Imagine a soldier or simply look at how most of them would have tons of stuff on their back when they are on the go and in active duty and you may be surprised at the weight they have on their shoulders. Hence, adding a new device that weighs around 1.7 lbs. should not be too much of a load to add on.
Besides, the power they generate will be to their benefit too. This has something to do with the Bionic Power PowerWalk System, an athletic knee brace that can generate electricity on the go. The power generated can reportedly be enough for up to four cellular phones and maybe some other stuff such as flashlights they have in tow.
With such a system, soldiers are bound to benefit a lot since they can stay in touch with their mother base and not worry about running out of power wherever they may be assigned.
A system like the PowerWalk could help soldiers save nearly $135 a day in battery cost, helping the army save nearly $27,000 per soldier on an annual basis.