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      09-05-2011, 01:59 PM   #2
PhillyNate
BMWCCA #405750
 
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Drives: 2011 E92 M3 ZCP
Join Date: Apr 2011
Location: Philadelphia

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The 2011's and maybe earlier have a "glass" battery, the 3 letter acronym escapes me right now. I think it's AGM. Anyway from what I've read you have to use a particular type of trickle charger on these types of batteries. I think that CTEK is the right kind though. Do your research. Good luck
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2011 Alpine White BMW M3 6mt ZCP Coupe (reluctantly sold 06/06/14)
2008 Alpine White BMW 328i 6mt Coupe (retired 06/21/11
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