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EF420 · 1 finishes
EF420 Vertex 1100mAh Vape Pen
The EF420 Vertex is a slim 1100mAh 510-thread battery for concentrate and oil cartridges. Adjustable voltage plus a preheat setting let you dial in each hit, and it recharges over USB. Hardware only — no nicotine, no cannabis included.
Price
$19.99
Selected option
Silver
Slim 1100mAh 510-thread battery — plenty of charge for a device this size.
Adjustable voltage and a preheat setting let you tune each hit.
Rechargeable over USB; kit includes the battery and a USB charger.
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$19.99Quantity 1
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Product details
Specs
The format, capacity, power, and compatibility behind EF420 Vertex 1100mAh Vape Pen — before you choose your option.
Format
510-thread vape pen battery
Works with
510-thread concentrate and oil cartridges
Battery
1100mAh rechargeable
Settings
Adjustable voltage + preheat
Charging
USB
Material
Metal
In the box
1100mAh Vertex battery, USB charger
Nicotine
None
Product notes
Notes, shipping, returns
EF420 Vertex 1100mAh Vape Pen
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3 FINISHESCompatibility
- 510 thread — electrically, any standard 510 concentrate or oil cartridge fits.
- Adjustable voltage plus a preheat setting; recharges over USB.
- Ships with the 1100mAh Vertex battery and a USB charger.
- Contains no nicotine, no e-liquid, and no cannabis. You supply your own cartridge.
Questions
About this product
Does this contain nicotine or cannabis?
Neither. It's a battery — a 1100mAh power supply with a 510 thread. Whatever the cartridge holds is a separate purchase, and not one you can make here.
What voltage should I use?
Start low and step up only if the draw is too small. A burnt or harsh taste means you're running hotter than that coil wants; step down rather than push through.
What is preheat for?
Warming thick or cold oil that won't draw properly — a low-power pulse you trigger without pulling on it. It's a fix for a symptom, not a normal step; if the draw is fine, it just spends battery.
Will my cartridge fit?
Electrically, yes — that's what a 510 thread guarantees. Whether a very wide cartridge looks oversized on a slim pen body is a separate, physical question.
Before you buy
Guides that cover this product
Hardware guide
510 thread batteries and voltage settings
What 510 thread means, what the voltage settings on a variable battery actually change, when to use preheat, and how cartridge sizes affect fit.
Read guide5 min
Buying guide
Cartridge, disposable, or flower: picking a THCA format
Four THCA formats, four different things to own. What each one needs from you, what it costs per gram, and which one suits how you actually buy.
Read guide8 min