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Smyle Labs · 510 battery (car-key shape)
Smyle Labs Car Key Penjamin
A 510 cart battery in the shape of a car key fob. The cart drops in on a magnet adapter.
$23.99In 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 | 300 mAh (our listing; Smyle doesn’t publish it) |
|---|---|
| Voltage settings | 2.7 V, 3.1 V, 3.6 V |
| Carts | 510 thread, up to 1 g, on the included magnet adapter |
| Charging | USB-C at the bottom, about 60 to 90 minutes |
| In the box | Car Key Penjamin; USB charger; 2 gold magnet adapters; Long top piece (optional) |
“Our listing” means it comes from our own product listing.
Sources
- Car Key Penjamin guide, Smyle Labs support, checked November 8, 2026
- Car Key Penjamin, Smyle Labs, checked November 8, 2026
- Charging the Car Key Penjamin, Smyle Labs support, checked November 8, 2026