I posted the 185RC info in post 12, what applies to automotive applications.

If this was a marine of aircraft forum, the AH would matter.

Knowing the AH rating of an automotive battery is like knowing the MPG at 2 mph, you may have the info, yet never actually need or use it.

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!