So I recently built a new system for my wife; i5 2400(stock) 2 DDR3-1333 Dims GTX 460 768MB 60GB SSD 1.5TB Storage Drive Lian Li TU200 Case Corsair TX 850W psu Plugging all this into PSU calc shows me using about 335 W, not sure on the amps though. Probobly peaks around 1.5 ish. I will stress test tonight to find out. But I want to put it in our Pontiac Vibe. In fact, I want to put it in the passenger side floorboard, plugged into the 120V jack. Setup a 20 inch monitor, and basically allow for someone to lay down in the back of this car, and be able to play computer games, while we drive all over creation this holiday season. Am I insane? Would this kill my car battery?