Yocan Kodo

The Yocan Kodo is one of those small everyday companions that are easy to underestimate. At first glance it looks like a simple 510-thread battery in pocket format — and that is exactly what it is. But Yocan has built this tiny cuboid so that, despite its height of roughly 4 cm, it is genuinely practical for daily use.

The concept is simple: the Kodo is a box battery for 510-threaded cartridges, meaning the common pre-filled oil carts. It has no herb chamber, no wax atomizer — it simply supplies power to a screwed-on cartridge. At 400 mAh the battery is adequately sized for the task, even if it runs flat quickly under heavy use. The standout feature: passthrough charging means the Kodo can be used while it is charging. For a device of this size, that is not a given.

The 2-second heat-up time is realistic for a 510 mod of this kind — it depends less on the device itself than on the attached cartridge. The maximum output temperature is 230°C, which is sufficient for most oils. Yocan has not built in precise temperature control; there is a manual voltage adjuster that lets you choose between Low, Medium and High. That is perfectly adequate for everyday use.

What sets the Kodo apart from many cheaper 510 cylindrical pen batteries is the form factor. The rectangular shape makes it more stable when standing and easier to hold in a pocket. It does not wobble, does not tip over and does not lose a cartridge if dropped. Which parts are included, please verify based on the specific offer. For occasional users and travelers, the Yocan Kodo is a practical solution. It is affordable, compact, straightforward and does exactly what a 510 battery should do. Anyone looking for higher output power or precision temperature control needs something else. But as a daily companion for pre-filled oil cartridges, it is hard to beat.