Capacitor vs Battery

i think it was last week i was talking with a certain someone about capacitors; although i can't remember in what context we were exactly talking. today i was reading to keep up on some of my chemistry knowledge and came across an article on ultracapacitors. which eventually let me to this capacitor, which if i am reading its data sheet correctly it says it is 5000 F. this struck me as a wow! because i though capacitors were lucky to get into the millifarad range...

then i read a little bit more and found this article about ultracapacitors. but it still seems a bit like the capacitor is a battery. it is interesting and gives some good rumination material.