Lots of my radiator valves (HR92) begun alerting at low battery at very similar times recently and those zones with one radiator in them were easy to handle.
I have a couple of room with multiple HR92s in them though and cant work out how to identify which one is asking for batteries.

It seem that while an HR92 will alert on low battery it still displays wo bars of battery on it's little screen - regardless of the battery being 2 weeks old, or about to die.

Is there some way to identify which one is asking for battery which I'm missing?