After logging daily voltage data from August and September I let the Lincoln dealer have a look. My confidence is not 100% after the service writer said the following:
"These cars have generators, not alternators" What? It's a 2015 2.0L turbo.
"We pulled several body module codes that indicate a low voltage condition". Well, yes. That's why I'm here.
The Service Manager called at end of day with the following:
"The battery tested fine several times" even though last month's QuickLane receipt says "Battery Weak". The data I provided proves the battery will sag from 100% to 30% in 2-3 days (getting worse).
"There is virtually no draw...like .02 to .03 OHMS versus Ford spec of <.05". That's good news, but he said Ohms, not Amps?
Update: With no draw detected they had no TSB's or prior knowledge to go on. And without being towed in dead, they left the battery in place. I do have heat-reflective material to cover this battery, and the next one that I buy. Voltage drop (at rest) is still about .1 volt per day regardless of what their draw in Ohms says.