Thread: Data usb cable without 5v
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Old 03-02-2023, 07:25 AM   #7
Quoth
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Quote:
Originally Posted by DiapDealer View Post
As others have mentioned, your battery doesn't need to be protected. But there are some situations where a USB connection that blocks the 5v pin can be handy (like not wanting my OctoPi to try and power my 3D printer's display module). Taping or pulling the 5v+ pin out of a USB cable connector is not impossible by any means, but I took the easy way out and got a couple of these:

https://www.amazon.com/dp/B094FYL9QT/

Pretty specialist, though. Note that blocking the 5v power could prevent the transfer of data in some scenarios. Especially with some smart phones and tablets.
Most gadgets like phones, tablets or Kindles won't "detect" the Host computer if there is no 5V, as indeed the OP discovered from cutting the cable.
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