-That's a good analogy.
I remember those energizer comercials for the '97 SE... or was it Duracell? Anyways I remember that commercial where two people are fighting with lightsabers and one of their sabers burns out and the person takes it apart and checks that batteries and then gets pissed off to find out they died in the middle of the fight and then sees and energizer bunny move by, that was a good commercial.