If i'm not mis-remebering, the XX-batts doesn't have as good charge retention as the normal eneloops. Might be better to store an extra normal eneloop together with the flashlight? If the deiffreneces weren't all that big, you'd of course still be better of with a single xx than a single normal one. Does anyone know if the light still come with the metal box, or does it come with a plastic packaging now? Concidering ordering this from TacticalHid as a gift, so a metal box would be nice. I saw some pictures of it in plastic packaging on another site, however.