Jarhead,

Thanks very much for that info. I am a bit of a redundancy freak so if I can buy 2 of one thing at .5X I will, since if one craps out I still have one good working piece of gear. In that case I guess the PowerFilm F15-300 would be my ticket? Anyway, the guy that sells these claims that you can double em up with a USB Y-adapter and I will be trying that out. He also said that if they don't work for my devices, return for money-back - very nice.

That being said, I am very impressed about the bullet test you have mentioned and will definitely take a look. I had been scared away from PowerFilm because I thought they all required batteries being plugged-in but I am assuming the one you have mentioned does not require this.