Features: It is a module for DIY to make lithium battery detection capacitor, which needs external power supply DC5-12V. The module has its own discharge load 10W 8 resistance. The minimum discharge stop voltage of lithium battery is generally 2.75V. When the voltage drops to 0.875 times the rated voltage (3.24V), it should be charged Charging voltage is generally 4.2V-4.35V. Microcomputer control, the measurement is accurate, and the discharge voltage can be set. Specifications: Material: PCB Display Accuracy: 0.1 Measurement Accuracy: 1mAh Power Supply Voltage: DC5-12V/18650 battery power supply Standby Current: 5-7mA Discharge Current: 500mA Load Power: 10W, 8 Installation Dimension: 72*53 Installation Hole Diameter: 3mm Item Size: 110 * 80 * 25mm / 4.33 * 3.15 * 0.98in Item Weight: 59g / 2.11oz Package Weight: 63g / 2.24oz Package Size: 14 * 12.5 * 3cm / 5.51 * 4.92 * 1.18in Packing List: 1 * Module