Early 80's movie I think, about robots?
I have been racking my brain trying to identify a movie I saw as a kid for some time now. Hopefully now that I've found this site, someone may know what I'm talking about. Unfortunately I do not remember much about the movie at all, I was really young when I saw it. I am 32 now, so best I can figure is that I saw it back in the early Star Wars days so my guess is that it is an early 80's film, but it could have been from the 70's, I was to young to know the difference if it was old or new when I saw it.
Anyway, all I can remember is that it was a movie about robots. These robots were upright walking robots, something like c3po from star wars. If I remember correctly, I think there was something about one of the robots batteries were dying, and they were on a quest to get a charge before they died or something like that. I was NOT "Short Circuit", a great movie. Or "Batteries Not Included", and it was not "Electric Dreams". I seem to remember it being called something like "Heartbeat" or something like that, but of course upon searching Google, there does not appear to be a movie like I'm looking for associated with that name. Does anyone remember this movie?