{"id":843,"date":"2025-06-05T22:09:13","date_gmt":"2025-06-05T19:09:13","guid":{"rendered":"https:\/\/ft.systems\/product\/lithium-ion-nr21700-5000\/"},"modified":"2026-09-28T14:57:07","modified_gmt":"2026-09-28T11:57:07","slug":"lithium-ion-battery-inr-21700-5000-mah","status":"publish","type":"product","link":"https:\/\/ft.systems\/en\/lithium-ion-battery-inr-21700-5000-mah\/","title":{"rendered":"FT Lithium-ion Battery INR 21700 5000mAh 180A"},"content":{"rendered":"

The INR 21700 5000mAh<\/strong> Li-ion battery is a 21700 format cell designed for building high-power battery packs (for FPV drones, Unmanned Ground Vehicles, and portable charging stations).<\/p>\n

The 21700<\/strong> format denotes a diameter of 21.2 mm and a length of 70 mm. Compared to the previous generation 18650 cells, the 21700 battery offers up to 50% more internal volume.<\/p>\n

The INR abbreviation stands for modern Lithium Nickel Manganese Cobalt (NMC) chemistry, allowing the cell to consistently deliver high currents without severe overheating while maintaining maximum capacity.<\/p>\n

The combination of a high discharge rate (125A<\/strong> continuous, 180A<\/strong> burst) and a true capacity of 5000mAh sets this cell apart from most alternatives on the market. It ensures stable operation under extreme loads and significantly extends flight range.<\/p>\n

21700 Li-ion cells are used in battery packs for 7\u201310+ inch FPV drones, fixed-wing UAVs, UGVs, as well as portable charging stations and heavy-duty power banks.<\/p>\n

The low internal resistance of this high-discharge 21700 cell prevents severe voltage sag under load, while the thermal stability of its chemistry minimizes heat generation and degradation during prolonged high-current operation.<\/p>\n

Key Advantages:<\/b><\/p>\n