I thought I would ask with you heavy equipment guys. I have had one booster pak but it's not doing it anymore. I have equipment plus gas and diesel trucks. Is there on all around unit, brand etc that is good, better, best? Also what about amps? Our last one was around 650 and it was fine but I see some at 700 to 1000 with peak amps up to 2000. Can I hurt things if too big? I don't need the air compressor etc but having a light on the pak is a great benefit in the dark, cold, windy snow.