Hacker News Reader

Meh, this problem is super, super common. I have many random electric devices that charge using USB-C that don't have the pulldown on CC.

Maybe I should get/make a shim for this.. a USB-C female-to-male thing that just passes through everything but has a pulldown on CC.

View on HN

Wouldn’t it be dangerous to plug this into a device that does not expect to be powered?

No moreso than using a USB-A to USB-C cable, unless I fundamentally misunderstand something

Doesn’t USB-C deliver more volts and amps?

Not if you’re using the resistors to demand power. It will only provide 5v, the same as USB-A. It’s sort of a “backwards-compatibility” mode.

Right. You need USB Power Delivery, which requires the chip mentioned in the article, to get real power.

My USB-C to 240v dryer plug will work great at doing something.

I have a small kit I use when traveling. It includes a short c-c cable, an anker 45W charger (which is good enough for an m1 MacBook), a c-lightning adapter, a c-a adapter and an a-c adapter. Using both the c-a and a-c adapters in series works.

Reply on news.ycombinator.com