... range:0~199.9m,200~1999m, ( Voltmeter OF INTERNAL BATTERY RESISTANCEModel: SM8124Shenzhen Sanpo Instrument Co.,Ltd (A2) Voltmeter of ... internal battery resistance is mainlyused to measure battery terminal voltage andinternal resistance. The internal ... Lithium-ion, nickel-hydroxide,lithium-manganese cells or assembled battery.3 1/2 digits 18mm LCDVoltage Measurement Range: 0 ...