Are these of any use?
Whilst searching for some info on a power supply I came across these DC-DC supplies putting out up to 700w.
They have a regulated output of 13.8v (input 10~15v) so could they be used with low-drop out regulators to bring them back down to a regulated 12v input for carpc's???
BTW - I'm just curious as I've no intention of buying one
These look like the ones Targus offers. Same wattages too. Depending on the price these could be of good use.