My Samsung Galaxy SIII comes with a battery with an Near Field Communications (NFC) label on it. Several earlier Android modles don't come with such a label on the battery. I would like to know what the NFC functionality on the battery enables Android devices and their OS to do with the battery.

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    What do you mean "how can it be used?" Are you looking for a list of every OS feature that leverages NFC? A list of every app that uses NFC? Something else entirely? Such lists would be too broad for an SE question, I would say. If you just want to know why the battery is relevant, that's answered by Why is the NFC in the Galaxy Nexus battery? The answer is that it's just an antenna. nothing more. – eldarerathis Feb 1 '15 at 19:41
  • Thanks, that answers my question. As I need to get a replacement battery, I guess I will have to get one with the NFC label then if I want the NFC on my device to work. The original battery is a 2100mAh battery which used to charge in 4 hours and last several days, but now, about a year and a half later, once the battery level reaches 47% the device powers off, and charging only lasts 2 hours, hence the need for a new one. – John Sonderson Feb 1 '15 at 19:48

Batteries labeled NFC come with the NFC antenna, without which it would be impossible for the NFC chip on the device to operate.

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