FEB 21700
Grade A
6000mah OEM/ODM
3.7v ,customized
~71.3g
≥80% capacity after 500 times
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The FEB 21700 5500mAh is a high-capacity cylindrical lithium-ion battery designed for high-performance energy storage and power applications. This cell combines high energy density (19.95Wh at 0.2C discharge) with robust performance, validated through comprehensive testing.
Conquering subzero challenges, our NCM pouch cell achieves 85% capacity at -30°C using a lithium-rich cathode and ether-based electrolyte. The 12Ah cell (120x70x3mm) delivers 3.6V nominal voltage and 150Wh/kg energy density, with a flexible laminate casing that resists brittleness at -40°C. A built-in 50W foil heater enables cold cranking in 5 seconds at -35°C, meeting MIL-STD-810G for Arctic operations.
Dongguan Misen Power Technology Co., Ltd. possesses advanced equipment, scientific management techniques, and excellent quality control. We focus on 18650, 21700, 32650, polymer, large single-cell power batteries, energy storage batteries, outdoor power supplies, emergency power supplies, lithium battery packs, and more.And the recycling and preparation of new energy vehicle battery modules, and provide OEM&ODM service.
These products are widely used in electric surfboards, electric bicycles, home energy storage, RV energy, marine energy, UPS systems, tower stations, and solar energy storage systems.
We specialize in this field for many years with advanced equipment,scientific management techniques,and excellent quality control which earn us customers all over the world.
Our factory has been evaluated, certified, and inspected by SGS Group. We aim to be a reliable battery supplier for long-term business relationships. All our batteries have passed international certifications, including UL, CE, ROHS, CB, UN38.3, MSDS, IEC, ISO9001 and others.
