Features: The Charging Module is solution for charging 18650 lithiums batteries, featuring integrated battery protective circuit to ensures safe and efficient power management. This module boasts USB interfaces for easy connection, with maximums charge current of 1000mA and over discharge protective, making it accessory for electronics projects. Designs for electronics enthusiasts, hobbyists, and anyone need power management, this module provide with its safety features. For use in bank, customes battery packs, and electric tool, the Charging Module ensures your devices with stable power supply. With this charging board is easy to installion and integrates seamlessly into various applications, offering practical solution for maintaining battery health. Specifications: Component: Circuit Board Color: As Picture Show Size: 2.6x1.8cm/1.02x0.71inch Package Includes: 10pcs Charging Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.