Testing Your Car's Battery

If you've ever been left stranded somewhere by a faulty battery, you know how important it is to have one that functions properly, especially during extreme weather. Unfortunately, extreme weather can also take a toll on a battery, straining it past its ability to supply energy.

Test your battery's strength using a device called a voltmeter, which you can buy in any auto parts store. Ensure your car isn't using any power by removing the key from the ignition, then place the red voltmeter clamp on your battery's positive terminal. Place the black clamp on the battery's negative terminal.

Your reading will ideally be in the positive range between 12.6 and 12.4. If it's lower, such as 12.2 or 11.8, this indicates a weak battery that you should ideally have changed, or it may not start in subzero temperatures. Testing your battery as winter approaches is an excellent way to avoid a dead battery. Finish the job by removing the black clamp first, followed by the red clamp.

 

 

Categories: Service