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: July 8, 2018
Heat can also decrease a battery's lifespan significantly. Hot weather causes liquids inside batteries to evaporate as well as internal damage. This can occur whether you are driving or if the car is parked. The magazine recommends that vehicle owners in hotter parts of the country have their car battery tested after two years of ownership and then every year after. Those who live in colder areas can wait four years after buying a car to test performance and capacity, then every year after.
The charging system will normally consist of two major components: An Alternator which actually supplies the necessary electrical current in order to charge the battery, and a Voltage Regulator. The latter insures that the system does not overcharge the battery, and that the correct system voltage is maintained. Most vehicles produced within the last 20-30 years use a voltage regulator which is an integral part of the alternator itself. This article assumes that your vehicle uses this type of alternator.