Hi all, last night at 2:00 am, Wifey and I got to RDU airport from our spring break vacation in San Antonio, TX (my cousin lives there) to find her Elantra (which we left at the RDU parking lot,) with a dead battery(probably left the int.lights on for 5 days, and it was freezing at night in the parking lot at nights, too). Called airport assistance, and a guy appeared with a little flat gadget the size of a laptop with 2 cables and +/- alligator clips coming out of it. he just connected the cables to the battery posts, and started the car. Drove home fine, and all is fine with the car, too. (we could have called road-side assistance, too, but would have taken longer, I guess) This gadget could something very normal, but I was curious: What was this gadget? is it some kind of mini-battery? it looked pretty compact, like I said like a laptop, but thicker on the sides. I thought this would be a really cool thing to have in cars, in emergencies; no need to look for other cars to jump-start etc. How can I find one? How is this thing called? Thanks in advance.