KR1 Battery - Hamilton Devices

Hamilton Devices' most compact offering, the KR1 strips away buttons, screens, and complexity to deliver a pure inhale-activated experience inside a body barely larger than the cartridge itself. The LED color system provides voltage feedback without requiring a screen—a design choice that keeps manufacturing costs low while still giving users visual confirmation that the device is responding to their input. Optimized for CCELL cartridges like every Hamilton device, the KR1's internal circuitry is tuned to the resistance and power curves that CCELL hardware demands for smooth, consistent hits. USB-C charging rounds out the minimal feature set, and the compact body appeals to customers who carry devices in shirt pockets where even a Kodo would create a visible outline. For retailers who stock Hamilton's premium devices (Tombstone V2, Cloak V2), the KR1 serves as the entry-level Hamilton that introduces new customers to the brand ecosystem.