12/30/11. Baltimore, MD. Just replaced original (7 yr) battery on my 2004 X5 3.0. Dealer (Stealer) wanted $180 + tax for OEM 640CCA 3 yr waranty made by DEKA + $60 installation. Shopped around, found a cheap $109 + tax. 3 yr. waranty Everstart Maxx 94R 765CCA made by Johnson Controls, self installed (not too difficult), works fine so far. All my Walmrt batteries lasted at least 4 yrs. Saved $135.