World's Highest Capacity AAA NiMH rechargeable battery. Click here for Sanyo press release.

Although better known for its electronics products, Sanyo is the world's largest manufacturer of portable rechargeable batteries.

The company claims a 45 percent world market share for laptop PC and cell phone batteries and a 55 percent share of the digital still camera market.

About 60 percent of rechargeable batteries sold in stores worldwide are manufactured by Sanyo, according to the company's figures.