I want 30 cameras but I can afford maybe 2. The battery has to be good enough to continue recording for say an hour after the burglar switches off the power and

I want 30 cameras but I can afford maybe 2. The battery has to be good enough to continue recording for say an hour after the burglar switches off the power and unplugs the wifi. The lack of night vision is a good point. Maybe a thermal vision adon? https://www.flir.eu/products/flir-one-gen-3/ https://www.flir.eu/products/flir-one-gen-3/ Some battery led lights that switch on if the power goes out would also help. I tried an app that turns the phone into a security camera but it just lost connection after a few hours. I suspect its just not a design goal.