Why do my batteries suddenly discharge?

Why do car batteries left on the ground discharge?

  • Answer:

    Typically this used to be the case. Today most batteries are now encased in polypropylene which is considered to be a good insulator. Battery cases long ago used to be made of a rubber that had a high carbon content. If the battery was set on moist concrete an electrical current could be conducted through the case if the floor made an electrical ground. All batteries will eventually self discharge due to chemical changes, heat, cold and other outside issues. It is still recommended to fully charge the battery and place the battery on a platform that cannot absorb water or conduct temperature to prolong battery storage life.

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