iPad 3 gets thinner and lighter battery than its predecessor, the iPad 2.
According to some sources reported that a new battery unit will provide a greater number of charge cycles, and mass production will begin in Q1 2012.
Producer of new batteries for the iPad 3 is two companies: Simplo Technology and Dynapack International Technology. Apple is willing to pay for "advanced technology" at 20-30 percent more than last year. Test party batteries for the iPad 3 must be delivered to Apple's already in the 4th quarter of 2011.