DAVID GREENE, HOST: NPR's business news begins with better batteries.</s>DAVID GREENE, HOST: Engineers are starting to repair some of Boeing's 787 Dreamliner planes today. They are installing new batteries - ones that hopefully don't overheat.</s>STEVE INSKEEP, HOST: All 787 Dreamliners were grounded in January - you may recall - after a lithium ion battery caught fire and another was found smoking. The engineers were installing reinforced batteries on a 17-plane fleet of Japan's All Nippon Airways. Now before the planes can carry customers again, ANA plans hundreds of test flights.</s>STEVE INSKEEP, HOST: Boeing estimates it has lost $600 million because of the battery failures.
Engineers are beginning to repair some of Boeing's 787 Dreamliner planes. They're installing new batteries — ones that hopefully don't overheat. In other business news, the solar energy firm Power-One Inc.has been sold to the Swiss industrial group ABB.