Overview
The Yocan Kodo Pro is one of the best values in vaping today. For just $15, you get an OLED display, precise 0.1V voltage control, and a puff counter - features that typically cost $40 or more on other devices. It's not a compromise battery that happens to be cheap; it's a genuinely capable device at a price that makes no sense.
Building on the foundation of the original Kodo, the Pro version brings premium features to an ultra-affordable price point that redefines what budget buyers should expect.
What We Tested
Our hands-on testing methodology
Unit Tested
Kodo Pro (Black)
Testing Period
8 days of use
Voltages Tested
1.8V to 4.2V range
Cartridges Tested
5 different carts
Battery Life
400mAh capacity
OLED Display
Puff counter tracked
At just 53mm x 17mm x 20mm and weighing only 26 grams, the Kodo Pro is one of the most compact display-equipped 510 batteries available. Yocan has managed to pack impressive functionality into a device small enough to disappear in your palm, making it ideal for discreet, on-the-go vaping.
Design & Build Quality
The Kodo Pro prioritizes compactness above all else, and it shows in every design decision. This is a device built for ultimate portability without sacrificing functionality.
Materials and Construction
The outer shell is constructed from durable plastic with a smooth matte finish. While plastic construction may not feel as premium as aluminum alternatives, it keeps the weight remarkably low at just 26 grams. The build quality is solid for the price point, with no rattling components and tight seams throughout.
The OLED Display
The standout design element is the OLED display screen positioned on the front face of the device. Despite the compact dimensions, the screen is surprisingly readable and displays:
- Current voltage with 0.1V precision
- Battery level in a five-segment indicator
- Puff counter that tracks total draws (resets at 9999)
- Puff duration showing real-time draw length
The display activates during use and provides at-a-glance information that eliminates the guesswork associated with LED-only indicators.
Button Layout
The Kodo Pro features a straightforward control scheme:
- Power button on the side for on/off and firing
- Plus (+) and minus (-) buttons below the display for voltage adjustment
This layout is intuitive and allows for quick voltage changes while viewing the screen. The buttons provide satisfying tactile feedback and are positioned to prevent accidental activation.
Cartridge Connection
The standard 510-threaded connection sits flush on top of the device, accommodating virtually all oil cartridges on the market. The connection is solid and secure without being overly tight.
Available Colors
The Kodo Pro comes in an extensive range of colors including Black, Red, Purple, White, Yellow, Light Blue, Teal, Rosy, and Green, with newer colorways being added regularly. This variety allows users to match their personal style.
Features
OLED Display with Puff Tracking
The OLED display is the Kodo Pro's defining feature. Unlike LED-based batteries that require memorizing color codes, the display shows your exact settings at a glance:
- Voltage readout displays your precise setting (e.g., "3.2V")
- Battery indicator shows remaining charge in five levels
- Puff counter tracks usage and automatically resets at 9999 puffs
- Puff timer shows the duration of each draw in real-time
The puff counter is particularly useful for users monitoring their consumption or tracking cartridge usage. The timer activates after 0.5 seconds of draw time, helping users avoid excessively long draws that can damage cartridges.
Precise Voltage Control (1.8V - 4.2V)
Unlike budget batteries with preset voltage levels, the Kodo Pro offers true variable voltage control:
- Range: 1.8V to 4.2V
- Increments: 0.1V precision
- Adjustment: Plus and minus buttons below the display
This granular control allows you to dial in the exact voltage for any cartridge, whether you prefer flavor-focused low-voltage sessions at 2.0V or maximum vapor production at 4.0V. The ability to fine-tune in 0.1V steps is a feature typically found only in higher-priced mods.
10-Second Preheat Function
The Kodo Pro includes a preheat mode activated by double-clicking the power button:
- Duration: 10 seconds
- Voltage: Fixed at 1.8V
- Deactivation: Double-click again to stop early
The preheat function gently warms thick oils without burning, making it easier to achieve consistent vapor from the first draw. The 1.8V preheat voltage is conservative enough to avoid damaging terpenes while effectively thinning viscous concentrates.
15-Second Safety Cutoff
The device automatically stops heating after 15 seconds of continuous activation. This feature:
- Protects cartridges from overheating
- Conserves battery life
- Prevents accidental extended firing
USB-C Fast Charging
The Kodo Pro uses USB-C charging with impressively fast charge times:
- Full charge: Under 30 minutes
- Partial charge: Quick top-ups in 10-15 minutes
This fast charging partially compensates for the smaller battery capacity, allowing you to get back to vaping quickly.
Performance
Vapor Production
The Kodo Pro delivers consistent, reliable vapor across its entire voltage range. The precise voltage control allows for excellent tuning:
- 1.8V - 2.4V: Minimal vapor, maximum flavor preservation for terpene-rich cartridges
- 2.5V - 3.2V: Balanced performance suitable for most cartridges
- 3.3V - 3.8V: Increased vapor production with good flavor
- 3.9V - 4.2V: Maximum vapor output for thick distillates
The 0.1V increments allow you to find the exact sweet spot for each cartridge rather than settling for a preset that may not be optimal.
Battery Life
The 400mAh battery is the trade-off for the Kodo Pro's ultra-compact size. In practical use:
- Light users (10-20 puffs daily): 1-2 days per charge
- Moderate users (30-50 puffs daily): Daily charging required
- Heavy users (50+ puffs daily): Multiple charges per day
While the battery life is modest compared to larger devices like the 900mAh Kodo Plus, the sub-30-minute USB-C charge time makes this less of an issue than it might otherwise be. For users who prioritize compact size and display features over extended battery life, this is an acceptable compromise.
Display Accuracy
The OLED display provides accurate, real-time information. The voltage readout matches actual output, and the battery indicator provides reliable estimates of remaining charge. The puff counter and timer function flawlessly, tracking usage accurately over extended periods.
Real-World Usage
In daily use, the Kodo Pro excels as a compact, feature-rich cartridge battery. The display becomes indispensable once you've used it, providing confidence in your settings without guesswork. The ultra-compact size fits comfortably in any pocket, and the light weight makes it easy to forget you're carrying it.
The precise voltage control is particularly valuable when rotating between different cartridge types. You can save mental notes of your preferred voltages and dial them in exactly rather than settling for the closest preset.
Pros & Cons
Strengths:
The OLED display is a game-changer at this price point, providing information and control typically reserved for premium devices. The 0.1V voltage precision offers unmatched customization for dialing in your perfect experience. The ultra-compact dimensions and featherweight 26g construction make this one of the most portable display-equipped batteries available. USB-C fast charging under 30 minutes keeps downtime minimal. At under $15, the value proposition is exceptional.
Weaknesses:
The 400mAh battery is the primary compromise, requiring daily charging for most users. The plastic construction, while functional, doesn't convey the same premium feel as metal-bodied alternatives. Users who prioritize all-day battery life over features may prefer the larger Kodo Plus despite its lack of display.
Verdict
The Yocan Kodo Pro is, simply put, the best $15 you can spend on a 510 battery. The OLED display, 0.1V precision control, puff tracking, and USB-C fast charging are features that belong on a $40+ device - yet here they are at a price point that makes upgrading a no-brainer.
Yes, the 400mAh battery means daily charging for most users. But the sub-30-minute USB-C charge time makes this a minor inconvenience rather than a dealbreaker. And the ultra-compact size means you can actually carry it everywhere without noticing.
If you're still using a basic pen battery or wondering whether premium features are worth the money, the Kodo Pro answers that question definitively: you can have both performance and value. This is the battery we recommend to anyone asking what they should buy, and it's earned that spot.
Related: Yocan Kodo Pro Manual