Chargers or power supplies -- which ones to use? (lemmy.world)

submitted 11 months ago by GustavoM@lemmy.world to c/raspberrypi@lemmy.ml

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Is there any difference from one another? I keep hearing that using chargers is absolutely a no-go and that power supplies are much safer and better overall. Do you guys confirm this?

Thanks in advance.

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[-] cynar@lemmy.world 2 points 11 months ago

Power supplies are better. The pi requires 5V minimum, with a decent amperage. Most chargers put out 5V exactly. Unfortunately, a lot of usb cables are light on copper. This causes a voltage drop. Your 5.00V charger might only deliver 4.5V to the pi. This causes under voltage issues. It can also cause brownouts.

The pi chargers are designed to counter this. The cables have enough copper to not drop significant voltage. They also output 5.5V (top of the usb spec range), so can handle some drop. This makes them more stable in the long run.

this post was submitted on 29 Nov 2023

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