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crwdns2933797:0Miroslav Djuriccrwdnd2933797:0crwdne2933797:0

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[* black] Not only does the 3.7 V, 1750 mAh battery power the phone, but the user manual states that it also doubles as the NFC antenna.
[* black] O RLY? We had to see this one for ourselves.
+[* black] Lo and behold, there's a sweet antenna hiding underneath the battery's shiny wrapper. So if you ever want to buy a replacement battery (and keep NFC functional), ensure that the battery has the antenna.
+ [* icon_note] Our battery says "Near Field Communication" on it, so that might be a good indicator if it will function as an NFC antenna.