Panasonic Shows Long-Lived AA Battery

Panasonic's Evolta batteries are shown after being awarded a certification of Guinness Book of World Records as the world's longest-lasting AA alkaline battery cell during a press conference in Tokyo in this Jan. 15, 2008 file photo. Evolta goes on sale in April in Japan, and is planned for overseas markets later this year, according to Matsushita Electric Industrial Co., which makes Panasonic brand products. (AP Photo/Koji Sasahara)