Features • Accurate Voltage Measurement: Users can assess real-time voltage and battery capacity percentages, ensuring precise monitoring of battery performance • Enhanced Safety Features: Adjustable low voltage alarm with automatic shutdown minimizes consumption and protects against over-discharge, extending battery lifespan • Versatile Compatibility: Works seamlessly with lithium, acid, and lithium iron phosphate batteries, plus supports multiple batteries in series for diverse applications • Clear Digital Display: High brightness digital tube provides easy-to-read parameters, allowing users to quickly and intuitively check battery status • Broad Application Range: Ideal for use in automobiles, mobile equipment, ships, and outdoor gear, making it a valuable tool for various environments Features: 1、TRUE MEASUREMENT: Users can measure the corresponding parameters according to the actual situation, current voltage and battery capacity percentage. 2、SAFETY USE: With low voltage alarm, which is adjustable, could automatic shutdown, reduce consumption, with discharge protection, extends battery life. 3、WIDE COMPATIBILITY: Support lithium battery, acid battery, lithium iron phosphate battery, and can also be used for other types of batteries and power supplies, also support multiple batteries in series. 4、DIGITAL DISPLAY: Adopt high brightness digital tube display, the parameters can be viewed clearly and intuitively. 5、WIDE APPLICATION: This test module is widely used in automobile, mobile equipment, ships, outdoor equipment and other applications. Specification: Item Type: Battery True Capacity Module Material: ABS Model: XH M240 Display Accuracy: 0.1 Measurement Accuracy: 1 АН Power Supply Voltage: DC 5-12V, 2 x 18650 lithium battery (shipped without battery) Standby Current: 5-7mA Load Power: 10W 8Ω Installation Aperture: Approx. m/0.1in Package List: 1 x Battery True Capacity Module Note: Pay attention to safety. Package List 1 x Battery True Capacity Module