Baking soda and water.
No, but they will corrode at the battery posts. Clean them off with water and baking soda. Then use a battery post cleaning tool to clean the post off.
Use a mixture of baking soda and water.
use a mixture of bicarb and water and let dry completely
Clean it with a mixture of baking soda and water.
Pouring hot water on a car battery may temporarily help dissolve some of the corrosion, but it is not a recommended method as it can potentially damage the battery. It's best to use a mixture of baking soda and water to clean corrosion from a car battery.
nope. you might have to clean the terminals to the battery with a wire brush, but it doesn't hurt the car at all.
Wash it off?
First clean battery connections, if this does not correct problem the battery needs replacing.
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.
yes
id depends on the size of the car and if the battery will fit in the car
As long as both batteries are the same voltage, you can jump start with the battery. If you want to charge the battery then use a battery charger.