Smyle Labs Penjamin Discreet Cart Battery Concealers of the Next Level
Next Gen Vape Battery Concealers
Ordinary stick batteries are fine—assuming your design goal is “tiny metal flashlight attached to a dispensary cart.” Smyle Labs had a stranger and considerably more entertaining idea: build 510 batteries that resemble familiar everyday objects, then add useful functions such as writing, cartridge storage, adjustable voltage, cloud filtration and cord-free charging. True discreet cart batteries.
Your Cart Battery Has Entered Its Secret-Agent Era
Some vape batteries compete with giant screens, oversized batteries and enough menu settings to qualify as entry-level accounting software. The Smyle Labs Penjamin collection travels in the opposite direction. Its devices borrow the shapes of things already found in pockets, desk drawers and everyday carry kits.
That matters to cartridge users because a good concealed battery is not only about appearance. It should protect the glass cart, keep the setup compact and provide reliable power without turning every session into an engineering exam.
As someone who prefers dispensary cartridges, my priorities are fairly simple: low voltage for preserving flavor, enough airflow for thick oils, a preheat option when the cart wakes up feeling stubborn, and a design that does not leave an exposed glass cartridge begging to meet the floor.
Smyle Labs Penjamin Cart Pen
The vape pen that finally took the “pen” part of its job description seriously.
A Real Pen with a Very Different Second Shift
The original Penjamin is the obvious starting point because it combines a standard 510 cartridge battery with a functional ink pen. Twist the bottom to expose the writing tip, then use the concealed button beneath the clip to control the battery.
A cartridge installs beneath the removable upper covering, which gives the setup a cleaner silhouette than a conventional exposed stick battery. The included adapter helps accommodate common half-gram carts, while the housing is also intended for many full-gram cartridges.
- Writes with real ink
- Three adjustable power levels
- Two-click preheat function
- Hidden button under the clip
Pros
- Actually works as a writing pen
- Preheat helps with cold or thick dispensary oils
- Multiple power levels offer more control than fixed-voltage pens
- Housing provides more cart coverage than a bare stick battery
- Easy-to-understand click controls
Cons
- Micro-USB feels dated beside newer USB-C models
- Longer than many compact cartridge batteries
- Cartridge compatibility can depend on cart shape and mouthpiece size
- Button operation is less effortless than auto-draw
Smyle Labs Inhaler 510 Cart Battery
Full cart concealment plus a personal cloud filter—because subtlety apparently needed a sequel.
The Most Feature-Packed Concealer in the Lineup
The Inhaler is the overachiever of the group. A compatible cartridge sits inside the housing rather than hanging outside, while short and long cover options help accommodate common cartridge heights.
Its second function is an integrated personal filter. Instead of exhaling through the cartridge side of the device, the user can exhale through the replaceable filter section to reduce the visible cloud. Smyle Labs includes two filters and clearly states that the product is not a real medical inhaler.
Four voltage settings begin at a cart-friendly 2.2 volts, making this especially interesting for flavor-conscious dispensary-cart users. Lower heat can preserve terpenes and reduce the scorched “my expensive cart now tastes like a toaster” experience.
- Fully enclosed cartridge chamber
- Integrated replaceable cloud filter
- Four voltage settings
- Modern USB-C charging
Pros
- Completely surrounds the cartridge
- Low 2.2 V option suits flavor-focused sessions
- Four power settings cover thin and thick oils
- Built-in filter offers functionality beyond appearance
- USB-C charging and multiple cover sizes
Cons
- Replacement filters become a recurring accessory
- More pieces to keep organized
- Larger than a basic cart battery
- Must never be confused with or used as a medical device
Smyle Labs Penjamin Lip Balm Cart Battery
One tube powers your cartridge. The other stores it. Neither one moisturizes your lips, so let us avoid that particular experiment.
The Simple, Pocket-Friendly Penjamin
The Lip Balm Penjamin uses a two-piece system: a 400 mAh rechargeable battery and a separate storage tube for a compatible cartridge. The battery runs at a fixed 3.3 volts and activates automatically when you inhale. It is concealed auto draw cart battery, so there are no buttons, menus or accidental five-click interpretive dances.
The storage tube is more than a visual gimmick. Tall and short caps help accommodate different cartridge lengths, while included foam spacers reduce rattling around smaller carts. For shoppers carrying glass dispensary cartridges, that separate storage piece is arguably the most practical feature.
One operational detail matters: the removable rubber cover at the bottom protects the USB-C port, but the airflow inlet is located in the same area. Remove that cover before inhaling or the auto-draw sensor may not receive enough airflow to activate.
