I use a 5v 2 5a power supply for my pi 2 but the zero should take much less power than that right.
Raspberry pi zero power supply requirements.
The recommended amount is between 700ma for a raspberry pi model a and up to 2 5a for a raspberry pi 3 model b see power supply requirements in the magpi issue 56 page 39.
But how much current in milliamps or amps the pi requires to function depends on your usage.
For raspberry pi 4 we recommend our 3a usb c supply.
An individual gpio pin can only safely draw 16ma.
A 5v micro usb typically powers the raspberry pi.
On november 26 the raspberry pi foundation announced the raspberry pi zero a 5 usd computer that shares the same architecture as the original raspberry pi and a b models with a slightly faster processor clock 1 ghz 512 mb of ram and sans many of.
The raspberry pi zero w takes the beloved and extremely popular pi zero and adds wireless lan and bluetooth making it perfect for embedded internet of things projects.
Mode 1 micro usb port 5v 2a the first recommended and easiest way to power the raspberry pi is via the micro usb port on the side of the unit.
It s a tiny low cost low power mini computer with mini hdmi and the same 40 pin gpio that all other raspberry pi boards use.
The raspberry pi zero uses about the same amount of power as the a and at least 50 less power than any other pi b 2 b 3 b.
Unlike the original raspberry pi model b the raspberry pi 2 model b cannot be back powered via the usb ports or at least can t be booted in this fashion.
The power requirements of the raspberry pi increase as you make use of the various interfaces on the raspberry pi.
