The power shoes or a smart shoe is an experimental method to generate the power to be used for the circuits. Accumulator can also be called as chemical rechargeable battery which is the resource of power for all circuits. It is placed inside the sole of the shoes. It gives continuous constant power supply for the circuits to operate and it can be used for 6 hours without recharging. Soldier / wearer would not feel any discomfort while walking or running, because of the arrangement of accumulator inside the shoes.
The complete arrangement is just like a rechargeable battery which is connected in series with the power generation circuit. The generated power from this circuit will be supplied to this power shoes. It will be charged while walking; from the rechargeable circuit all the other circuits can get power.