FEB 21700 Batteries

About

FEB 21700 batteries are lithium-ion cells from Jiangxi Far East LIB Co., Ltd., an established cylindrical cell manufacturer. FEB cells are built for practical pack-building work — the 21700 format gives more capacity and energy headroom than the 18650 in the same familiar cylindrical shape, making it a solid foundation for modern battery packs. As an established manufacturer's line, FEB's appeal is straightforward: consistent, usable cells for builders who want dependable performance and value. The 21700 range suits a wide span of builds, from runtime-focused energy storage to higher-output pack assembly, giving builders flexibility in how they configure capacity and current. Key features Cells from Jiangxi Far East LIB, an established manufacturer 21700 format — more capacity and energy than 18650 Dependable, value-oriented cells for pack building Suited to a wide range of build configurations Common applications E-bike and light mobility battery packs Energy storage and portable power builds Custom and DIY 21700 pack assembly General-purpose pack-building applications