Description This versatile charging module is designed to meet a wide range of battery charging needs with multiple options for users to choose from. Built for high performance and reliability, it features battery over-voltage protection to ensure safe and stable charging. With an easy-to-understand interface and simple operation, it is suitable for both beginners and experienced DIY users.The module supports DC 3–6V input voltage (recommended 3.7V–5V) and 2A–4A input current, making it compatible with various power sources. It provides a 12.6V charging voltage and 0.84A charging current (2A version). The red variant includes convenient terminals for easier connectivity, while the green and black versions come without terminals.Perfect for DIY battery packs, power banks, electronics projects, and lithium battery charging applications.