After getting a jump start at work, I made my way to Autozone where they tested the battery and got a "Charge and Retest" message. They offered to charge it for me, but said I had to pull it and bring it inside. At 8 PM, I didn't feel like that was an option. I don't think they realized what was involved.

I picked up a load tester and tested the battery when I got home. It tested good at rest and marginal under load. The charging system tested OK.

I left it on the BMW cigarette lighter trickle charger overnight and locked it. I had 12.2V this morning and it started easily.

I'm going to bring it to the place where I purchased the battery for testing since they can replace it under warranty if it fails testing.

Plan for this weekend is to remove remaining third party electronics (except the Dension Ice Link) and perhaps fuse 74 if I can live without it (not sure if I'll be able to sync Bluetooth and use handsfree without 74).