Replacement Pi power supplies

bob prohaska · 2022-02-04T02:40:30+00:00

One by one, the power supplies for my Rpi2 and Rpi3 computersare failing. They came with CanaKit and Vilros kits and arenow pushing four years old. I'd prefer to buy from Amazon, since it's worked well in thepast, but the number of choices is bewildering and few lookparticulary well-matched to the Pi's needs, most being chargersand just slightly below the Pi's current requirements. Separate supplies (avoiding common points of failure) seemdesirable and I'm not reluctant to pull out a soldering ironto adapt a Pi power cable to a generic wallwart. If somebody knows of a good solution please post. Thanks for reading,bob prohaska

Feb 04, 2022 Last reply: 4 years ago 64 Replies

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Axel Berger 4 years ago

Possibly. It might be an honest typo but I know far too many who have no idea what the difference between work and power, between watts and kilowatt-hours might be. The dimensionless and disregarded time is all too prevalent. Not just for for electricity. Read the newspapers and see how often they don't differentiate between renting and buying outright (renting is cheper, honest), between capital and income, beween hourly wages and monthly or yearly salary.

It drives me bonkers and it's for that reason that I'm very particular about the correct units.

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bob prohaska 4 years ago

Well, while I wasn't looking Amazon dissapeared the $8 "official" pi4 supplies. No hint they were low on stock or a closeout, but gone they seem to be.

Instead I've ordered two "Argon 40" Pi4 power supplies at $12.50 each. It's a lot more money, I hope the units are at least decent. The images suggest they might fit my power-strip-and-cube-tap distribution arrangement. All the other choices clearly won't fit.

Given that a couple of the reviews report DOA, is there an easy way to check the supply voltage without plugging into a Pi4 (the 8 GB versions are unobtainium ATM)? Is it physically possible to probe the USB C connector pins?

Thanks for reading,

bob prohaska

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Ahem A Rivet's Shot 4 years ago

Testers exist with USB C connectors and OLED displays, also cross shaped ones with both USB-A and USB-C connectors - I've not tried them.

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The Natural Philosopher 4 years ago

ArtStudents™

Fools the Blairite generation who cannot read write or do arithmetic. But all of whom went to Uni.

I mean, look at the Abbottamus Or SocialsistSlut Rayner.

Imagine having either in charge of the economy.

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TimS 4 years ago

I say, d'ye mind? Having to imagine either of them at all is a step too far.

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