Generator batteries

[socalgold2]

After reading a lot of sites I am concerned about my batteries. The chassis (engine) battery is CCA 765, and generator are RV/Marine MCA 890.. Even tho all 3 have been totally discharged at leat 6 times in the last week (due to electrical issue I'm working on), are these still "trust worthy"?
where is the "disconnect device" I keep hearing about located? I'm wondering if that may be my problem since all 3 batteries will go dead (sometimes in 3 hrs), realizing that there is an issue somewhere else I'm trying to locate. Both switches by door off. There are times when I hear a rapid clicking noise in the middle under dash or in engine compartment but unable to locate source.

2002 36' REX AIR V10 Ford

Thanks
Socalgold2

[01blueox]

Could be the solanoids that are controlled by the two switches are starting to fail. My chassie solanoid would click off and on until it finally failed and no power to anything engine wise and it is located behind the fuse panel left of the sterring wheel a real pain to get too.

[Steveoh]

You can check the problem is not the batteries by fully charging them, disconnecting the ground wires and monitoring the voltage. A good battery should stabilize to around 12.7 or so within 24 hours.