Using independent actuators, motors and lightweight conformal structures, lithium ion battery powered FORTIS allows soldiers to carry 180 pounds up five flights of stairs while expending less energy.
There is a 2017 Youtube video of the FORTIS exoskeleon
In May 2017, the Lockheed FORTIS Exoskeleton was at Technology Readiness level 6 and they were planning to get to Technology Readiness level 8 by the end of 2017.
FORTIS uses a three-pound, rechargeable BB-2590 lithium ion battery.
Developed by Lockheed with internal research and development funds, FORTIS is designed to help soldiers run, maneuver, carry injured comrades and perform a wide range of combat tasks while preventing hyperextension of the knee.
FORTIS is a next generation version of the HULC exoskeleton.
The Industrial version of the exoskeleton is selling for $24,000 each.