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Comment on On an emergency power supply with AC and DC electrical plugs, which do I use to charge or power appliances?

There is still a charger brick there…now cut a USB cable plug off and connect the power wires in to a wall outlet directly…

Plugging into a USB port on your computer? Your power supply is already converting 120/240 vac(depending on location) to 12 vdc. That’s fine. Bypass that power supply and connect your phone to wall power directly and expect flames…

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forestbeasts@pawb.social ⁨1⁩ ⁨week⁩ ago
USB’s 5 volts, ain’t it? Not 12. Feed it 12 and you’ll break stuff.

(At least without USB-C PD negotiation.)

– Frost

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- vrek@programming.dev ⁨1⁩ ⁨week⁩ ago
  Oh shit you’re right. I shouldn’t respond with a technical answer late at night…
  
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