The Stanley FatMax V20 cordless fan was designed with jobsite environments in mind, and will run on any Stanley FatMax V20 lithium ion power tool battery. With an integrated carry handle, hanging hook, tiltable head and three control settings, it is easy to transport and set up wherever heat is making working conditions uncomfortable. It can run continuously for up to 8 hours with a fully charged 4.0ah battery, and has a robust build for long term durability. As part of the Stanley FatMax V20 system this fan shares battery compatibility with a wide variety of cordlesss power tools and is also compatible with the Stanley Track Wall storage system. Features & Benefits • Runs on any Stanley FatMax V20 power tool battery • Cordless operation: no tangled cables and trip hazards in the work area • Runs for up to 8 hours on a 4.0ah battery • Integrated carry handle for easy portability • Adjustable angle and three air speed settings • Hanging hook allows fan to be suspended above the work are