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      07-07-2017, 10:24 AM   #28
JimD
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Drives: 128i convertible
Join Date: Apr 2009
Location: Lexington, SC

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Quote:
Originally Posted by gjm120 View Post
This formula gets pretty close: RC *(0.449) + 12.4
Interesting. That would have said her old battery was about 75 amp hours and the biggest one I found in a brief search (160 reserve) about 85 amp hours. That would make the 80 amp hour rating the closest in both cases. Might be reasonable to just use the 80 setting for the normal range of batteries.
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128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09
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