Features 1、This product is a battery tester with charging and discharging function, suitable for the capacity test of lithium battery and lead‑acid. 2、Charge 5A, discharge 20A, maximum power 85W, support single charge, discharge and one‑time charge‑discharge test. 3、Support to connect to the computer, through the online software can be recharged and discharged multiple times, with more extended functions. 4、LCD display voltage, current, capacity, time, power, energy and other test data, which is widely used for computer. 5、Four‑wire detection, voltage measurement and current channel are connected separately to ensure measurement accuracy. Specification Item Type: Battery Capacity Tester Material: Cold rolled steel Power Supply Mode: DC 19V-20V, current above 3.5A Current Setting: Discharge 0.10-20.00A, the minimum step is 0.01A (the current is automatically limited when the power exceeds the limit); charge 0.10-5.00A, the minimum step is 0.01A (the maximum current above 10V is less than the power supply current) DSC-CC (Constant Current Discharge): Constant discharge current, used to test battery capacity DSC-CP (Constant Power): Constant discharge power, used to simulate constant power equipment Automatic Charge and Discharge: Support automatic "charge-discharge-charge" mode to test battery capacity Current Measurement: 0.10-20.00A, accurate to 0.01A, error ±0.5% Capacity Measurement: Within 10Ah, resolution 0.001Ah; 10Ah-100Ah, resolution 0.01Ah; above 100Ah, resolution 0.1Ah Computer Connection: Dedicated USB to TTL serial cable (MiniUSB port, not an ordinary USB cable), computer control, curve drawing, calibration of measurement benchmarks, device firmware upgrade, cycle charging and discharging, etc. Package List 1 x Detector 2 x Test Line 1 x Manual