I have been travelling quite a bit and one of my frustrations remains laptop battery life. Not all Air Canada planes are retrofitted yet, so it is hit and miss if you get power.
Well, this week a teammate lent me his Toshiba Thin Slice Battery. It attaches to the bottom of the laptop adding about an inch in depth and runs forever!
On a 3 hour plane ride, I walked off with 50% battery left. He said he flew Toronto to London and still had juice at the end in power saver mode. Maybe there is hope yet.