... to computers.RFNT4:with Voltage,Current, Capacity,Resistance ,power output testing, charge and discharge functionItem SPEC.:• Place ... test all kind of rechangeable batteries ,like power bank ,laptop batteries,DV,DC batteries,AAA batteries• Color: WhiteDescription:testerbattery detectorlaptop ... Maximum charging current of each channel: 2.5A • Standby power consumption: ≤1W• Working temperature: 0°C~40°C ...