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      11-13-2012, 12:05 PM   #5
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Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

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Originally Posted by sovietjet View Post
Thanks for the replies. I think I will just get a new battery. This morning we had our first day with below freezing temperatures. When I parked the car at work I turned it off (but dash and screen was still on) and spent a couple of minutes gathering all my stuff. In those 2 minutes the "low battery" warning came on. I think I should just get one. Where is a good place to get a OEM battery from? And I read here that I need to register it...I assume this can be done at a dealer but are they gonna charge me? I still have CPO extended warranty.
AFAIK the OEM battery is only available at the dealer. Yes, the dealer will charge to register it.

People have gone other routes as far as using other brands. Personally, I would stick with OEM. These cars can be super picky when it comes to the electronics.