About power supply..

[Parcs]

So I was reading this Safety Instructions that came with my new Pi 3 and I saw the first bullet:
"This product shall only be connected to an external power supply rated at 5V dc, and a minimum current of 2Amp. ..."

Can someone elaborate this part please, and give examples.
Replies are very much appreciated. Thank you

[Romonga]

The raspberry Pi requires a power adapter that is rated for 5 volts output and can deliver at least 2 Amps.

Most power supplies will list the rating on a label.

The part about the external power supply is simply telling you that powering the Pi from the USB port is not something you should do.

[Parcs]

So something like a wall USB-Adapter can do the job?

[darkbibble]

yes there is 2 official versions for the pi, one rated at 2A and one rated at 2.5A for the pi 3

[piglet]

Yes. However be aware that most peoples problems reported here arise over power issues. Here are some pointers:

The 2A requirement is probably overkill where you don't have any power-hungry peripherals. Many people are fine running from quality 1.5A or lower rated supplies

The rating label on many (particularly cheap) power supplies is .... dubious...

Many USB cables have very thin wires in them that simply aren't up to the job of being used for that amount power


Quality supplies (such as the offical one) and quality cables with nice thick wires inside will result in a more stable experience.

[RaTTuS]

as you don't say where in the world you are I'll leave these here
https://www.amazon.co.uk/Anker-PowerPor ... B00PK1IIJY
https://shop.pimoroni.com/products/rasp ... wer-supply
https://www.betronstore.co.uk/catalog/p ... ategory/5/
https://www.pi-supply.com/product-categ ... -supplies/
and many many others