PortaPower (HK) Limited was founded in 1992 with a mission of manufacturing and marketing high quality rechargeable batteries and related products to the customers worldwide, with special emphasis on the North American and European markets. Headquartered in Hong Kong, it has offices, laboratories and factories in Hong Kong, China and Canada. The company has world-wide staff of about 2000. Its factory in Shenzhen is ISO 9001 certified, and has a production capacity of over 1,000,000 units per month, with close to a thousand product models. PortaPower manufactures replacement batteries and also manufactures to exacting OEM requirements, its products bear some of the world抯 most prestigious brands, including Duracell, Energizer, Rayovac and others