Vessel Core 510 Battery

The Vessel Core is a slim, premium 510 pen battery that pairs eye-catching colourways with an exceptionally smooth draw. Its metal body, wide 510 crown and four voltage settings make it a refined everyday battery, and in our own testing, the Core delivered noticeably smoother vapour than other batteries we've tried.

Key Features

• Exceptionally smooth vapour delivery, thanks to Vessel's carefully designed airflow
• Four voltage settings: 2.4V, 2.8V, 3.2V and 3.6V. For our oils, we recommend the 2.4V, 2.8V or 3.2V settings, as our cartridge manufacturers advise not exceeding 3.2V
• Wide 510 crown that fits cartridges of all diameters
• Durable metal body in a choice of distinctive colourways
• 3 LED indicators show battery level and your voltage setting
• Simple single-button control: 5 clicks to turn on or off, 3 clicks to change voltage, press and hold to use
• Flat base, so it stands upright on a table
• 260mAh battery with USB-C charging
• No preheat function

What's Included

• 1 x Vessel Core 510 Battery

Cartridge not included.

Technical Specifications

Why Choose the Vessel Core?

Most 510 batteries look much the same, but the Core is designed to be something you'll enjoy carrying, with colourways that stand out from the usual black and silver. It isn't just about looks: when we tested it alongside other batteries, the Core gave a noticeably smoother draw, which many people find makes a real difference to comfort. Three of its four voltage settings sit within the 3.2V maximum our cartridge manufacturers recommend, including a gentle 2.4V setting, and the wide crown means larger cartridges sit flush too. If you prefer a more classic look, the Vessel Craftsman Series offers the same controls in a real wood finish. The Core doesn't have a preheat, so if you use very thick oils such as rosin, a battery with preheat like the CCELL M4B Pro or CCELL Kap may suit you better.

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.
• This device has no preheat function, so take a couple of short, gentle puffs before your main draw to help thicker oil flow smoothly.
• 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.