The problem with battery operation is the battery's don't last. When you go to buy a new battery you can nine times out of ten replace the whole system cheaper. I've been that way with battery operated vacuums before. Same thing with drills, that's the reason I just purchased a new DeWalt Combo Drill and Driver set I could buy it cheaper than the replacement battery. It's also the reason why the Zeon battery operated ZTR's fell short, there to expensive to be cost effective when you need to replace the battery's every other year..