Apple’s new iPad is almost all battery with 42.5-watt-hours capacity – MacDailyNews - Welcome Home: “A few things not included in the presentation: The new battery is a 42.5-watt-hour rechargeable lithium-polymer battery with 70 percent more capacity compared to the iPad 2′s 25-watt-hour battery,” Kahn reports. “The new iPad battery likely will cover almost the entire surface area of the device.”
Kahn reports, “One unanswered question is whether the new iPad’s 70 percent larger battery will take longer to charge.”