Yeah, I have a car battery connected to an UPS. It helps but I still lose internet if the power goes out where the main antena is.
I also want to invest on something that will keep the refrigerator going, that is like the main thing we don't want to lose power for too long
If you don't know how to set up a system by buying the different components, a power station with a solar panel is the cheapest and easiest option.
In my case, I don't usually lose the internet, but this time was very different