Features Durable and conductive: excellent electronic components are used, which are robust and durable, with good conductivity and long service life TEST PARAMETER: this battery capacity tester is used to test the voltage, discharge capacity and discharge energy of 18650 lithium batteries Accurate and intelligent: intelligent chip control, accurate measurement, support parameter memory function, easy to check next time Clear display: the liquid crystal display is clear and can show the discharge capacity and discharge energy Efficient and time-saving: double power supply, high work efficiency, time saving Specification: Item type: lithium battery capacity tester. Product model: XH M239. Supply voltage: DC5-12V lithium battery 18650 (not included). Measuring accuracy: 1 mAh. Standby current: 5 mA. Discharge current: over 500 mA. Load power: 10W 8Ω. Application: lithium battery 18650 Package list: 1 x lithium battery capacity tester Package List 1 x Lithium Battery Capacity Tester