How many and what kind of weight are we talking about here? Everybody has their favorite toys, excuse me, gear. But it seems to be a violation of the KISS principle to have to pack and check expiration on 3 or 4 different types of batts.

What brought this to mind was a number of postings in the K&M match case thread regarding special battery storage.. Just struck me as an opportunity for Mr. Murphy to get involved and FUBAR the situation.