I have here sitting on my desk a battery charger than can charge nearly any size battery from AAA to 25650 -- using any chemistry from NICD to LiFePo. It not only is possible to create universal charging stations for different chemistries but it can be done today with today's technology -- and it could easily be future proofed by merely enabling uploading new profiles to the charger. So while we wait for universal dump chargers (agree -- a great idea), all we need in the interim is to agree on is a universal charging interface similar to the way small batteries have evolved into various niches. The two will eventually compliment each other. It doesn't need to be either/or.