Apple's tablet iPad was launched finally last Saturday. As the medias reported thousands of iPad's fans lined up to buy it. Now we finally have a chance to look at its battery. The iPad use a rechargeable li-polymer battery. Rated at 24.8Wh(3.75V) the iPad battery can provides the juice for an advertised 10 hours of use. In contrast, the iPhone 3GS has a 4.51 watt-hour battery and the MacBook Air has a 40 watt-hour battery. The iPad's battery seems to integrate two separate 3.75V lithium polymer cells wired in parallel for such ample battery life.
The iPad's battery need a special power supply to charge it. The USB power supply had to be enhanced specifically for the iPad. It's a 10W unit manufactured by Foxlink Technology, Ltd., the power supply part numbers are A1357, W010A051.
Here is battery picture provided by FCC. Some other markings on the battery: APN: 616-0447 APN: DAK 120670-01HH00LH
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