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kinu-garage / hut_10sqft

Computer setup tools for my own environment, and public discussion place holder.
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ChromeOS computer: Not all USB power dongle are not charging #1013

Closed 130s closed 6 months ago

130s commented 6 months ago

It'll be beneficial for me to know the types of the power adapter that plugs to power outlet then convert to USB type-c that can charge ChromeOs powered computers.

130s commented 6 months ago

BlueAnt switching charger (input: 100v-240v, ~50/60 Hz 0.2A. Output: 5.0v, 500mA) doesn't seem to charge Lenovo C14 at all even when the OS is suspended.

130s commented 6 months ago

Samsung's small adapter (out 5v 1.0a. So blur I can't tell) was not sufficient as well.

130s commented 6 months ago

https://www.pcmag.com/how-to/what-to-do-if-your-laptop-is-plugged-in-but-not-charging

Just because a power adapter fits into your laptop's charging port doesn’t mean it’s powerful enough to charge your computer. This goes for any type of charger, but it’s an especially common problem with laptops that charge over USB-C—you can technically plug in any USB-PD (usb.org) charger, but some may have too low a wattage to properly charge. Check the wattage of the charger that came with your laptop—if it came with a 45W charger, you’ll probably want something as strong (or higher) to power it, and so on. A lower-wattage charger might keep the battery from draining while you use it, but it won't be enough to charge it any higher. If it does manage to recharge your computer, it will do so much slower than usual. While we generally recommend using the charger that came with the computer (or one that was made by the same company as your laptop), sometimes third-party USB-C chargers are necessary. If this is the case, try to use one that’s been certified by the USB-IF. For laptops that don't charge over USB-C, you should stick with the manufacturer’s official charger. Cheap, no-brand chargers you find on Amazon may cost less, but they are generally low quality and can even be dangerous (pcmag.com).

130s commented 6 months ago

For Lenovo C14, product spec shows 65W for rapid charge.

  • Supports Rapid Charge with 65W AC

I still don't know what this means for some chargers I've mentioned earlier but 5W or even less definitely sounds non competent.

130s commented 2 months ago

Noticed some USB hubs that come with PD (Power Delivery) port don't charge a laptop, with the same USB-C cable as a power input source.

130s commented 2 months ago

with the same USB-C cable as a power input source.

Turned out this is cable was coming out of another USB hub.

With a more dedicated incoming USB power source, this hub started charging.