Description: TK15 is a kind of high precision current type battery capacity tester(also known as coulometer). It can test the voltage，current and capacity of battery to help users know the state of battery in time.  TK15 has memory function.  It is suitable for mobile and portable equipment、e-bike、balance car、cleaning machine、instrument、ups and so on. Low power consumption, automatic wake-up. Fast response rate. Specifications: Item name: TK15 Battery Capacity Tester Indicator  DIY Supplies: ELECTRICAL Model Number: TK15 Color: Black Type: Vehicle Battery Tester Working voltage: 8-120V Working dissipation: 10.0mA Standby dissipation: 50uA Voltage accuracy: ±1.0% Current accuracy: ±1.0% Capacity accuracy: ±1.0% Backlight on current(50A): 30-60mA Backlight on current(>50A): 80-120mA Preset capacity value: 0.1~9999.0Ah Current of 50A sampler: 50.0-75.0A Current of 100A sampler: 100.0-150.0A Current of 350A sampler: 350.0-500.0A Temperature range: 0~35℃ Current: 50A/100A/350A Working power consumption: 8.0mA (Max:10.0mA) Standby power consumption: 0.5mA (Max:0.8mA) Sleep power consumption: 50uA (Max:60uA) Backlight on current: 40mA (Max:50mA) Backlight off current: 30mA (Max: 40mA) Battery capacity setting value: 0.-590A External normal sampler working current: 30.0A (Max:50A) External big sampler working current: 50.0A (Max:100A) Note: - There might be little error of size for manual measurement. - The colors' deviation might differ due to different monitor settings, please kindly understand.