AMPY
AMPY Move is a wearable charger that captures energy from your motion. AMPY stores the energy, and turns it into power to charge your smart phone or any USB-powered device. About the size of a deck of cards and more convenient to wear than existing portable battery chargers, AMPY was designed to match the curves of the user’s body. AMPY’s two inductors transform energy that can be tapped through either of two USB ports and charge any device as fast as a wall outlet. Where other portable batteries turn into a useless brick when power is exhausted, AMPY keeps charging as long as the user keeps moving, and can hold a charge for as long as three months.