Wi-Charge delivers freedom from power outlets and battery changes. Using safe invisible light, their products provide enough power to charge a phone across a room. With Wi-Charge, mobile and IoT devices appear to charge autonomously. Power is delivered using safe, focused, beams of invisible infrared light. Transmitters connect to a standard power source and deliver power to nearby receivers. Receivers use a miniature photovoltaic cell to convert transmitted light into electrical power. Receivers can be embedded in mobile devices or connected into an existing charging port. Transmitters automatically identify chargeable devices and discover their power requirements. Several devices can charge at the same time. Power priority is based on power requirements, battery level and other parameters.