Strio Cartbox Pro Review: Specs, Setup and Voltage Guide

The Strio Cartbox Pro is a 510 cartridge battery built to look like a disposable vape. According to Strio, it packs a 1000mAh battery, five voltage settings from 2.4V to 3.8V, a preheat function, USB-C charging and an LCD screen that shows your voltage, puff count and battery level. It fits 510 cartridges up to 14mm wide and 60mm tall, which covers most standard and 2 gram cartridges.

What is the Strio Cartbox Pro?

The Cartbox Pro is Strio‘s upgraded take on its Cartbox battery. Instead of leaving the cartridge exposed on top of a pen or box mod, the Cartbox Pro slides it inside a shell that looks like a common disposable. The result is a battery that is easy to carry, protects the cartridge from bumps and does not draw attention.

Under the shell is a full featured variable voltage battery. You get the control of a box mod in a smaller, quieter design.

Strio Cartbox Pro specs

Spec	Strio Cartbox Pro
Battery	1000mAh
Voltage	5 settings, 2.4V to 3.8V
Preheat	Yes
Screen	LCD with voltage, puff count and battery level
Charging	USB-C, about 80 minutes for a full charge
Cartridge fit	510 thread, up to 14mm x 60mm
Safety	Auto cutoff after 10 seconds, overcharge and overload protection

How do you set up the Strio Cartbox Pro?

1. Charge the battery fully with a USB-C cable before first use. Strio lists about 80 minutes for a full charge.
2. Remove the top cover and screw your 510 cartridge onto the connection until it is snug.
3. Slide the cover back on so the mouthpiece pokes through the top.
4. Turn the battery on and choose a voltage using the button, following the included manual.
5. Use preheat if your oil is thick or the cartridge has been somewhere cold.
6. Hold the button and take a slow 3 to 5 second pull, then check the screen for your puff count and battery level.

Start at the lowest voltage and work up one setting at a time. Lower settings bring out more flavor and are easier on the cartridge, while higher settings produce bigger clouds.

Who is the Cartbox Pro best for?

• People who want discretion: the disposable style shell hides the cartridge completely.
• 2 gram cartridge users: the 14mm x 60mm fit handles larger carts that will not fit many slim pens.
• Thick oil fans: preheat and five voltage settings give you room to dial it in.
• Anyone who hates guessing: the screen tells you exactly where your battery and voltage are.

How does it compare to other hidden batteries?

If you like the idea of a battery that hides your cartridge, there are a few other styles worth a look. The Smyle Penjamin car key battery looks like a car key fob. The Smyle Labs Inhaler takes on the shape of an inhaler. The Hamilton Devices Gold Bar is a novelty battery shaped like a gold bar.

The Cartbox Pro stands out for its screen and its 1000mAh capacity. If you want a battery that blends in and still gives you real control, it is one of the most complete options in our 510 battery collection.

Tips to get the most out of it

• Wipe the 510 connection now and then so the battery always reads the cartridge.
• Keep the cover on when the cartridge is installed to protect it from bumps and lint.
• Store it upright when you can so oil does not settle in the airway.
• Recharge before the battery is completely empty for longer battery life.

If your cartridge ever feels tight or stops pulling, see our guide on fixing a clogged cartridge.

Cartbox Pro vs the original Cartbox

Strio also makes the original Cartbox 2g, and the two look similar from the outside. The Pro is the step up. Here is how they compare based on Strio’s own specs:

Feature	Cartbox Pro	Cartbox 2g
Battery	1000mAh	650mAh
Voltage settings	5 (2.4V to 3.8V)	3 (2.8V, 3.4V, 3.8V)
Screen	LCD with puff count and battery level	No screen listed
Cartridge fit	Up to 14mm x 60mm	1 to 2 gram carts up to 14mm

If you want the most battery life and finer voltage control, the Pro is the better buy. The extra two low voltage settings are especially useful for people who prefer smaller, more flavorful puffs.

Pros and cons

What we like

• Large 1000mAh battery for a compact device.
• Five voltage settings, including a low 2.4V option.
• Screen with puff counter and battery level.
• Hides and protects the cartridge.

What to keep in mind

• Very tall cartridges over 60mm will not fit.
• The shell adds a step when you swap cartridges.
• Like any battery, it needs a little cleaning at the 510 connection now and then.

Which voltage should you use?

Five settings can feel like a lot if you are used to a simple pen. A good rule is to match the voltage to your oil and how you like your hits. Lower settings heat more gently and keep flavor bright. Higher settings produce more vapor but can taste harsher and use up the cartridge faster.

• 2.4V to 2.8V: the best place to start, especially with a new cartridge. Smooth, flavorful puffs.
• 3.0V to 3.4V: a balanced middle ground for everyday use and slightly thicker oil.
• 3.6V to 3.8V: bigger clouds. Use short pulls and give the coil a few seconds between puffs.

If a hit tastes burnt, drop down a setting. If the vapor is thin, use preheat first before turning the voltage up. Preheat warms thick oil so it can reach the coil, which is often a better fix than more power. Your cartridge maker may also list a recommended voltage range, and it is worth checking before you go high.

Frequently asked questions

The bottom line

The Strio Cartbox Pro gives you box mod features in a body that looks like a disposable. With a 1000mAh battery, five voltages, preheat and a screen, it is a strong pick for anyone who wants control and discretion in one device. At its price it costs less than many plain box mods, and it handles the larger cartridges that slim pens cannot. Pair it with a good cartridge, start on a low setting and it will serve you well for a long time.