The 5V Step-Up Power Module is a compact, versatile board designed for DIY enthusiasts aiming to build or upgrade USB-powered devices. It integrates lithium battery charging and protection, efficiently managing power from a lithium battery to output a stable 5V via its USB port. This functionality is crucial for homemade power banks, electronic projects, or any application requiring a portable 5V power supply. The board ensures safe operation through built-in protection against overcharge, over-discharge, and short circuits, thus prolonging the battery's lifespan and safeguarding connected devices. Its ease of use, combined with protective features, makes it an excellent choice for powering or charging USB devices in DIY projects.