^ for 2 years, I've only driven the thing maybe 100mi. per week. I've had the high battery drain issue twice and it was completely random when it happened... same short trips, same everything. It can't just be "not enough charging with short drives". It would be happening to me much more frequently if so.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr