21700 Batteries | High-Performance Lithium-Ion Cells
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Shop premium 21700 batteries at IMR Batteries. These lithium-ion cells measure 21mm in diameter and 70mm in length, offering increased capacity and energy density compared to 18650 batteries. Ideal for high-drain devices like flashlights, power tools, and electric vehicles, 21700 batteries deliver reliable, long-lasting power. Choose from high-capacity options and various discharge rates to meet your needs. Browse our collection of authentic, top-tier 21700 batteries today!
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![Nitecore NL2145 21700 4500mAh Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2145_bdc687c9-c03c-4da7-8829-f1d789cc13df.jpg?v=1730736560&width=1999)
![Nitecore NL2145 21700 4500mAh Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2145_2.jpg?v=1730736563&width=1999)
Nitecore NL2145 21700 4500mAh Battery - Protected Button Top
Sale price$11.99
Regular price$21.95
In stockSave $4.00
![Nitecore NL2140R 21700 4000mAh USB-C Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2140R_465dee2d-c24c-4dad-a219-d36b57f1a6b1.jpg?v=1724788047&width=1999)
![Nitecore NL2140R 21700 4000mAh USB-C Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2140R_2.jpg?v=1724788050&width=1999)
Nitecore NL2140R 21700 4000mAh USB-C Battery - Protected Button Top
Sale price$12.95
Regular price$16.95
Sold outSave $12.00
![Nitecore NL2145HP 21700 4500mAh 15A Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2145HP_b0cfbcd5-1784-4d2c-9039-a26ef4f4b0bf.jpg?v=1730736575&width=1999)
![Nitecore NL2145HP 21700 4500mAh 15A Battery - Protected Button Top](http://imrbatteries.com/cdn/shop/files/NITE-NL2145HP_2.jpg?v=1730736577&width=1999)
Nitecore NL2145HP 21700 4500mAh 15A Battery - Protected Button Top
Sale price$11.99
Regular price$23.99
In stock
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