Car Battery Testing and Replacement in San Antonio, TX

Battery Testing

Most people think cold weather kills car batteries. In South Texas, heat is the bigger problem. High temperatures speed up the chemical reactions inside a battery and evaporate its fluid, which shortens its life. A battery that got through a San Antonio summer often gives out the first cool morning after.

A battery test measures how well your battery holds a charge and how much starting power it has left. It takes a few minutes and tells you whether you have months left or should replace it before it strands you.

Signs your battery is getting weak

• The engine cranks slowly, especially in the morning
• Headlights dim at idle or when you start the car
• A battery or charging warning light
• Corrosion, a white or blue crust, on the terminals
• The battery is more than three years old

Sometimes a battery is fine and the real problem is the alternator or a parasitic drain. That is why we test the charging system too. If you keep getting dead batteries, our vehicle diagnostics service can track down the cause.

Testing and replacement

Battery testing and battery replacement are done at 12040 O'Connor Rd on the Northeast side. Walk in for a test. It is a smart check before summer and again before your first road trip of the year.