Sorry about my truncated last post, couldn't get it edited.
The test you did was volts, which is ok and gave you some data. With a 0.7v raise when disconnected is quite large if you had all interior items turned off manually when testing with disconnect on and off.
The proper test would be an amperage test as described earlier. I can cover that again if you wish. At this point, it's clear you should always use the disconnect when not in or using the coach.
An amperage test would give you accurate info as to the actual power draw (volts is only pressure, not flow) which would tell you the power the safety systems were using. You could also measure the power input by the solar panel to really see if it can keep up. However, this is getting down to the nitty gritty and you can certainly figure this out over time just checking voltage.
John & Clare - Buck & Zeus - Jack & Husky
2008 Fleetwood Bounder 38P
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