... ~199.9m,200~1999m, ( Voltmeter OF INTERNAL BATTERY RESISTANCEModel: SM8124Shenzhen Sanpo Instrument Co.,Ltd (A2) ... battery voltage canalso be measured at the same time. It isapplicable for measurement of internalresistances of Lithium-ion, nickel-hydroxide,lithium-manganese ... cells or assembled battery.3 1/2 digits ...