We bought a 2009 Berkshire 390BH about a year and a half ago and have lived in it for a little over a year. The house batteries were replaced in January 2016. When plugged into shore power, I normally hear a single clicking in the battery compartment every 30-120 seconds. Last night after arriving in beautiful Mobile, AL, the clicking comes in bursts of 20-30 in a group, spaced 3-5 seconds apart. And then sometimes it goes several minutes without a peep.
I checked the batteries to confirm that they are topped off with distilled water (no problems there), and everything works properly in terms of lights and appliances. I ran the generator from the Tallahassee area to here, but once I plugged in the clicking started. The sound appears to be coming directly from the Blue Sea "automatic charging relay".
In addition to the noise driving me batty, I figured that any change in sounds/behavior is probably (a) not a coincidence; and (2) not a good sign. If nothing else, I'd like to make the sounds go away. They are distracting from the voices in my head.
Thanks in advance for any thoughts or comments.