A 21700 battery is a type of lithium-ion rechargeable battery. The numbers "21700" refer to the battery's dimensions: it is 21mm in diameter and 70mm in length. 21700 batteries are commonly used in high-performance applications such as electric vehicles, power tools, and high-powered flashlights. They offer a higher capacity than 18650 batteries and are known for their high energy density, long lifespan, and relatively low self-discharge rate. They are becoming more popular in recent years, and many electronic devices that used to use 18650 batteries are now transitioning to use 21700 batteries.
Epoch Batteries Epoch 21700 5000mAh 10A - Button Top Battery (50G)
Regular price$12.99 Sale price$8.25In stock
Samsung Epoch Batteries 3.6V 1P1S 5000mAh 5A Battery Pack - PCB and 6" Leads
Sale price$12.99In stock
Samsung Samsung 30T (3) 21700 3000mAh 35A Battery
Regular price$7.99 Sale price$4.99Out Of Stock