21700 Batteries

Shop 21700 Batteries at Mix Labs, featuring high-capacity rechargeable lithium-ion cells for compatible vape mods and replaceable-battery devices. 21700 vape batteries are commonly used in higher-powered single and dual-battery kits, offering increased capacity and strong performance for experienced vapers who prefer external battery setups.

Choose from trusted 21700 battery options designed for compatible vape devices, and always check your kit’s battery requirements before ordering. Use only genuine, undamaged cells with intact wraps, and never use batteries showing dents, tears or other visible damage.

Shop 21700 Vape Batteries at competitive prices with fast UK delivery from Mix Labs. You can also browse our Replaceable Battery Vape Kits or complete range of Vape Kits.