There’s a fairly straightforward initial answer to the question of “how long will my car battery last?â€â€”up to five or more years, on average. However, certain problems and proper care failings can impact and shorten its life, including but not limited to:
Lights left on. If you’re put in a position where you must jumpstart your car, the lifespan of your battery will drop.
Loose battery clamps. When this issue occurs, the resulting vibrations can make your battery’s parts break down more quickly over time.
Extreme weather. Very cold weather may drain a nearly dead battery enough that it finally dies; conversely, hot weather may evaporate battery fluid.