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Discussion Starter #1
Time for a new battery in the 2014 x3
there are three choices:

61217598775 80AH 800CCA
61212353812 92AH 850 CCA
61217648317 105AH 950 CCA

Living in the cold climate - I'm leaning toward the 950CCA option



What are the criteria for selection (in BMW's mindset)? :dunno:
 

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Nuclear engineer
02/2012 X5 35d M57Y CPO 99K miles NOKIAN WR G3 12K miles
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17,583 Posts
Only the ampere-hour AH capacity is of modern interest. All other specifications are obsolescent to your modern BMW. Were they to become of essential interest then you have bigger problems than battery supply. Buy, bench charge, install, and register the highest capacity AGM battery that will fit its space. Of your list, the 105AH 61 21 7 648 317
 

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Nuclear engineer
02/2012 X5 35d M57Y CPO 99K miles NOKIAN WR G3 12K miles
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17,583 Posts
Thanks, that's the advice I was looking for. Thats the route I shall go!
My opinions / conclusions are not without their criticisms. Be sure and read what others may respond.
 

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100 Posts
If you put a bigger battery in your vehicle than what came from the factory, make sure that you update that info in the computer before you reset the IBS
 

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where da clutch at ?
BMW 128i Convertible E88 N52B Executive Package
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2,782 Posts
this is the only case of BIGGER is BETTER,
even if you gotta squeeze it in (that's what she said ;) )
 
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