Cigarette power port re-wiring...

[Swifty1638]

I wired my cigarette thingy up the other day, to plug a power converter into it, to run my laptop off of it. But, the power thingy said overload..I think it's due to it not getting sufficient power from the cigarette thing (wtf is it's real name?) I wanna know..can I re-wire this thing off of the battery, with like a 30 amp fuse there, and run it to a switch, then to a ground. That way, it's not hot all the time, unless my switch is on, and then it will provide sufficient power for the converter? I know the converter is good..it's my dad's, used for his laptop on all of our trips, so I bet money it's the cigarette lighter thingy. What gauge wire would you recommend I run to it? 14 gauge? 12 gauge?

-A. Swift