How Do Maintenance Free Batteries Work?


It used to be that car batteries would lose electrolyte fluid, especially in hot weather. They would need to have the fluid level checked and maintained, similar to a radiator. How maintenance free batteries work is by using calcium lead plates which don't have the same problems the older batteries used to have.
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Maintenance free batteries work by storing essential elements. Car batteries are an excellent example of a maintenance free battery. Any battery that works with little or requies no maintenance is considered a free battery.
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