Fedco Batteries - Fedco Batteries is a manufacturer and distributor of batteries and battery packs for medical devices, industrial controls, E-Mobility devices, utility meters, metrology, and computer related equipment. All custom battery packs are assembled in their Fond du Lac, Wisconsin 16,000 sq/ft facility, while partners in the United States and Asia manufacture many of their laptop computer batteries. Fedco has a support staff of four graduate electrical engineers and is an authorized assembler of lithium-ion battery packs for five of the world's leading lithium-ion cell manufacturers.