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iMac power supply died, and I decided to replace instead of fix. The day after I ordered the replacement, my iPad screen failed to light the screen. That I intend to fix, but I didn’t want to touch until I could load the backups form the old disk drive onto the new computer.

Took nearly a month (long story) for the new computer to arrive, during which the iPad has been untouched on the coffee table. Every once in a while, including today, it makes the new mail sound.

And I just confirmed with the iPhone that it is still online and reporting its location.

When it was in full use, it was down to 20% or less every night. I expect sleep to use less power, but that really surprises me. Is that big a difference typical?

  • I guess the screen really accounts for most of the energy usage. – dwightk Mar 25 '14 at 3:06
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It sure is!

http://youtu.be/GX2hy-L94T0?t=9m13s Here's a video of Steve Jobs talking about the original iPad's battery.

All iPads have 10 hours of battery life but 1 month of standby time.

  • Wasn't that before push notifications? I'd expect a large drop in battery life with notifications running. – 0942v8653 Mar 26 '14 at 1:02
  • Even if standby includes downloading lots of mail and reporting it’s location for Find My iPad? – WGroleau Mar 26 '14 at 4:20

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