Rick's Free Auto Repair Advice

Posts Tagged: charge dead battery

Charge a car battery

How to charge a car battery How a battery charges Car batteries recharge in three phases; reconditioning, bulk, and absorption phase.  Reconditioning phase The reconditioning phase is designed to break down the sulfate crystals that formed during the discharge and return them to the electrolyte solution. If you skip the reconditioning phase and just try to recharge the battery by jamming in high amperage, the high resistance from the sulfate crystals will generate high heat that can warp the plates and damage the battery. Once the reconditioning phase is complete, … Read More


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