RE:RE:Wall units sales to skyrocket with oil going upwards It's all BS, they're too many companies making and selling battery packs, wall units and the likes. The competition is fierce right here in north america let alone having to ship from China and the mystery factory. And as for Daymak, once they break down where are you going to get them fixed. It'll be cheaper to buy another one and the scrap yards will be huge. so much for the environment.