Improved Battery Power

This looks like a news just for military robots, however I am sure that it will find its way through a more variety of robots pretty soon. The improvement of power system for today's robots is an absolute necessity. Today's bateries only allow an average robot - be it a service or an entertainment robot - operate on average of 1-2 hours, and not with high power output. Consider a domestic robot helping around the house, doing household chores. It will need to routinely carry loads up to 25-50 lbs on average. This requires a much more efficient power system than currently available. Check this link out, for one of the latest developments....
http://www.fuelcellsworks.com/Supppage9198.html