I have a used airbag backpack for sale (I bought it this July). It has a dedicated pocket for avalanche safety equipment. You can pull the bag up to four times on one charge. There is nothing mechanically wrong with it, just some cosmetic fraying on the zipper pulls. I paid $1200 for it new, and I'm going to let it go for $550. Please feel free to text me at 509-701-7015 if you have any questions or are interested in picking it up.
https://www.blackdiamondequipment.com/en_US/pilot-11-jetforce-BD681301_cfg.html
https://www.blackdiamondequipment.com/en_US/pilot-11-jetforce-BD681301_cfg.html