Imported 21700 battery cells

A 21700 battery is a high-capacity, rechargeable lithium-ion cell designed for superior energy efficiency and performance. With a standard size of 21mm in diameter and 70mm in length, these batteries were developed as a next-generation improvement over 18650 cells, offering increased power output, extended runtime, and higher energy density.

21700 batteries are larger and offer higher capacity than 18650 cells, which allows for fewer cells per pack and increased runtime in high-demand systems. Do 21700 battery cells require specific holders or enclosures? Yes. Due to their size, 21700 battery cells must be used with holders and hardware designed specifically for the 21mm x 70mm format.

The total planned scale of 21700 will reach 7GW. At present, it has formed supporting cooperative relations with China's mainstream new energy smart car companies, and continues to expand strategic customers, emerging Internet car companies, etc. Jiangsu Zhihang in Top 10 21700 battery manufacturers in China was established in July 2012.

Yes! 21700 Li-ion cells are used in custom pack builds due to their energy density and cylindrical factor, which supports modular configurations. 21700 battery cells offer greater energy density per unit, simplifying battery architecture and reducing pack size.

Engineers use 21700 cells in systems that require high-capacity output in a compact footprint. The extended runtime and consistent discharge make them ideal for commercial and industrial builds where performance and reliability matter. Some typical applications for these powerful batteries include:

To get more wholesale 21700 li-ion cells, just contact Sunpower New Energy. Sunpower New Energy manufactures high-quality lithium-ion 21700 batteries, with UL, CB, and UN38.3 certifications. MOQ=2.