She’s just had her 75K service, and I asked for a new battery, just because it’s hit the four year mark and I’ve had battery issues in past cars. I asked for the exact same battery (in writing), but on inspection I see the battery is totally different in terms of capacity. Old one was ACDelco ACH 92456804 with a CCA Rating of 460. New one is ACDelco S57220 with a CCA of 680. Question is - is this a problem? From the research I’ve done this suggests the battery may not last as long, and higher CCA is not required in warmer climates, and for a V8 which requires less power to start. Should I worry? I really did just want the same battery as original.