Features: Advanced Charging Technology:This 5V 2A single battery charging discharge module features efficient charging management with 2.4A±5% input current and 4.2V±1% cutoff voltages, ensuring fast and safe charging for portable devices. Comprehensive Safety Protections:Built in multiple protections including overcharge, over discharge, and short circuit prevention to safeguards your batteries and extend device use during frequent usage. Wide Compatibility:Supports various battery types with 5~5.5V input ranges and 2.95V discharge cutoff, making it ideal for electronics projects and small electronic product development. Compactly PCB Design:Constructed with quality PCB in Compactly dimensions, providing space saving solution for electronic devices without compromising durability. High Efficiency Performances:Delivers >90% boosting conversion efficiency with stable 5V~5.15V output at 2.4A, featuring low <200uA standby current for optimal energy saving operate. Specifications: Component: PCB Size: Approx.34x20mm/1.34x0.79in Input voltages ranges: 5~5.5V Type c Charging cutoff voltages: 4.2V±1% Charging current: 2.4A±5% (input) Discharge cutoff voltages: 2.95V Boosting output voltages: 5V~5.15V Boosting output current: 2.4A Boosting conversion efficiency: >90% (battery voltages 3.6V, load 0.5~2.4A) Package Includes: 1Pc 5V 2A chargers/discharger Module note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.