Type: Battery tester Model: TK15 Operating voltage range: DC8-120V Current: 50A Overall Size: 66x40x10mm Technical Parameters: Working power consumption: 8.0mA (Max:10.0mA) Standby power consumption: 0.5mA (Max:0.8mA) Sleep power consumption: 50uA (Max:60uA) Voltage acquisition accuracy: +/-1.0% Current acquisition accuracy: +/-1.0% Using ambient temperature rang: 0-35C Backlight on current: 40mA (Max:50mA) Backlight off current: 30mA (Max: 40mA) Battery capacity setting value: 0.-590Ah Built-in sampler working current: 5.0a (Max:10.0A instant) Attention:The min voltage of the battery pack should higher than the min working voltage of the coulometer Features: The empty and full voltage of battery can be adjusted The backlight automatic open when using Display: Residual capacity of battery (Ah or mAh) Capacity percentage and totem pole display Battery voltage Battery current Package Included: 1 x 50A Battery Tester 1 x Shielded Wire (1m)