This is a follow-up to this thread: https://arstechnica.com/civis/threa...-polarity-of-this-laptop-barrel-jack.1491071/tl;dr I have a laptop but no charger, and I'm ...

[Robert Nixdorf] frequently needs to use this high-end audio recorder, but it sucks dry a set of eight AA batteries in just a few hours. Obviously a longer lasting solution was required, and he ...

Do you know how to steal power from a USB Type C power source for your hobby electronics projects? If not, this article is for you. I also wanted to know more about USB Type C power delivery (USB-C PD ...

With two USB-C ports, the USB Power Delivery protocol, and 100W of power onboard, the Elecjet 100W USB-C PD Power Adapter is equipped to charge not only two smartphones but even two laptops at once.

“The best charger is the one that shipped with your laptop” is old advice that needs updating because there are often superior options available either as your principal laptop charger, as a spare, or ...

Short version: I’ve got two USB-C hubs that claim to deliver 100 watts of PD power, but they both seem to only deliver 65 watts. Is this the hub manufacturers lying or is this my laptop reducing its ...

The Universal Serial Bus (USB) started out as a data interface, but it didn’t take long before progressing to powering devices. Initially, its maximum output was only 2.5 W; now, it can deliver up to ...