Why does a car battery die?

The most common reasons a car battery dies are: Old age - Car batteries typically last 3-5 years. Cold weather - Low temperatures reduce a battery’s strength. Parasitic drains- Things like dome lights draining the battery. Defective alternator - Not recharging the battery properly. Corrosion - Buildup of dirt and acid on the battery terminals. Do you like this kind of question and answer please visit for more: