A6 Petrol 2.6 / 2.7 / 2.8 / 3.0 / 3.2i-1994-2004

XcellR8 - X56838 - 600CCA - 12mth warranty - DIN65LH

AC Delco Advantage AD56638 - 580CCA - 24mth warranty - DIN65LH

AC Delco Premium S57220 - 680CCA - 36mth warranty - DIN65LH

Bosch - S4 57013 - 770CCA - 36 mth warranty - DIN65LH