21+ · Hardware

Penjamin Cart Pen: The Battery Hiding in Plain Sight

A 510-thread vape battery that looks — and writes — like an ordinary ballpoint pen. The cart hides inside the barrel. The clip is the fire button.

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Quick answerA Penjamin is a 510-thread vape battery built to look and work like a ballpoint pen. The cartridge sits hidden inside, and you squeeze the clip to fire it.

What does “Penjamin” mean?

Penjamin is slang for a vape pen — “pen” mashed with “Benjamin,” as in Benjamin Franklin on the $100 bill.

The story starts with one line on X in September 2019: someone joked about hitting “the penjamin franklin” and not being able to stop raiding the fridge. The name stuck. It landed in Urban Dictionary in 2021, and TikTok turned it into a full-blown meme by 2023.

Then the hardware caught up with the joke. Smyle Labs built a battery that actually is a pen — so now “Penjamin” means both the slang and the device.

Meet the Penjamin Cart Pen

Picture a boring office pen. Twist the tip: it writes. Open the other end: there’s a 510 cart tucked inside. Squeeze the clip: it fires. Nobody at the table blinks.

510-threadFits most standard carts, with a metal adapter for small ones.
3 voltage levels2.7V green · 3.1V blue · 3.6V red.
Preheat modeWarms thick oil before you draw.
Real ballpointWrites on the opposite end. Fully functional.

Heads-up: oversized or extra-wide carts may not fit the concealed chamber. Standard 0.5g–1g carts are the sweet spot. Big 2g carts? See Cart vs Yart.

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How to use a Penjamin Cart Pen

ActionHow
Power on/offPress the clip 5 times fast
Change voltagePress the clip 3 times
PreheatPress the clip 2 times fast
Take a drawHold the clip while inhaling

Tip: start on green (2.7V). Move up only if the draw feels weak. Lower heat means smoother flavor and longer cart life. Not hitting? Run through our charging & troubleshooting guide.

Why buyers pick the Penjamin

  • Discretion: it’s a pen. That’s the whole pitch.
  • Flexibility: any standard 510 cart, three heat levels.
  • Price: budget-friendly next to premium 510 batteries.
  • Conversation piece: the meme came first — owning the real thing is the punchline.
Add a Penjamin to your cartGrab a spare charger

Penjamin FAQ

What is a Penjamin?

A 510-thread vape battery shaped like a working ballpoint pen, made by Smyle Labs. The name comes from slang for a vape pen.

What does Penjamin mean?

“Pen” + “Benjamin” (slang for a $100 bill). It started as internet slang in 2019 and went viral on TikTok in 2023.

Is the Penjamin a real pen?

Yes. One end writes like a ballpoint; the other end holds a 510 cart.

What carts fit a Penjamin?

Most standard 510-thread carts. Use the included adapter for small carts. Very wide or oversized carts may not fit the hidden chamber.

How do I charge a Penjamin?

Plug it in with the included cable (check your model’s port — many units use Micro-USB) and unplug once the light shows full.

Why isn’t my Penjamin hitting?

Make sure it’s on (5 clicks), the cart is snug, and the contacts are clean. Try preheat (2 clicks) or a higher voltage.

More hardware guides

Shop hardware: 510 Batteries · Cart Batteries · Chargers · 510 Cartridges · G Pen · iKrusher · Smyle Labs · Penjamin · Dry Herb Vapes · Concentrate Vapes · Vape Pen Accessories

Brands: iKrusher brand guide · Smyle Labs brand page

For adults 21+ only. Hardware sold empty — cartridges not included.

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Questions before you order? See our FAQs and shipping information.