After thinking about the matter and listening to your opinions, I have come to the conclusion that there is no point in plugging in the whole installation. Therefore, looking at the installation, I would like to plug in the house lighting, roller shutter control and monitoring. I would like to install a 3000VA UPS, preferably APC, as I have heard that the rest are some kind of pretend UPS. Is such a solution worth using anymore. I would connect additional battery packs to the UPS to extend the back-up time. I'm just wondering how long the UPS will charge them because I can't find anything out from the manufacturer's website.
What is the best choice for this APC 3000VA model? Because I see that there are different types of them.
What is the best choice for this APC 3000VA model? Because I see that there are different types of them.