A system and method for a double source battery charger of an engine-generator (100). The double source battery charger of the engine-generator includes an electric starter (135) and a battery (125). The electric starter is selectively energized by the bat...

A hybrid engine and battery generator and a method of operating the same. The generator is controlled to operate in at least three modes: a battery-only mode, a battery charging mode, and a boost mode. In the battery-only mode, the engine is off and an int...