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For the term "diy spark gap battery charger".

35 Watts 12 Volt halogen bulb test as the load on the ALUM electrolyte car battery

http://www.overunity.com/13731/how-to-convert-a-lead-acid-car-battery-to-an-alum-battery-part-1-to-7/ In this video I am showing a 12 Volts 35 Watts halogen bulb connected to the ALUM car battery as the load. I am showing the voltage at the battery and the current…