EBC-A20 is a battery tester with recharge and discharge function, it can be used to test the capacity of lithium battery and leadacid battery (5A recharging, 20A discharge, the maximum power is 85W), support separate recharge and discharge and recharge-discharge-recharge test. It can be connected to the computers, can recharge and discharge repeatedly.Wiring : four-wire detection, voltage measurement and current channel separate wiring to Measurement accuracyLCD display: test data of voltage, current, capacity, time, power, energy, etc.Computer connection: dedicated USB to TTL serial cable.Computer control, drawing curves, calibrating measurement benchmarks, upgrading device firmware, Cycle charging and discharging, etc.Parameter:Power supply mode:DC 19V-24V, current 3.5A or moreVoltage setting:0.00-30.00V, minimum step 0.01V(maximum voltage during charging is 18V)Current setting:Discharge:0.10-20.00A, minimum step 0.01A (automatic current limit when power exceeds limit)Charging:0.10-5.00A, minimum step 0.01A (maximum current limited by supply current)Discharge mode:-CC:constant discharge current, used to test battery capacity-CP:constant discharge power, used to constant power equipment-CV:constant current and constant voltage charging, supporting lithium battery and lead acidAutomatic charge and discharge: support automatic "charge-discharge-charge" mode, test battery capacityVoltage measurement:0.000-4.500V (low pressure), accurate to 0.003V, error +-0.5%4.50V-30.00V (high pressure), accurate to 0.01V, error +-0.5%Current measurement:0.10-20.00A, accurate to 0.01A, error +-0.5%Capacity measurement:Within 10Ah, resolution 0.001Ah10Ah-100Ah, resolution 0.01AhAbove 100Ah, resolution 0.1AhPlug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on.Voltage:AC100-240VColour:Silver-GrayMaterial:MetalSize:15x12x12cmPackage Contents:1 * host2 * test clamp cables1 * USB to TTL serial port cable1 * power cord1 * 19V 4A power adapterOnly 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.