“The iPad’s most revolutionary feature isn’t the 2048×1536 Retina display LCD panel, or the 4G LTE connectivity. It’s something that you can’t see,” Adrian Kingsley-Hughes reports for ZDNet. “It’s the battery.”
“Apple’s put a lot of cool, but power-hungry technology into the new iPad. That Retina display screen, the quad-core graphics processor and the LTE modem all put pressure on the battery, yet Apple has managed to keep the iPad’s battery life at 10 hours,” Kingsley-Hughes reports. “How has Apple managed this?”
Kingsley-Hughes reports, “Between the release of the iPad 2 last year and the announcement of the new iPad yesterday, Apple has nearly doubled the capacity of the battery, taking it from 25Wh to a massive 42Wh. Measured in milliamps this boosts the battery from 6944 mAh to a monstrous 11,666 mAh.”
“The obvious way to boost the battery’s capacity would be to double the battery size, but given that the new iPad is only fractionally thicker and heavier than the iPad 2, it’s highly unlikely that the battery is significantly bigger than the one in the iPad 2,” Kingsley-Hughes reports. “All this points to something very significant. It suggests that Apple has managed to increase significantly the power density of the Li-ion cells that it uses. In an industry that has seemed stagnant for some time now, this is quite an achievement and goes to show that Apple’s battery research labs and manufacturing plants have been hard at work. There’s no doubt that we’re going to be seeing the fruits of this labor in other Apple products soon.”
Read more in the full article here.
MacDailyNews Take: While some progress has likely been made, other reports says that Apple did indeed significantly increase the size of the battery in the new iPad. That said, patent activity shows that Cupertino is working on battery technology, so they can utilize as many cubic millimeters as possible inside devices. See related articles below.
[Attribution: Cult of Mac. Thanks to MacDailyNews Reader “Dan K.” for the heads up.]
Apple’s new iPad is almost all battery with 42.5-watt-hours capacity – March 8, 2012
Apple patent application reveals redesigned batteries for thinner devices – January 20, 2012