Also I'm interested in why you chose the charger you did (Soshine) rather than the highly-touted Nitecore Intellicharger i4 version 2? Any particular reason? I've been reading all the battery stuff over on the mountain biding forums and don't believe I've seen it mentioned.[/QUOTE]

This guy is the guru of the light forums. Review: Soshine SC-S1max V3 Charger | BudgetLightForum.com
I bought two two bay version and it will charge two 3400 Panasonics in less than 4 hours.