This summer’s extreme temperatures can destroy a vehicle’s battery. The Car Care Council advises vehicle owners to have their cars’ batteries tested periodically and replaced, if necessary, to avoid being stranded.
Excessive heat and overcharging shortens the life of a battery. Heat causes battery fluid to evaporate, which then damages the internal structure of the battery. A malfunctioning component in the charging system, usually the voltage regulator, allows too high a charging rate, which will eventually destroy a battery.