Cartisan Veil Bar Duo 510 Battery

The Cartisan Veil Bar Duo is a discreet 510 battery that holds two cartridges at once, letting you switch between them with a single button press. It conceals both cartridges inside its body, adds a preheat and an LCD display, and even comes with a 14mm glass water pipe adapter.

Key Features

• Holds two 510 cartridges at once, each up to 2g
• Switch between cartridges with a single button press, or use both together
• Fully concealed cartridges for a discreet, low-key design
• 14mm glass water pipe adapter included
• Five voltage settings from 1.8V to 3.8V. For our oils, we recommend settings at or below 3.2V, as advised by our cartridge manufacturers
• Preheat function to help thicker oils flow
• LCD display showing voltage, selected cartridge and battery level
• Removable magnetic mouthpiece for quick, easy cartridge changes
• 650mAh battery with USB-C charging

What's Included

• 1 x Cartisan Veil Bar Duo 510 Battery
• 1 x 14mm Glass Water Pipe Adapter
• 1 x USB-C Charging Cable

Cartridge not included.

Technical Specifications

Why Choose the Cartisan Veil Bar Duo?

The Veil Bar Duo is the only device in our range that holds two cartridges at the same time. If you've been prescribed more than one oil, for example a different product for daytime and evening, you can keep both loaded and switch between them in a second, with no unscrewing or carrying a second battery, and the display always shows which cartridge is selected. Both cartridges stay hidden inside the device, and the included glass water pipe adapter adds the option of cooler, water-filtered vapour at home. Always use your cartridges as directed by your prescriber. Compared with the Cartisan Veil Bar Pro EVO, which offers fine voltage control, a puff counter and a larger battery for a single cartridge, the Duo is the choice when flexibility between two cartridges matters most.

This device is sold strictly for use with prescribed medication only.

Caring for Your 510 Battery

These are general, basic care tips suitable for most 510 batteries. Your device manufacturer's own care instructions may differ, always refer to the instructions supplied with your device where the two don't match.

• Periodically unscrew the cartridge, even if you're not swapping it, cartridges can occasionally seize in the thread over time if left in place for long periods.
• Wipe the connection threads and centre pin with an IPA wipe every so often, oil residue and dust here can cause weak vapour production or a battery that won't fire properly.
• If your device has a preheat function, use it before each session, this helps the oil flow more smoothly and reduces strain on the battery and connection.
• Storing the device upright where possible helps prevent oil pooling into the mouthpiece, though there's no need to worry if this isn't always practical.
• Avoid extreme temperature and pressure changes (for example, a hot car or a flight), these can affect oil viscosity and lead to leaks.
• Don't overtighten the cartridge when attaching it, this can damage the seal and make it harder to remove later.
• Handle with care, avoid dropping or excessive shaking, which can disrupt internal seals.

For discreet, enclosed-cartridge devices like the Cartisan Veil Bar Duo: the cartridge sits inside a housing, and you inhale from the housing rather than the cartridge directly, so vapour can build up inside the compartment itself, not just around the connection. Wipe out the inside of the housing with an IPA wipe every so often to keep flavour clean and prevent residue building up.