Blackheart claims the 8180, at six pounds, has the same hang time as five 5590s. And the 8180 takes up far less space than five 5590s.
Zinc-air batteries have been around for a while in hearing aids and a few vehicles, and the military is not a stranger to them. With the correct adapters they will power ASIPs, SATCOM/HFEI, even your old SINGCARS.
When you are out on a mission with 40+ pounds of gear hanging off of you, it might be nice to have little less weight and lot more power.
