I'm using the new Fibaro radiator valves. Each has its own virtual stat and a virtual switch to activate the boiler. It has worked fine over winter... except when one of the batteries gets low. If the charge gets too low when the valve is calling for heat, the heat stays on full blast until I realise the problem and then recharge the valve... not ideal.
My solution is to run a micro usb charger to each stat, plugged into a z-wave socket that turns on when the charge level is low.
My problem is that I don't really understand how the rules deal with charge states or how the timers work.
I've put together the attached rules but I don't know if they will work.
Any help or advice would be very much apreciated