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Red McCombs Body Shop in San Antonio, Texas
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4800 NW Loop 410, San Antonio, TX 78229
Hours: Monday-Friday 7:30am to 6:00pm. Saturday & Sunday closed

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How Long Could Your Car Battery Last?

Jan 16, 2023


Car batteries die eventually. They all do. But how long could your car battery last? That depends on a number of factors. What kind of battery do you have? Have you accidentally left any headlights or anything on? What kind of climate do you live in? Here in San Antonio, Texas, the news isn’t good in that department. Let’s examine your car battery and go over how you may be able to extend its life.


First and foremost is the climate. There’s really not much you can do about this one. You see, extreme heat can cause the solution inside your battery to evaporate. However, if your battery is in a remote location such as the trunk or under the seat, it may be somewhat protected from the heat.

Battery Life Expectancy

Previously, car battery makers sold 48-, 60-, 72-, and 84-month options. These days those time period estimates are not used very often because so many factors can impact your battery’s life, such as the climate here in Texas. Now, look for terms such as “good, better, and best,” to differentiate battery levels. Remember though, few car batteries last longer that five years, so keep that in mind the next time you shop for a new one.

Why Batteries Don’t Last Longer

Many batteries are wet cell, also known as flooded car batteries. They contain a mixture of two-thirds water and one-third sulfuric acid. Over time, this solution begins to eat itself and weaken the battery.

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Extend The Life Of Your Battery

First and foremost is proper maintenance. Is the battery securely fastened in its tray to minimize vibration? In addition, check the charging system. Are the alternator and belts in good condition? If you can easily see the battery, check the terminals to be sure there isn’t corrosion building up. And of course, try to get into a habit of making sure your headlights are turned off when you leave your vehicle at night.