All vapes need batteries to function and we have a number of great vape pen battery options for your customers. Not all batteries are created equal and vapers need high quality options if they want to enjoy their vaporizers all day without the need for replacements and recharging. We carry a number of vape mod battery sizes including 18650 batteries, 20700 batteries, and 21700 batteries. You can also buy cartridge battery pens for use with 510 threaded cartridges, a must have for every vape shop.