THe Triad is old and simple technology and will dewater your batteries. It didn't seem to alter its voltage depending on state of battery. I just changed mine out of my 77 coach for a Progressive Dynamics 9180 with the extra charge master controller. So far it seems to be doing a better job and it is certainly less of a boat anchor. My Triad seemed to run constantly at over 14 volts.
My charger is wired to directly power the house fuse box and the house battery. To charge the chassis battery it is necessary to turn on the "Merge Battery" switch. If you have that switch in the "on" position and you are still getting the voltage you reported that it may be that your "merge" solenoid needs replacing. Being constantly in the closed position the contacts in this solenoid tend to carbonize or something similar. I tore apart one that wasn't allowing much current to pass and found the contacts were black. In talking with Newell I was told that this was normal and periodic replacement is necessary. The constant duty solenoids are about 35 dollars.
|