Homedepot offers Hampton Bay 12 in. Rechargeable DC HV Floor Fan FE30-HP for $40.97 (orig. $81.68) with free shipping.

Product Description:

Hampton Bay 12 in. rechargeable DC HV fan features a sturdy base to prevent tip over. The large battery capacity can keep the fan running up to 24-hours at the lowest speed. This fan is at IPX4 water resistant level, which ensures the fan can be safely used indoor/outdoor. It's well suitable for camping, fishing, etc.