How Long Do Car Batteries Last?

A common question among car owners: how long can a car sit before the battery dies? Source: Reader’s Digest

In ideal conditions, your car battery can last for about 5-7 years. It will last longer if you drive your vehicle daily and keep it fully charged. Some batteries last longer than others because of proper maintenance. On the other hand, warm climate or excessive humidity can increase battery damage due to sulfation and water loss.

However, it is also important to know that your car battery will lose its capacity to hold its charge over time. After approximately four (4) years, the car battery will begin to wear out regardless of maintenance. Without notice, your engine might run slower than usual, dash lights and headlights end up flickering or start to dimmer. Some signs also include frequent jump starting and need for revving, and fluctuating power.

As mentioned, the performance of a car battery also depends on proper maintenance. Some simple steps on how you could take care of your car battery are as follows:

  1. Check the battery’s water level every 2 to 3 months
  2. Check the battery’s specific gravity and electrolyte level.
  3. Check the battery insulator
  4. Clean the battery terminals with a wire brush every 6 to 8 months
  5. Coat the battery with grease made for high temperatures
  6. Inspect cell voltage every time you get an oil change or have your car in for maintenance.
  7. Remove car battery if there is a rotten egg smell coming from it.

Take note that since most replacement car batteries are sealed, car owners can’t check some components of the battery such as its water level.

The battery is a vital part of a car, so it’s absolutely essential that you take care of it and monitor its condition. So going back to the question, “How long do car batteries last?” Basically, if you can no longer charge a car battery, it’s time to replace it. You can check JC Whitney for car battery replacement:

Author: JC Whitney

JC Whitney is the largest and oldest catalog and Internet direct-to-consumer auto parts and accessories retailer in America. Since 1915, JC Whitney has been filling the needs of customers by providing the right part at the best price. You can always shop with confidence at

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