Thanks for sharing your cautions on being prepped for 'Just in case!' situations, and your results.
I did have a question about the voltage. Those were 'under load' results (As I assume you did not power off the coach demands, and let the batteries 'rest' before taking the voltage readings reported?). If so, then your bank may not be as low as indicated. Would be interesting to see if you were to repeat this test long enough to again get the lower voltage readings of a 'working' battery. Then power off all that you can, even do a full disconnect of the battery cable from the battery, and let the battery rest for say at least an hour. Then take the voltage reading. And if wet (I have not looked at your other info to see if they're wet or AGM.), get out the turkey baster and see what the Specific Gravity readings indicate. Suspect they'd be higher then.
Thanks again for the info sharing, and good luck on ongoing contingency preparation. I always tell my family and friends 'Safety, and safety prep, does take work and planning!'.
Best,
Smitty
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07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
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