Ya, I saw that and wonder if it was the same for all battery packs. No one in our group runs one, but have toyed with the idea of getting one, but just haven’t pulled the trigger. Now seeing these, I’ve really second guessed the battery pack ones. The founder of Alpride actually chimed in on one and gave some really good information. Of course, there is also someone talking about the vent/intake on the Klim bags and if snow is blocking that, the bag won’t inflate.There’s video floating around of someone testing his battery powered airbag pack while laying on it. Just simply laying on his back, on the snow, while wearing the pack. The fan doesn’t have enough power to overcome the pressure.
Like I said, don’t have one, know someone with one, but am very curious of the outcome after this all shakes out.