Hi all, Is there any such thing as a battery operated compressor for topping up tyres? I'm sick of pulling into servos, only to find their air hoses either don't work, or are fitted such that putting them to the wheel is really difficult. Plus the tyres aren't cold any more. My problem is that I don't have power in my garage, so I'm wondering if there's something that'll do the job without power, and preferably without too much effort on my part! I'll break out the extension cords if I have to, but prefer not to phaff around.