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      11-26-2012, 06:01 PM   #2
Rshane
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Drives: 2011 E92 M3
Join Date: Jul 2010
Location: San Antonio, Texas

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Googled this real quick:

http://www.tirereview.com/article/86...batteries.aspx

Bottom line, batteries are "entombed" in the assembly, you can't replace them. However, life expectancy is 5-12 years.
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2011 Le Mans Blue M3// Black extended Novillo w/ Blue Grey Aluminum trim/DCT/ZTP/ZCW/ZPP/ZCP Premium Sound ///Akrapovic Evolution Exhaust

2012 Le Mans Blue 135i M Pkg DCT
2013 Ford F150 FX4 Supercrew