There is a constant drain on the battery and overnight the battery can go dead. I replace the battery every 6 months to a year and have been doing that ever since we purchased it. The dealership wants $250 to diagnose it. It’s been a problem from day 1. Even when we took it to get serviced and they kept it overnight — the same thing happened at the dealership, but they just ignored it. That was when it was under warranty. I read on the internet that several people have this same problem. I feel this should be a recall. I have a 2017 Ford Platinum