just corrosion. You need to clean it off. Remove the negative black (-) cable first and then the positive red (+) cable. With a mixture of 25% baking soda and water, clean all this corrosion off the battery and the cables. You can also use vinegar. Dry everything off and then clean the connections with a battery post wire brush you can buy at any parts store. Reconnect the battery cable positive first then negative.
Check your cables for corrosion; if there is any,clean them or replace them. Clean the connections at the starter and clean all grounding wires; test the starter regardless if you think it is good. Clean the battery terminals.
No, it is battery acid corrosion caused by leaking fumes. Clean it off with water and baking soda which will neutralize the acid.
It could start but if it is indeed corrosion you probably want to clean it off. Somtimes people will lightly apply a form of anti-corrosion grease to battery terminals to prevent corrosion. Your typical signs of battery corrosion look like greenish or white stuff that will crumble away easily when disturbed. You probably don't want to touch it though a bottle of water and some old rags (where some protective gloves and/or wash hands thouroghly afterwards) that you can throw away, should clean it up. The battery terminal affected should be removed and cleaned to a shine with a wire brush for best results. Be careful working around battery terminals as not to short the battery it could be very dangerous. But yes battery corrosion will definitly cause a car to not start. I don't recall seeing it look like grease, that is unusual. Hope this info helps.
Baking soda and water. It will neutralize the acid. After removing the acid clean the post with a battery cleaning tool you can buy at any auto parts store.