My pump works fine with the Vortech cable when the power goes outIf you use the same cable that was meant for the vortech, all it does is power on the controller. Your pump won't work. I am guessing the cable doesn't output enough voltage to power the pump. That's basically what the "booster" part is. I agree with everyone's argument here, however I think its a bit overpriced to pay $30 for a "booster". The cable should be no more than $20.