The FK Irons LightningBolt UNI Battery Pack gives professional tattoo artists the freedom to work wirelessly with any RCA tattoo machine. Built for power, balance, and portability, this compact 2 oz battery delivers up to 10 hours of performance on a single charge—keeping your creativity flowing wherever you go. Made for Artists Who Demand More: Universal RCA compatibility (EXO and all RCA machines) Lightweight at just 58g (2 oz) for optimal ergonomic balance Up to 10 hours of runtime with only 1.5 hours of charging USB-C charging from any port—perfect for travel and conventions 3-button interface for voltage control, Bluetooth pairing, and power management LED indicators to monitor voltage and battery life in real time Operates between 5–12 volts for full power control Engineered for the modern tattoo artist, the LightningBolt UNI is a no-compromise solution to powering your art with freedom and precision. Experience what wireless tattooing should feel like—clean, balanced, and built for pros.
