Rick's Free Auto Repair Advice

Posts Tagged: recondition a battery

How to charge a car battery

How to charge a car battery What happens inside a dead battery as it discharges? As a battery discharges, sulfate crystals form on the battery plates. The sulfate crystals reduce the plate’s active surface area, which, in turn, reduces the battery’s ability to produce power. Worse yet, the sulfate crystals act as an electrical insulator, increasing the battery’s internal resistance. That electrical resistance makes it harder to recharge the battery, so battery recharging should always start with a reconditioning phase to break down the sulfated crystals and return them to … Read More


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