USB-C adaptor for a universal charger

brettule on 04/07/2021 - 16:20

I've got a 20v DC universal laptop charger with 11 different connectors you can swap in. It's been great over the years as a spare power supply for my various laptops. My current laptop uses the USB-C port to charge off (still 20v) but none of the connectors on my charger are USB-C. I thought it would be easy to find an HP pin to USB-C adaptor so I could keep on using the charger but I can't find anything at all. Do such things exist? My charger is this one https://www.jaycar.com.au/90w-slimline-universal-laptop-adap…

Cheers

Computing

Comments

  • scrimshaw on 04/07/2021 - 16:28
    +2

    The charger that is used to charge the laptop must have 'Power Delivery specification, where it establishes an initial charge voltage at 5V, then "negotiates" on whether it can use a higher profile to charge the device.

    Even if you found a coaxial to usb-c adapter, chances are your laptop won't accept the charge since your old-school laptop charger isn't PD spec'ed. Or you might damage something.

    • brettule on 04/07/2021 - 17:09

      Ah, I see. Thanks for that info dude, much appreciated.

  • eug on 04/07/2021 - 17:59

    Yup, you can get a DC to Type C adaptor like this. Use the Lenovo tip for your charger and plug it into the adaptor and you'll get Type C PD out.

    It's basically just a PD trigger that does the power negotiation with your laptop. I've been using one at work for about 2 years now. Works fine for me.

    • brettule on 04/07/2021 - 18:08

      ahhh! The plot thickens. $20 for a 65w adapter, hmmm, it looks like there are $20 USB-C 65w chargers available. I'm not sure I'd trust them cheapies to not spontaneously combust but it all adds to the tapestry, thanks.

      • eug on 04/07/2021 - 18:15

        Where were you on Prime Day? :)

        The GAN ones are nice and small. I use this on the go as it's so compact.

  • scrimshaw on 04/07/2021 - 18:58

    product tag for GAN charger if you're looking for one of those

    https://www.ozbargain.com.au/tag/gan-charger

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