Waiting fo the time when power armor will means an infantry soldier carrying and using an adapted AZP-23 in combat.
Cope.Since we do not know what is within the canisters or it's weight, you will not know how much the powered exoskeletons provides assistance.
Basically it could be a photo-op for all we know.
Then go get the answers to them.Yet the questions on power duration and actual practical application remain.