- Ready to use with a terminal block; no welding necessary. - Compatible with a wide range of battery sizes, including large batteries and small button cells. Supported models include 21700, 26650, 18650, AA, AAA, and more. - Effortlessly monitor discharge aging with a professional four-wire output system that eliminates voltage drop. This ensures accurate readings and reliable performance. - The four-wire system simplifies the connection process for larger 18650 batteries, making it ideal for both hobbyists and professionals. Use Cases: 1. Perfect for DIY battery projects, allowing you to quickly assemble and test battery packs without specialized tools. 2. Ideal for electronic enthusiasts needing precise voltage readings for their circuits, ensuring optimal performance and longevity. 3. Suitable for battery maintenance and monitoring in renewable energy systems, helping you maintain efficiency and reliability. This product stands out due to its ease of use, compatibility with multiple battery types, and advanced monitoring capabilities, making it an essential tool for anyone working with batteries.