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Jacob Schererさんによる編集

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[* black] Lifting off the LCD exposes the iPad 2's battery; A 3.8V, 25 Watt-hour unit. That's just a hair more than the original iPad's 24.8 Watt-hours, so any improved battery performance can be attributed to software and other hardware improvements.
[* black] Also listed on the battery is a capacity of 6930 mAh. Since mAh = Watt-hours / volts * 1000, converting usingmAh, which may appear to contradict the above numbers yields 25 / 3.8 * 1000 = 6,579. It looks like there might be some rounding going on here, oralready mentioned 25Wh at 3.8V ((25Wh/3.8V)*1000=6579 mAh), but 3.8V is the batterylisted nominal voltage, not the average voltage. The average voltage might actually beof the battery over a full charge/discharge is closer to 3.6V leading to a more like 3.6 voltsaccurate calculation ((25Wh/3.6V)*1000=6944 mAh).
[* black] Also listed on the battery is a capacity of 6930 mAh. Since mAh = Watt-hours / volts * 1000, converting usingmAh, which may appear to contradict the above numbers yields 25 / 3.8 * 1000 = 6,579. It looks like there might be some rounding going on here, oralready mentioned 25Wh at 3.8V ((25Wh/3.8V)*1000=6579 mAh), but 3.8V is the batterylisted nominal voltage, not the average voltage. The average voltage might actually beof the battery over a full charge/discharge is closer to 3.6V leading to a more like 3.6 voltsaccurate calculation ((25Wh/3.6V)*1000=6944 mAh).
[* black] After disconnecting its cable, the display can be removed from the iPad 2.