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Waveshare UPS HAT easily adds battery backup to a Raspberry Pi
(liliputing.com)
Hosting your own services. Preferably at home and on low-power or shared hardware.
Also check out:
That's neat. What are the benefits on using the hat vs using a traditional UPS?
I would say the price no?
There's portable UPS that are cheaper, but as I understand it, with this hat, you can replace the batteries yourself. So that's a huge plus.