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Radar: Device shuts down even though 19% battery left

I’m seeing this issue on my main phone after having begun to use the iOS 7 GM on it.

Filed as rdar://15056186 and on Open Radar.

Summary

My iPhone 5 (A1429) shut down with 19% battery why running Tweetbot and reading tweets via 3G network. Pushing the power button showed the “need to charge” pictogram. Immediately on connecting it to a charger the OS boots and shows 19% battery.

Steps to Reproduce

  • Charge full in the morning
  • Let the device discharge until around 20%
  • Go walk the dog and surf the internet over shoddy 3G

Expected Results

  • see a battery warning
  • be able to continue to use it
  • the device should shut down only when the battery is empty

Actual Results

  • no warning is shown
  • the device simply shuts down (you see the spinner)

Version

iOS 7.0 (11A4449d)

Notes

Other users report the same issue: e.g. rdar://15056120

Configuration

iPhone 5 (A1429)


Categories: Bug Reports

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