I bought a new battery for my Z4
New one is Varta Silver Dynamic 85Ah
Installation took about 30 minutes. Did take backup power from my dads A6, so no reseting.
I think this is the largest battery that fits this roadster. It left about 1 centimeter gap.
Old Orginal BMW 55Ah / 480EN(A)
New Varta 85Ah / 800EN(A)
New one is Varta Silver Dynamic 85Ah
Installation took about 30 minutes. Did take backup power from my dads A6, so no reseting.
I think this is the largest battery that fits this roadster. It left about 1 centimeter gap.
Old Orginal BMW 55Ah / 480EN(A)
New Varta 85Ah / 800EN(A)