Battery Capacity Tester Module 4 Channel High Accuracy Digital Battery Power Internal Resistance Detector Module Item Type: 18650 Lithium Battery Capacity Tester Material: PCB Applicable Battery: Meet the stop discharge voltage 2.5-3.5V, 4.2V charging batteries are applicable Power Supply Interface: Dual Type C Interface, Power Supply Cable (C Port Cell Phone Cable) System Language: English Test Quantity: 4 Channel Charging and Discharging Measurement Internal Resistance Measurement: Support, Using DC two wire method to test the internal resistance. Charging Function: Support, Full Automatic Cut Off Charging, Not Applicable to Li FePO4 Battery Charging. Discharge Function: Support, Automatically stop when conditions are reached. Automatic Charging And Discharging: Support, The battery is fully charged at the end of the automatic mode, not applicable to the charging of lithium iron phosphate batteries. Cycle Charging And Discharging: Support, 1-9 Cycles Adjustable. Status Alert: Support Stop Discharge Voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, Total 11 Adjustable Steps Discharge Current: Maximum about 1A current, can not be adjusted, does not support independent transformation Heat Dissipation: Mode: Active Heat Dissipation High Temperature Protection: Support Charging Voltage: Professional Battery Charging Chip Control, Maximum About 1A Charging, Full Voltage 4.2V Power Failure Save: Only save the setup parameters, do not save the measurement data