Three different parts produce the same symptom, and guessing between them is how people buy a battery they did not need. A proper test loads the battery, measures alternator output under demand, and checks the draw on the starter — twenty minutes that tells you which one it actually is.
Rochester winters are hard on batteries specifically: cold thickens the oil the starter has to turn while cutting the battery's available power, so a battery that was marginal in October is dead in January. If yours is over four years old and cranking slowly, that is the warning.
Describe what the car is doing — the noise, when it happens, what changed. Half the diagnosis is in the description.
What actually failed, what it costs to fix, and what happens if you wait — before any work starts, not after.
The repair gets done and you get told why it failed, so you know whether to expect it again on this car.
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