Without professional connection, easy to use, what you need just plug in the USB port, charge and discharge it can monitor the working current voltage of the equipment, and statistics battery capacity.
Can check the charging current of your digital device.
Can detect the discharge capacity of the charging treasure and calculate the conversion rate of the charging treasure.
Can detect, the charge capacity of tablet, cell phone battery, judge battery performance drops how much, whether need to change.
LED displays Current (Amps), voltage and capacity (19,999 mah)