Bigger Cells That Can Hold More Chemistry
21700 Batteries are slightly bigger than regular 18650 cells and are capable of holding more chemistry internally. The increased amount of chemistry within the cell allows for higher discharge rates and more voltage capabilities. This unique sized battery mixed with the typical high-discharge rates makes these batteries the ideal choice for vape pens, e-cigarettes, power-tools, medical devices, battery packs, and much more! Don't let your electronic devices go without power again. Additionally, most of these batteries are rechargeable which can help save you money. Instead of constantly buying new batteries to replace the originals, just recharge the ones you already have - it is better for the environment and for your wallet!