I recently bought a RP ZERO W board and now I am looking around the house to see if I have a cable that can power it up from the computer.

I found this: https://www.amazon.com/Genuine-Original-Sony-EC450-Charging/dp/B00BBVGHD6

A sony ec450 charger that I use my Android phone. My question now is if this cable would also work to power a RP Zero W by inserting it to the PWR In port and then to my computer.

I am new to raspberry so I do not want risk any components/computer getting damaged before I try it.

  • Yes. It should work just fine. – stevieb May 18 '17 at 14:53
  • Ok, could it potentially damage anything if the voltage/something else is wrong? – TokyoCode May 18 '17 at 15:08
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    The voltage will always be 5v over USB, whether it be plugged into a computer or a wall outlet. Unless the cable is frayed and/or has shorts, it'll be fine. If it works fine with your phone, it'll work fine here too. – stevieb May 18 '17 at 15:17

In fact it may or may NOT work.

Generally computer USB ports provide insufficient current to operate a Pi. You may get away with 500mA on a Pi Zero W, even though this is below the recommended current.

The next variable is the computer. If it has a standards compliant port it will only supply 100mA without negotiation. The Pi CANNOT negotiate, because the power port has no data connection.

MacBooks do comply, although many of the cheaper laptops just provide 5V with no control.

In short you need a proper power supply. You also need a decent cable; most Charger cables should be OK.

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The Pi usually takes at around 350 mA when not overclocked. If your cable can constantly deliver a power of at least 1 A, it should work fine. As long as the inner resistance of the cable isn't too high, also peaks in current should be no problem.

I am asking myself why you are asking that. As far as I know there is no official Pi cable, so you have to use one of yours.

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  • thanks for the answer!! yeah the reason iam asking because I am brand new to the raspberry world and i was just a bit confused on what cables would work and what cables wouldnt – TokyoCode May 18 '17 at 21:27

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