Potential Issues of Using a USB Powerbank as a UPS (2021)
Hard to believe USB-PD upses aren't a common products.There's no reason anymore that a power bank should ever even have an off mode unless it's so cheap there's no passthrough, which shouldn't be a thing either because it's annoying and probably saves 50 cents.It's microamps with a good eco mode switcher.Inline USB ultracapacitor banks seem like a reasonable product too though.Hopefully USB will give us standards for power banks someday so you can get certified ones with a defined form factor and behavior.