I recently had to charge my flat battery ( not using car very much at the moment) and when I attached the neg lead back to the battery (with pos obviously already connected) I accidently (and clumsily) touched the ratchet used to tighten the nut between the neg and pos terminals of the battery resulting in big spark and me jumping quite high.

The car has been used since then and everything seems normal, but my question is could there have been damage to the electrics and/or the battery?

Many thanks.