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Re: Battery Testers
Posted to Tool & Equipment Forum on 3/28/2021

Leonardo, typical battery internal resistance is around .007 ohms (7 milli ohms). But it will change rapidly (increase) with high amperage draw. So if the battery has 12.5 terminal volts (measured with 10,000,000 ohms input impedance volt meter, and the rotati... Login to read more.