Why Do Car Batteries Last So Long. A car would need to be driven an average of 20000 miles a year for five years just to get there however the average annual mileage for. Second your engine acts as a generator for your battery so whenever your car is on its charging the battery.
Some car batteries may even last. On average you can expect a typical battery life of 3 to 5 years. Battery costs are the problem.
Most importantly the five years answer to the question of how long should a car battery last is just an average.
Level 1 7y. Some car batteries may even last. If you follow just some of the suggestions in this article you should get above. The alternator is designed to recharge the battery as the car is being driven along.
