Abstract: A forced-air battery charging system for a vehicle having an engine compartment includes a turbine assembly having a casing and a plurality of blades, the casing being positioned forwardly in the engine compartment for operably receiving ambient air as the vehicle travels forwardly and having an outlet expelling the ambient air. The plurality of blades are situated in the casing between the inlet and the outlet and are operable to rotate about an axis when impacted by the received ambient air in a direction askew to the axis. An electricity generator is operatively coupled to the plurality of blades. The system includes an air duct having walls that define a channel having proximal and distal ends, the proximal end being open and in communication with the casing outlet, the distal end being open through which the ambient air exits under the vehicle after passing through the air duct proximal end.