Power supply requirement : DC12V voltage ( actual voltage 11-14V) current is not less than 0.5A of power, or the power will be displayed inappropriate Err6. Note: The default power adapter is not included. Operating modes: single mode constant current (CC) Discharge current : 0.20-9.99A stepper 0.1A or0.01A Discharge current maximum error : 0.7% -0.01A The maximum capacity test error : 0.5A 2.5%, 2A 1.5%, 5A and above 1.2% Offline ( termination ) Voltage Range : 1.0-25.0V stepping 1V or 0.1V Discharge voltage : 1.00-30.00V The maximum voltage measurement error : 1% + - 0.02V Maximum power : 60W super power automatically limits the maximum current (for example, up to 60W when it can open 9.99A 6V and 20V maximum at the only open 3.00A) Highest battery test statistic : 999.9Ah or 9999Wh, achieve value stop testing ( first value to those who stop condition ) Board size : 60W 100mm x 70mm x 57mm ( fan prominent board about 12mm) Positioning hole locations : 60mm x 88mm diameter 3.2mm 5mm pedestal already installed. Fan control : intelligent fan control ( according to the radiator fan can be infinitely variable automatic temperature ) Protection: Overheat protection "otP"; transient overpower protection "oPP"; overpressure protection "ouP"; reverse polarity protection; power supply voltage abnormal protection. Colour:green Material:PCB+electronic components Size:120 x 70 x 57mm Package Contents: 1 x battery capacity tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.