I have a cable that I cannot match with any device. My question is whether this is a standard cable, or rather a proprietary invention.

On one side there is a standard USB Type A male connector.

enter image description here

The other side is the one I cannot recognize. It looks like an electrical connector (230V, Europe, often used to connect some "mobile radios" (usually also powered by batteries)), such as this one: https://i.stack.imgur.com/UZSez.jpg. It is smaller, enforces polarity, and is obviously not for 230V.

(the scale on the images below is in centimeters)

enter image description here

enter image description here

enter image description here


1 Answer 1


Looks like a Philips shaver USB charging cable. So it is a proprietary cable.

  • 1
    \$\begingroup\$ Do those have some sort of excessively clever power input circuit which can accept both 5 VDC and 220 VAC over the same two contacts? \$\endgroup\$ Sep 7, 2020 at 15:58
  • \$\begingroup\$ @ChrisStratton no, nothing excessively clever. They use a wall wart, so there won't be 220 VAC anyway over that plug, but smaller isolated DC voltage. \$\endgroup\$
    – Justme
    Sep 7, 2020 at 16:02
  • \$\begingroup\$ It looks like there's a non-standard groove on this which would hopefully make it impossible to plug earlier earlier grooveless Phillips/Norelco direct mains cords into the DC input product. But it's not clear what would prevent a standard double-groove mains cord from fitting. Even a slight difference in spacing and different grooving seems very risky as someone may say "oh, I'll make that fit" and grab a pocket knife. They really should have changed their case mouldings when they changed input voltage; they change them now and then anyway for aesthetic design reasons. \$\endgroup\$ Sep 7, 2020 at 16:05
  • \$\begingroup\$ You are correct however that overall it is smaller. The picture seems to show 11 mm as the width, I measure 14mm for the older shave mains cord, and a standard mains cord is a bit wider still. It still makes me uncomfortable and feels like they did a "lazy" change rather than a good one (and at the cost of having a likely custom connector made!)... Isn't there a European e-waste avoidance directive requiring USB charging cords to use standard connectors for interchangeability? Not that those are the most robust thing for non-USB power applications anyway. \$\endgroup\$ Sep 7, 2020 at 16:19
  • \$\begingroup\$ @ChrisStratton: the universal charger law (still in preparation) would be for mobile phone chargers. Other chargers are not impacted, unfortunately. \$\endgroup\$
    – WoJ
    Sep 7, 2020 at 17:53

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.