Yes i was thinking about that this morning
that's a lot of useless batteries consumption
This is my first year with the MAX system, how long can i hope to have my batteries last?
btw, i think i'll put back on the batteries to have the room's temperature fetchable
My experience with the previous ELV system (FHT) is that batteries, if of good quality, last for about 1-2 years. I think I changed them once a year to keep ahead of problems with empty batteries at times you certainly don't want them to occur (for example its freezing outside and you arrive in a cold house )