- Effortless auto-draw activation
- Separate protective cart storage
- 400 mAh rechargeable battery
- USB-C charging
Pros
- No button sequence to remember
- Separate tube protects the cartridge while stored
- Spacers help reduce rattling
- USB-C charging is convenient
- Compact two-piece kit is easy to carry
Cons
- No adjustable voltage
- No preheat mode
- Bottom rubber cover must be removed before vaping
- Two-piece design gives you one more item to keep track of
Smyle Labs Permanent Marker Penjamin
A writing marker, a variable-voltage battery and a conversation you probably did not expect to have today.
More Control in a Chunkier, Familiar Shape
The Permanent Marker Penjamin houses a 300 mAh push-button battery inside a marker-style body. Unlike the fixed-voltage Lip Balm, this model offers variable power and a preheat function, giving the user more control over how a cartridge performs.
That matters when rotating between dispensary carts. A thin oil may respond well at low heat, while a thick extract that spent the night beside an air-conditioner may appreciate preheating before the first draw.
Long and short upper covers help accommodate different cartridge heights. The broader marker form also feels more substantial in the hand than a skinny stick battery, although it naturally takes up more pocket space.
- Variable-voltage output
- Cartridge preheat function
- Push-button control
- Long and short covers included
Pros
- Variable voltage accommodates different cartridge oils
- Preheat helps loosen thick or partially clogged carts
- USB-C charging
- Marker body offers a sturdy grip
- Two cover lengths improve cartridge compatibility
Cons
- 300 mAh capacity is modest
- Bulkier than a slim stick or Mini Plug
- Push-button controls require a little more attention
- Not every unusually wide cartridge will fit beneath a cover
Smyle Labs Mini Plug 510 Cart Battery
It does not pretend to be office supplies. It simply refuses to make you carry another charging cable.
The Penjamin for People Who Always Forget the Cord
The Mini Plug is less of a visual concealer and more of a convenience specialist. Its integrated USB-C connector folds or tucks into the compact body, allowing the battery to plug directly into a compatible charging source. A separate USB-C port provides a second charging option.
A full-color display reports battery life and voltage, while the unusually broad 1.5–4.2 V adjustment range gives experienced cart users precise control. For most oil cartridges, the lower and middle portion of that range will be the sensible neighborhood; the maximum setting should be approached carefully to avoid overheating delicate oil.
At 450 mAh, it also carries the largest stated battery capacity among the five models in this comparison. It is the least disguise-oriented option here, but arguably the most technologically useful.
- Built-in USB-C charging connector
- Full-color information screen
- Precise 1.5–4.2 V adjustment
- 450 mAh battery capacity
Pros
- Integrated connector reduces dependence on loose cables
- Screen shows battery and voltage information
- Wide voltage range supports fine adjustments
- Highest listed battery capacity in this group
- Very compact body
Cons
- Does not conceal the cartridge inside the body
- Integrated connector may not fit every phone case or port location
- High voltage can overpower sensitive cartridges
- More settings than a casual user may need
Which Smyle Labs Penjamin Should You Choose?
All five products serve slightly different buyers. Start with the feature you would miss most, rather than selecting solely by which design earns the funniest reaction from your friends.
Smyle Labs Penjamin Comparison Table
The table below summarizes the primary differences in a structured format that is easy for shoppers, search engines and AI assistants to scan.
| Penjamin Model | Best For | Battery | Activation | Voltage | Preheat | Charging | Cart Coverage | Special Feature |
|---|---|---|---|---|---|---|---|---|
| Writing Pen | Original multifunction Penjamin | Not stated | Push button | 3 settings | Yes | Micro-USB | Partial housing | Functional ink pen |
| Inhaler | Full concealment and cloud filtering | Not stated | Push button | 2.2 / 2.7 / 3.1 / 3.6 V | Not specified | USB-C | Fully enclosed | Replaceable personal filter |
| Lip Balm | Auto-draw simplicity and cart storage | 400 mAh | Auto-draw | Fixed 3.3 V | No | USB-C | Exposed during use | Separate storage tube |
| Permanent Marker | Voltage control in a marker body | 300 mAh | Push button | Adjustable | Yes | USB-C | Covered by fitted mouthpiece | Long and short covers |
| Mini Plug | Portable charging and precise controls | 450 mAh | Electronic controls | 1.5–4.2 V | Not stated | Built-in USB-C plus USB-C port | Exposed | Color screen and integrated connector |
The Best Concealed Cart Battery Is the One You Will Actually Use
Smyle Labs did not invent the 510 battery, but it has certainly made the category less boring. The Penjamin collection proves that a compact cart battery can be funny, practical and technically useful without becoming another anonymous metal stick.
For maximum functionality, the Inhaler is the standout. For simple auto-draw use and storage, the Lip Balm is the easiest recommendation. The Permanent Marker and original Writing Pen provide the best balance of disguise, preheat and adjustable power, while the Mini Plug is the choice for users who care more about voltage precision and never hunting for a cable again.
Whichever model you choose, start at a lower voltage with a new dispensary cartridge, increase power only when necessary and remember: expensive oil deserves better than being roasted on maximum just because the button allowed it.
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