Electric shoes

I propose a way to generate power from your shoes

The shoe is lined with thin strips of piezo electric material, that when flexed produces a current.

This is then fet into a small rectifier and conditioner circuit, and then used to charge a small battery in the heel. Batteries are interchangeable for each charging, and are super lightweight.

Once the battery is removed, it clips into a general purpose power unit.

The power unit is a small block that houses the battery, and provides many different size outputs for common devices.