How much time do I have to register a new battery after I install it myself. I want to take it to a shop to get it register I have a 2011 BMW 750LI. I plan on putting the same battery type back in
If you do it within a few days or couple of weeks you will be fine. It is a problem when the battery registration is never registered. Especially if the battery capacity or type is different than the previous battery.
You can register BMW battery yourself btw.