Even more annoying is why aren't decent USB-only ups systems?
just ditch the 110 outlets for usb-a or usb-c ports and skip the inverter.
I'd love to power a pi or 3 from ups-based usb ports.
just ditch the 110 outlets for usb-a or usb-c ports and skip the inverter.
I'd love to power a pi or 3 from ups-based usb ports.
These cheaper ones just provide 9V and 12V output to power a fibre and/or WiFi router, as well as 5V USB-A, and start at around 30Wh capacity - some for less than USD 20. If you pay a little more, you can get 24/48V PoE included as well.
Unfortunately, ones providing USB-PD are quite rare. You do get "power stations" [2] with USB-PD (in addition to an AC inverter). These are typically USD 100 - USD 1000, and have much larger capacity.
Examples (I haven't tested these and do not specifically recommend them):
[1]: https://www.amazon.com/Lithium-Battery-Appliance-Monitor-uni...
[2]: https://www.amazon.com/Portable-Solar-Panel-Power-Station-Ge...