Smyle Labs · 510 battery (lip balm shape)
Smyle Labs Lip Balm Cart Pen
A button-free 510 cart battery in the shape of a lip balm tube.
$18.99In stock
Buy now: pick one
Ships the same day on weekday orders placed by 2 PM Pacific. Free US shipping on orders over $50.00. Unused items can come back within 30 days, and a restocking fee may apply (returns).
Details
| Battery | 400 mAh (our listing; Smyle doesn’t publish it) |
|---|---|
| Voltage | 3.3 V, fixed |
| Carts | 0.5 g and 1.0 g fit inside the storage piece; any size on top |
| Charging | USB-C under a rubber cover; 60 to 90 minutes |
| In the box | Lip balm battery; Lip balm storage piece; 2 long top caps; 2 short top caps; 2 foam inserts; Charging port cover; Carrying case |
“Our listing” means it comes from our own product listing.
Sources
- Lip Balm Cart Pen, Smyle Labs, checked November 8, 2026
- Lip Balm Cart Pen guide, Smyle Labs support, checked November 8, 2026



