*****This is NOT a misting fan!***** You will never run out of power with the convenient option of using a ONE+ battery to run the fan or switching over to electric power with an extension cord for extended use. This compact design enables easy portability, ideal for both indoor and outdoor use. The battery in this kit features lithium-ion battery cells, providing the user with up to 1.5X more runtime compared to Ni-Cd counterparts. The battery is engineered to deliver fade-free power for maximum performance. The 18-Volt ONE+ Dual Chemistry IntelliPort Charger is compatible with all RYOBI ONE+ lithium-ion batteries and features IntelliPort Technology to maximize the lifetime of your RYOBI batteries. Extension cord sold separately.