Running the engine with heavy electrical loads switched on (lights, blower, rear defroster, heated seats) and watching whether charging voltage stays stable. Without a current measurement it is an observation, not a charging-output test.
2012 MINI Cooper (R56)
A0A9
A 2012 MINI Cooper R56 no-start complaint investigated with repeated battery tests, terminal cleaning, overnight monitoring, cranking voltage and charging load checks.
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Initial diagnostic: $150 for one primary concern. Additional concerns or complex diagnostic work may require additional time and charges. Standard labor rate: $150 per hour.
Florida MV Registration #MV114761