How to Test Your Car’s Battery

Your car’s battery might be a little slower at turning the engine over as winter nears its end. Extreme temperatures can be very hard on the battery. There are a couple of ways you can check its performance. It’s recommended to first check the cells’ fluid levels and top off with distilled water it needed. If levels are fine, then check the voltage.

Your voltmeter should register 12.6 volts on a fully-charged battery. If you’re testing voltage on a running vehicle, it should hold between 13.7 and 14.7. When you don’t have a voltmeter handy, you can still get a basic idea of how the system’s charging. Start the engine and turn on the headlights. If they are brightly illuminated and remain consistent when you rev the engine, then the charging system’s fine. If, however, they appear dim, or their brightness fluctuates as you rev the engine, then it’s time to have them checked. It could indicate that the system is only running on the battery’s charge.

Bring your vehicle by our service center at Anderson & Koch Inc.. One of our knowledgeable technicians will be happy to run a voltage test. We’re here to assist you with all of your vehicle’s maintenance.


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