You might be tempted to use an old phone charger (or even a new one!) to power your Raspberry Pi 4 but you really shouldn't. These little computers need a steady and clean source of power at 5 volts and 3 amps, which means any old wall plug that has support for fast charging can't provide. The good news is that a dedicated power supply for your Raspberry Pi is nice and easy on the wallet.
Basic and perfect
CanaKit makes some of the most popular parts for the Raspberry Pi and this power supply is designed specifically for version 4. It's a perfect choice if you just need a way to keep things powered up.
This power supply from IBERLS provides the regulated power your Raspberry Pi 4 needs and the adapter is up to 20% smaller than the competition. If you need to plug things in where space is at a premium, this is the one to buy.
Kit and Kaboodle
You need two things to get your Raspberry Pi 4 up and running: a power supply and a case. Why not buy everything in a bundle with a fan and heatsinks, too? Save time and save money!
The old switcheroo
It's the reliable power supply from CanaKit with an inline switch for those times you need one. No more climbing under the table or bench to unplug the cord — your knees will thank you one day.
A power supply with an inline switch that doesn't have any glowing LEDs is a beautiful thing if you sleep where you tinker. The tiniest red light can be unbearable sometimes, and this power supply is the fix.
NorthPrada's power supply is filtered to cut out the 60Hz harmonic noise that can happen when you plug anything into your wall socket. If you are building any sort of audio solution with your Raspberry Pi, grab this one.
Here's what you should use
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The Raspberry Pi is a tough little bugger, but when it comes to power needs it's a sensitive kitten. You need to make sure you're giving it just what it wants and needs or it will turn into the electronic equivalent of a hairball on your workspace!
These chargers are all specifically designed for the Raspberry Pi 4 and will do the job when it comes to keeping things up and running. Our choice is the simple one — the CanaKit Raspberry Pi 4 Power Supply. It provides steady and clean power without any extra bells and whistles or switches to accidentally bump.
If you just got your Raspberry Pi the Muizei case and power supply combo is also a killer deal. You get a really cool case, power supply, a cooling fan, and a set of heatsinks all in one box so you have everything you need.
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