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Read like link bait. Please change the title. Battery charging is not in the realm of secrets and mysteries.

• Synaesthesia 16y ago
  In this case it is, since Apple devices don't charge from USB in the regular way.
  • GBKS 16y ago
    Isn't that more a clever technique than a mystery?
    • Synaesthesia 16y ago
      Yeah I guess. Another lesson learned: AA batteries are good.