20700/21700 Batteries

Discover 21700 batteries from reputable manufacturers like Molicel, Samsung, LG and Sony at Nu Battery. 

Our commitment to quality is reflected in our authenticated and batch-tested products, ensuring that customers can make their purchase with complete confidence.

21700 batteries are lithium-ion cells measuring 21mm in diameter and 70mm in length (protected batteries are around 5 mm longer) and have a nominal voltage of 3.7V. Capacity ranges from 3000 to 5000 milliampere/hour (mAh). 

Available in Flat-Top, Button-Top, Protected and Tab configurations, (read more about these here) these batteries are fully rechargeable, providing users with a sustainable power solution. 

Unsure about the specific 21700 battery that suits your needs? Our team of experts is ready to assist you; don't hesitate to reach out for personalised guidance. 

Trust Nu Battery for reliable, high-quality battery solutions.

13  Products