So I'm thinking of getting a Raspberry Pi 4 and I know they have raised the power requirements to 5v 3amps, rather than buying the offical power supply would using the two blue fast charge ports on my Anker PowerPort Speed 5 be okay with the specs below?

Here is a link to the item in question.


Quick Charge 3.0 Output:3.6-6.5V=3A, 6.5-9V=2A, 9-12V=1.5A

PowerIQ Output:5V=4.8A (2.4A Max Per Port)

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Kind regards,


  • Spec says quick charge 3A at 3.6V to 6.5V. Does this mean it will first quick charge P4 at 6.5V, quick fry it immediately. and short circuit current becomes 3A, and voltage drops to 3.6V? I visited Element 14 and they say there is an official P4 power supply, but no info is available. Little Birds P4 kit (AUD99) includes a power supply, but not that impressive. – tlfong01 Jun 24 at 11:11
  • This is the official Raspberry Pi 4 15.3W [5.1V, 3A] USB-C Power Supply - static.raspberrypi.org/files/product-briefs/… – tlfong01 Jun 25 at 3:40

It should work. Both USB 3 power delivery and Qualcomm Quick Charge ports default to 5V output, other voltages must be actively negotiated. AFAIK RPi 4 doesn't support such negotiation protocols, so the voltage will stay at 5V.

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