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SunFounder PiPower 3 kit is a UPS solution for the Raspberry Pi 5 SBC
(www.cnx-software.com)
Hosting your own services. Preferably at home and on low-power or shared hardware.
Also check out:
Price point of 36 is pretty good.
I personally would just spend 10$ more on a mini UPS if I was looking for battery backup as you get way more battery and can work with just about anything. Or a real UPS for 15$ more that can work with multiple devices and a battery that would probably last a pi for a good day.
the dollar sign goes in front