Price Match Guarantee
Find a lower price? We'll match it, no questions asked!
21700 3000MAH 3.7V BATTERY
Ordered
Order Ready
-
Delivered
-
Order in the next and receive your order between and
21700 3000mAh 3.7V Battery
A 3.7V 21700 lithium-ion cell rated at 3000mAh. The 21700 format is physically larger than the 18650 it replaced in many modern mods, and that extra size translates directly into longer runtime and better current handling at higher wattages.
Supplied as a bare cell for use in external chargers and 21700-compatible regulated devices. If your mod shipped with a 21700 adapter sleeve, keep it — it lets the same device run 18650s as a backup.
Features
- 3000mAh capacity in the larger 21700 format
- 3.7V nominal output
- Rechargeable lithium-ion cell
- Suited to higher-wattage devices
- Sold as a bare cell for external charging
Battery Safety — Please Read
- Charge only in a dedicated Li-ion charger, and never unattended.
- Transport cells in a plastic battery case, never loose in a pocket.
- Check the wrap before every use — replace or retire any cell with damaged wrapping.
- In dual-cell mods use a matched pair of the same brand, model and age, charged together.
- Keep your build within the cell's rated continuous discharge current.
- Retire cells that are swollen, damaged, or run unusually hot.
FAQs
Q: Can I use a 21700 in an 18650 mod?
A: No — a 21700 is both longer and wider. Some mods accept 21700s with 18650s via an adapter, but never the other way round.
Q: Is a 21700 better than an 18650?
A: For high-wattage vaping, generally yes. It typically holds more charge and handles current better, at the cost of a bulkier device.
Q: Does it come charged?
A: Cells ship at a partial storage charge. Charge fully in an external charger before first use.
