High-performance SDI 10C 45A INR21700 40T lithium-ion battery with 4000mAh capacity and 3.6V output, designed for high-drain devices.

Premium Samsung SDI cells ensure stable power delivery and extended cycle life, ideal for power tools, electric vehicles, and energy storage systems.

Advanced safety features include overcharge protection and thermal stability, making it reliable for industrial and consumer applications.

Ultra-low internal resistance maximizes efficiency, suitable for high-demand scenarios like vaping mods and portable medical devices.

Globally sourced at wholesale prices, offering unmatched value for bulk buyers needing dependable, high-capacity rechargeable batteries.