Yocan Uni 3.0 Box Mod 510 Battery

Top Features at a Glance

• Adjustable chamber fits carts from 11mm to 16mm wide and over 42mm tall
• 1.93" HD animated screen with three display themes
• Variable voltage from 1.8V to 4.2V
• 1.8V 10-second preheat for thick oils
• 650mAh battery with USB-C charging in about an hour
• Magnetic 510 adapter for quick cart swaps
• Hanging hole for a lanyard or keychain
• Safety features including a 15-second cut-off, short circuit protection and 1-hour auto shut down

About the Yocan Uni 3.0

Released in 2024, the Uni 3.0 builds on what made Yocan’s Uni line popular: one battery that fits almost every cartridge. If you switch between brands and you’re tired of carts that wobble, stick out, or don’t fit at all, this is the kind of battery that solves that problem.

Your cart screws onto a magnetic adapter, drops into the chamber, and then you dial in the width and height so it sits snug with the mouthpiece lined up perfectly. Everything except the mouthpiece is hidden inside, so it stays discreet and protected.

The screen is a big upgrade too. It’s a 1.93" HD display that shows your battery, voltage, puff count and coil resistance, and you can choose between three animated themes: Classic, Planet and Shiny Cat. It’s a small thing, but it makes the Yocan Uni 3.0 a lot more fun to use than a basic box battery.

Specs

• Cartridge Diameter: 11mm to 16mm
• Cartridge Height: Over 42mm
• Battery: 650mAh
• Voltage Range: 1.8V to 4.2V
• Preheat: 1.8V for 10 seconds
• Coil Resistance: Above 0.8Ω
• Screen: 1.93" HD animated display
• Activation: Button
• Safety Cut-off: 15 seconds
• Auto Shut Down: After 1 hour
• Charging: 5V/1A USB-C, about 1 hour
• Size: 75mm x 42mm x 31mm
• Release Year: 2024

What’s Included in the Box

• 1 x Yocan Uni 3.0 Device
• 1 x Magnetic 510 Thread Adapter
• 1 x USB-C Charging Cable
• 1 x Instruction Manual

Cartridge not included.

Buy the Yocan Uni 3.0 in Canada

We’re an authorized Yocan retailer, so every Uni 3.0 we sell is 100% authentic and backed by warranty. Orders ship from our Canadian warehouses within 48 hours in plain, discreet packaging.

Shopping around? Check out our full lineup of 510 thread batteries to compare.

Everything Else You Need to Know About the Yocan Uni 3.0

Build Quality and Materials

The Uni 3.0 has a zinc-aluminum alloy body that feels solid in your hand without being heavy. It holds up well to daily pocket use and doesn’t have that cheap, plasticky feel some box batteries do.

At 75mm tall, it’s smaller than a lot of car key fobs and slips easily into a pocket or bag. The built-in hanging hole is a nice touch if you’d rather keep it on a lanyard or clipped to your keys.

How does it work?

Here’s how to set up and use the Yocan Uni 3.0:

• Attach your cart: Screw your cartridge onto the magnetic 510 adapter, then drop it into the chamber.
• Adjust the height: Push the height adjustment button on the back up or down until the mouthpiece sits where you want it.
• Adjust the width: Turn the diameter dial on top to tighten or loosen the chamber until your cart is locked in place.
• Turn on/off: Click the power button 5 times within 2 seconds.
• Vape: Press and hold the power button while you inhale.
• Preheat: Click the power button 2 times quickly. It warms at 1.8V for 10 seconds.
• Adjust voltage: Click the + or - buttons under the screen.
• Reset puff counter: Press the - button and power button at the same time.
• Change screen theme: Click the power button 3 times to open the theme menu, use + or - to pick one, then click the power button once to confirm.

To charge, plug in any USB-C cable. It takes about an hour to get to full, and the battery indicator turns off once it’s done. It doesn’t support fast charging, so a standard charger works best.

For battery life, most casual users can get 2 to 3 days out of a charge. If you use it a lot, it’s back to full in an hour.

To keep it working well, clean the contacts inside the chamber about once a month. Remove your cart, turn the device off, and gently wipe the contacts with a cotton swab and some isopropyl alcohol. Wipe the outside with a dry cloth and let everything dry fully before putting your cart back in. Built-up residue on the contacts is the most common cause of a cart not hitting properly.

Pros and Cons

Pros

• Adjustable chamber fits a huge range of 510 carts
• Big animated screen with three themes to choose from
• Cart stays hidden and protected inside the body
• Solid metal build that feels durable
• Compact size with a handy hanging hole
• Magnetic adapter makes swapping carts quick

Cons

• Button activated only, there’s no draw-activation
• No fast charging support
• The magnetic adapter is plastic, so it’s worth being gentle with it
• Bulkier than a slim pen-style battery

Temperature Settings

Like most 510 batteries, the Uni 3.0 uses voltage instead of exact temperatures. More voltage means more heat going to your coil.

• Lower range (around 1.8V to 2.4V): Best for flavour. Great for live resin and rosin carts where you want to taste the terps.
• Mid range (around 2.4V to 3.0V): A balanced setting for most oil carts. 2.4V is a good starting point if you’re not sure.
• Higher range (around 3.0V to 4.2V): Bigger clouds and better for thicker oils, but can get harsh on some carts.

Start low and work up until you find what you like. If your oil is thick or the cart’s been sitting in the cold, run the preheat before your first hit. It’s also worth checking your cart’s own voltage recommendation if it has one.

Warranty

The Yocan Uni 3.0 comes with a 6-month warranty covering factory defects like battery, screen or charging issues. If something goes wrong in that time, send us a short video showing the problem. Once it’s confirmed defective, a replacement gets shipped out and there’s no need to send the original back.

Damage from drops, water, misuse or normal wear and tear isn’t covered.