INFORMATION HANDLING SYSTEM HIGH VOLTAGE MAIN BOARD POWER SUPPLY

A portable information handling system modular hybrid architecture separates components between rotationally coupled housing portions to minimize cabling, connectors and materials, and to provide improved durability that supports recycling and reuse of the components. A single cable between the housing portions provides power and data communications for the components. A battery in a first housing portion interfaces with a secondary board having a charger and embedded controller that cooperate to provide power at a native battery voltage to a main board of a second housing portion through the cable. A switched-capacitor voltage regulator coupled to the main board reduces the power to a system voltage with a selectable divider ratio that is set based upon the measured battery voltage applied at the main board.