Lets consider past generations of the iPad first, then compare them to the rumors currently circulating the web about the iPad 3. When Apple first launched it’s tablet PC, it was rated at 10 hours of battery life. Of coarse, that’s on a rough estimate, it depends mostly on what you’re doing with the device. Watching HD video hour after hour isn’t going to keep the battery alive 10 hours.
Apple made the same estimate with it’s current generation tablet, the iPad 2. 10 hours of battery life is what the iPad 2 could take. The iPad 3 is nearing closer and closer, rumors are steadily streaming out and with that, one must question what the battery life will be on the iPad 3.
An updated graphics card, higher resolution display, better processor, siri voice control and 4G compatibility all speculated for Apple’s next tablet. Knowing how Apple works, the iPad 3 is, at minimum, going to have 10 hours of battery life. Whether Apple can come up with more efficient components, a larger battery or better battery chemistry to push past that 10 hour rating, remains to be seen.