Does anyone know what the batteries are? Since it is said to take either alkaline or lithium, they might be AA or AAA.
If it takes 2-3 AAs, an extra set might be doable. Don't see any need to have the bag armed except during the night (don't hike in grizz country anymore).
I'm not looking at this from a bear can regulations standpoint, since I backpack where there are none. Just whether it would be worth the $250.
So it would also be nice to know the dimensions of the bag unless I missed them.
Assuming it would carry food for a week on one set of batteries, which may be the case, I think I would still want to hang the bag. A few times, when very tired, I've not hung my Ursack, just attached it in the notch of a tree some distance from camp per the instructions. The reason for hanging is often alluded to in these forums; that is, if the bear gets ahold of the bag, who knows where it will end up. And don't want the food anywhere near my tent where it may attract bears.
I guess the scenario would be that if the bear gets the sack down from the tree, he will be repelled by the bag, and run off. That sounds workable. But what about other bears.
I've never had a problem with bears outside of Grizz country unless I did something stupid. So not sure it would be worth the $250 to pay for being stupid.
Maybe the price will come down after a while. Then it would be harder to justify not getting one. Having a bear hanging around most of the night, even if no damage is done, can be pretty unsettling. And there are not often convenient places to hang at higher elevations. Guess the purchase could be more justifiable than getting the lighter PLB with less broadcast time because the lighter batteries have less capacity. It will be for next year, anyway. Tapped out now.