Testing Your Car's Battery

Seasonal temperatures at extreme ranges can cause stress to your battery. In the depths of winter or during high summer heat, an aging battery can fail to fire, leaving your car in the lurch. Regularly testing your battery can help to avoid an occasion where you become stranded.

Take your key from the ignition and turn off all the vehicle's lights before you begin. Using a voltmeter, clamp the red lead to the positive battery terminal. Clamp the black lead on the negative terminal. Readings in the 12.4 to 12.6 range with a state of charge between 75 to 100 percent are good; if your readings are 12.2 or below, you may want to think about replacing your battery. Remove the black lead from your battery first before removing the red lead.

If your battery needs replacement, be sure to stop by Sill-TerHar Mazda in Broomfield, CO, where their knowledgeable mechanics are ready to help you with every aspect of car care.

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