Quite the slew of responses here, half of them pretty comical, all thirsty for more information!
Someone gave me a decent sized external battery brick as a gift (15000mAm) as I'm frequently out for long periods of time. I have a Surface Pro 2 and in trying to make use of the brick, was hoping I could leach extra power when needed. Unfortunately, the propriety magnetic connection makes that a bit more of a challenge, further so by the brick's output options. There are some external bricks that have a DC outlet, which would work dandy with one of these http://www.amazon.com/EZMAX-Mobile-Charging-Microsoft-Surface/dp/B00LRH99Y8/ref=sr_1_2?ie=UTF8&qid=1421980074&sr=8-2&keywords=dc+to+surface+pro+2
Seeing as power specs sheets are a little harder to scrounge up, at least according to the link the tablet would draw 3.6A and the device only provides USB power for 2.4a. If I understand it correctly though, at 2A it would only supply 5V and it wouldn't do me much good anywho. For some reason, I was thinking there was some USB extension that powered more (I've seen some flatbed scanners that had them, and seem to have a slightly more robust cord?).
Eitherway, I was looking to probably spend more money than it was worth just to use a gift from a friend
And I meant it as [strange | odd]. I have a tendency to use non-colloquial language; there was that time I told a woman they had a frumpy looking shirt and they took it the wrong way....