The BaBylissPRO FXOne Replacement Battery FXBB24 is designed for universal compatibility with all FXONE tools, including BLACKFX, GOLDFX, and LO-PROFX. This interchangeable lithium battery offers up to 2.5 hours of runtime and features a 4-stage LED ring indicator to monitor battery life, ensuring efficient charging and uninterrupted performance. Keep spare batteries on hand to maintain peak operation and reliability for professional grooming.