Brian, the PSX-3 is only sold in-store at Costco here in the U.S. Amazon has it for $89.95 but also has a $16.83 shipping and is not offered on Prime.
The specs as listed on Amazon are:
High-power EHP 18aH sealed rechargeable battery
32-inch 6-AWG industrial cables with 400 amp clamps and reversed indicator
High-volume air compressor inflates tires twice as fast as competing products
Constructed with hi-impact plastic and carbon fiber face plate
Super bright LED worklight lights up surroundings
Have used it to jump start a dead battery before, but mainly use it as a cordless tire pump and portable 12V power supply. I charge it via our inverter when on the road. A little heavy(20 lbs.), but it is fairly compact and we stow it under a dinette cushion.