Well, forget that pack. Nyko is making a battery that replaces the 3DS's battery. Sticks out a little, and I guess it's a sort of heavy, but I like heavy hand helds. Doubles battery life, so that's good for me. Will run at the proper amperage, so it's all good. Available release day. I have $75 in free money coming to me (Swagbucks, and u.talk.back), so I'm gonna buy myself some nice 3DS crap.