Yeah, uh, BMW sucks and so a lot of auto makers. Instead of making an additional menu in the ridiculously over-complicated dashboard computer system, I had to buy a $150 tool that can do a "battery registration" so that the smart alternator knows that there's a new battery installed and not to charge it so much. You don't have to buy BMW brand batteries, though. But Jesus BMW, get over yourselves. There could be a button right by the battery in the trunk to do this, it doesn't have to all be locked down.