Joinsun 21700 Series Cells offer a range of models, including the 21700-40P, 21700-40E, 21700-45E, and 21700-45D. Each model showcases remarkable capacity, with the numerical values such as “40” and “45” denoting the cell’s milliampere-hour (mAh) rating. For instance, the 21700-40P provides a capacity of 4000mAh, while the 21700-45D delivers an even higher capacity of 4500mAh. These cells are meticulously engineered to deliver superior performance, reliability, and longevity. In addition, both Joinsun and Redway are part of the Redway Power Group, which focuses on battery cells and battery packs/energy storage systems separately.
Joinsun 21700 Series Cells Specifications: