18650 Lithium Battery Capacity Tester Module High Precision XH-M239 LCD Digital Display True Capacity Module MaH/mwH Measurement                   Product selling points:    1: Widely used    2: Compact appearance    3: Easy to use and understand    4: Measurement accuracy: 1mah    5: Intelligent chip control, clear LCD display, accurate measurement                Features:    Product Name: 18650 lithium battery capacity tester    Product model: xh-m239    Display accuracy: 0.1    Measurement accuracy: 1mah    Power supply voltage: dc5-12v / 18650 battery (delivered without battery)    Standby current: 5mA    Discharge current: About 500mA    Load power: 10W 8 Ω    Appearance dimension: 111 * 97 * 25MM    Product weight: 93g