Features: This 5V Battery Charging Board offers reliabled and efficient charging with precise 1.5% ,ensuring your 18650 batteries always ready to use . Featuring Microed USB input, this module supports multiple interfaces and provides real time charging status with double LED indicators, for various power sources. For DIY enthusiasts and electronics hobbyists, this Charging module is perfectly for anyone to build or maintain their own battery powering projects. For home, workshop, this charging boards adaptability and efficiency for all environment. With adjustable current setting and high conversion efficiency, this Charging module not only minimizes energy loss but also ensures your devices safely and effectively charging. Specifications: Item： TP4056 Battery Charging Board Support 4.5V-5.5V 1A inputs Input :Microed USB/Mic Usb Charging Precise 1.5% Note: Not Support reversed Size：about 25x19x10mm/0.98x0.75x0.39in Package Includes: 1PC Battery Charging Board note: Due to the problem of lighting there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.