... °C TEMPERATURE BEHAVIOR(0.5C) ≥95%INTERNAL RESISTANCE(mΩ) ≤18 VOLUME DESITY(Wh/L) ≥190 -20 ... COMMUNICATION EQUIPMENT:communication base station, hand-held position meter, portable broadcasting station.2,MEDICAL EQUIPMENT:monitor, ... light curing unit3,INDUSTRIAL EQUIPMENT:water quality testing meter, stone tester, laser indicator, car arrester, ... iron phosphate battery : 18650 Battery Series