I was excited to see this item because when it was released I couldn’t find the kit for sale only the entire setup which is fairly expensive. I ordered and it arrived quickly and basically common sense to install. I used the IK 12 to cover a full size truck twice and after the battery was still showing full so it seems to be a strong battery. As far as the foaming I think using the compressor slowed me down because I had to wait for the pressure to build back up but once the IK was at 58psi(max)it had a nice strong foam. The compressor does kick on and off automatically as pressure is needed. I think manual pumping is somewhat faster but I’m glad I made the purchase I will just have to go at the compressors pace.