8-Channel 18650 Battery Tester 2.4inch TFT Display Battery Capacity Testing with Multi-Mode Functionality Enhanced Safety, and Intuitive Displaying Name: Battery Tester  Material: plastics Working voltage: 5VDC, 10A (over-voltage necessarily burning machine) Powersupply interfaces: ①: Direct Current 5.5  t interface, ② 5V positive and negative electrode welding spots Reverse connection protective of powersupply: reverse connection is protected, and reverse connection of powersupply is prohibited Channel type: 8 independent channels, independent of each other and independent of each other Channel synchronization: support 8-channel setting synchronization and set parameters of each channel separately Charging current: each channel is independent of about 1A non-constant current charging, and the charging current is not adjustable. Charging (stop) voltage: 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V, 6 gears adjustable Recharge (stop) voltage: 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V, 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V, 13 gears adjustable Charging end current: 100mA, 200mA, 300mA, adjustable Discharge current: each channel is independent of about 1A non-constant current discharge, and the discharge current is not adjustable (Discharge) Stop voltage: 2.0V, 2.1V, 2.2V, 2.3V, 2.4V, 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V, 17 gears adjustable Standstill time: 1-5min adjustable Channel status preview: support 1-screen preview of 8-channel status Single channel detail display: support Single-channel charging and discharging curve display: support Internal resistance detection: two-wire method (direct current) for internal resistance measurement, only used for sorting and analogy of the same batch Heat dissipation mode: active heat dissipation Overheat protecting: support Cyclic charging and discharging: only one charging - discharging - charging cycle is supported in automatic mode, and multiple cycles are not supported. External test: it supports external discharge through 2P terminal. A single channel only supports one of the battery base or external test, and cannot use the battery base and external battery for test at the same time Reverse connection protective function of battery: reverse connection is protected, and reverse connection of battery is prohibited Item size: 310 * 112 * 38mm / 12.20 * 4.41 * 1.50in Item weight: 397g / 0.88lb Package size: 335 * 115 * 60mm / 13.19 * 4.53 * 2.36in Package weight: 508g / 1.12lb