Yes, that reading comes from the converter. Any time you're plugged into shore power, the "battery status indicator" will show all light illuminated. The only time it will give you a "battery only reading" is when you are disconnected from shore power and ONLY the battery is providing voltage to the 12 VDC system.
If you are connected to shore power or to a generator, then all the wiring in the 12VDC system will be at 13.6 VDC provided by the converter, so the "battery status indicator" will interpret that as "fully charged battery" and light all the lights.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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