Efest 21700 2100mAh 35A Vape Battery is a larger-format lithium cell in 21700 size, rated at 2100mAh with 35A discharge. The 21700 format holds more energy than 18650 in compatible mods. It suits owners of 21700-compatible devices wanting extended runtime at high drain.
You can start using this Efest 21700 vape battery within a minute of unboxing. E-Cig Dubai ships this Efest 21700 vape battery across the emirates with cash on delivery for adults aged 18 and over.
| 21700 Size | 2100mAh Capacity | 35A Drain | Efest Brand |
What is a 21700 vape battery?
A 21700 is a larger lithium cell than the common 18650, used by mods designed for the bigger size. This Efest 21700 is rated 2100mAh with 35A discharge. E-Cig Dubai delivers it across the UAE.
Size matters here: 21700 cells do not fit 18650-only mods, and adapters are not recommended for high-drain use. Find matching Efest accessories in our vape shop. New Efest arrivals land in the collection as soon as they clear quality checks.
21700 or 18650: which should I buy?
Buy the size your device was designed for; the manual states it clearly. Where a mod accepts both, 21700 usually gives longer runtime thanks to its larger capacity.
Never force a battery into a compartment it does not fit. A tight or loose fit is a safety warning sign.
Comparing options? See the Best Efest 18650 3000mah Vape Battery 35A, the Buy AWT 18650 3500mAh or the Efest Battery Charger Lush Q4. Our buying guide reviews Efest 21700 vape battery pros and cons. Spending a minute on Efest comparisons usually leads to a better first purchase.
Efest 21700 specifications
| Brand | Efest |
|---|---|
| Size | 21700 |
| Capacity | 2100mAh |
| Max discharge | 35A |
| Use | 21700-compatible mods |
Browse related ranges: Pod Systems, E Liquids Uae and Nicotine Pouches.
Do I need a special charger for 21700?
Most modern multi-bay chargers accept 21700 cells, but check your charger’s size compatibility first. Older 18650-only chargers may not fit the longer cell.
Heads up: Label 21700 cells clearly if you also own 18650s. Mixing sizes in the same case invites dangerous mix-ups.
Our 21700 vape battery guide keeps Efest advice short, clear and actionable.
Where to buy 21700 batteries in the UAE?
E-Cig Dubai stocks the Efest 21700 with cash on delivery across the emirates. Verify your mod takes 21700 before ordering.
Vozol Disposable, Waka Disposable and Nerd Disposable are all stocked as 100% original, like this Efest 21700 vape battery.
Efest 21700 FAQs
Will it fit my 18650 mod?
No. Use only the battery size your device specifies.
Is 2100mAh enough?
For high-drain 21700 use it is a solid balance of capacity and current delivery.
How do I transport it safely?
In a dedicated battery case, never loose with metal objects.
How do I dispose of old batteries?
Tape the terminals and take them to a battery recycling point. Never bin lithium cells.
Note: Vaping products are for adults aged 18 and over only. Keep out of reach of children and pets. Not for non-smokers, pregnant or breastfeeding women.
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