I have too much of an area to blow for battery powered even though they are very convenient, especially for the deck and steps . I need to blow an acre with many, many oak and maple trees . My old br420 still works just wondering if the new backpacks would make it easier . I can’t seem to push the piles far enough without have to blow manny many piles and then take em to a tarp and haul a 100 to two hundred feet .