Features: Precise 18650 battery capacity test module, the error is less than 1%, ensuring the reliability of each measurement result. With intelligent discharge control system, support up to 10A discharge current, effectively prevent over-discharge damage to the battery. Compatibles a variety of specifications of batteries, not limited to 18650 models, easy to adapt to different project requirements. Equipped with a highly definitions LCD display, real-time display of voltages, current, capacity and other key data, which is convenient for users to get information quickly Precise measurement: the module adopts advancedly power testing technology, which is able to accurately measure the capacity, voltages and discharge characteristics of the battery. Specifications: Size:about 10.8x8.5x2.8cm/4.25x3.34x1.1in Working voltages: DC5V Detection voltages: <DC5V Capacity metering ranging: 0~99999mAh Energy measurement ranging: 0~99999mWh Discharge load: 10W8QJ cement resistorsx2L1D Discharge current selection: about 0.5A or 1.0A Charging interface: type c External discharge interface: type c Presets discharge stop voltages: 3.30V (not adjustable) Presets full stop voltages: 4.2V (not adjustable) Technical parameters: Support 3.7V battery | test current 2A | Accuracy ±1% Use scenario: Electronic product repair | Laboratory research | battery pack testing Package Includes: 1pc 18650 battery capacity test module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.