I have a 12v cigarette lighter powered job that does nicely, but the more I read these posts, the moer I realize that my cheapo foot pump is probably quicker once you factor in rolling the bike out to the power source (car) and hooking it up. Will probably use the foot pump from now on. Wish my little bike pump worked as well. I hate that thing. About all I get out of it is about 50 psi, a good arm workout and lots of sweat.