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Old 09-12-2011, 02:19 PM
Blk530 Blk530 is offline
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Location: Dallas, TX
Join Date: Jun 2007
Posts: 14
Mein Auto: 530i
Your car should run fine without registering it. But from what I've learned, our cars employ a smart charging scheme tailored for an absorbed glass-mat (AGM) battery. It varies the charging rate according to the age of the battery to keep it optimally charged. If you get a new AGM battery and don't register it, the car may over-charge the new battery and possibly shorten its life. If you end up getting a standard Pb-acid replacement battery, the car may under-charge it.

Take a look at the thread below, it has lots of info and shows you what others have chosen to do.
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