I recently tried to buy a backpack mist blower (also called a cold fogger) to spray my lawn, gardens, and fruit trees and found that no one makes a battery operated one. All are either corded or have loud, sometimes difficult to start, two cycle engines. None of the models I could find are highly rated. Most have complaints about the engine or leaking tanks and hoses. It would be nice if EGO would take a look at this and consider coming up with a well designed battery operated piece of equipment.