“Does the fast charging feature work when the charger is connected to a computer via standard 2.0 usb port or must it be connected to a wall outlet?”

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• Danielw5536, A standard 2.0 usb port of a laptop, for example, is limited to a given amount of electrical flow or amperage. It was not designed to put out what the Samsung "Fast Charge" charger is designed to provide. The wall outlet is protected by a 15 or 20 Amp circuit breaker. This is like tapping into a river versus a small country stream. Huge difference in the amount of flow, in your case, electrons flowing through the wires. Make sure you are connecting a Samsung phone designed for "Fast Charging". Otherwise the charger will sense this & will charge the phone at the slower, standard rate so as not to damage your phone. Happy charging!

  Answered by SilverFox 8 years ago

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• No it needs 9 volts to FAST CHARGE USB 2.0 is only 5 volts

  Answered by Gport 9 years ago

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• It needs to be connected to the official Samsung Fast Charger wall plug.

  Answered by CineRik 9 years ago

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• It device must be connested to a fast Charging adaptor in order for the fast Charging feature to work.

  Answered by Tones 9 years ago

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• I have mine connected through a USB 2 and it works just fine.

  Answered by kbennett65 9 years ago

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