When Should You Change Car Battery. According to NAPA Auto Parts a healthy car battery shows 124-127 voltsIf its slightly below that jump-starting and driving your car for an hour should be enough to recharge it. This is the most common sign when the car battery is losing the charge and it needs immediate recharge.

When the vehicle is parked for extended periods of time the battery. How often should you replace car battery. To avoid this situation the battery should be replaced before its capacity drops to a critical level.
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How often should you replace car battery. Instead of waiting until your battery dies before you replace it you can buy a new one before the car battery life is depleted. On average your car battery should last five to seven years. Ad Need a New Battery.

