My battery died yesterday morning. I jumped it with my SUV and let it run for 15-20 minutes. It started right up when I connected it to the battery and everything. No issues there. I then go to start it this morning. Dead. Again. Super dead. However this morning, my remote to lock/unlock the mini wont work, the key will not unlock all the doors and the dash toggle wont work either. Any ideas? please say its just the battery....

 

How old is the battery? Pretty simple to bring it into an auto parts store that offers battery testing if you don't have a meter and knowledge to test it yourself. Otherwise alternator or improper grounding can be thrown into the diagnostic mix.