Time for a new battery?

nope, batteries are changed

I have some large honeywell digital humidity/temp displays and some smaller radio remotes too that you see as described with NiMH rechargables - AA 1.2v isnt enough for those screens.

The battery voltage drops with regular alkaline AA's also when its cold outside and then they do that same ..gotta look those things from an angle routine to read the displays. Yet the radio still sends the signals just fine.