My F25 has experienced battery depletion for over six months. It is presently at the garage for the third time to ascertain the cause of the issue. The initial alteration of the relay ceased the drain, resulting in a noticeable reduction in power consumption. I continue to have the issue of "increased battery usage when stationary," which occurs intermittently without a discernible pattern.The vehicle was returned to a highly regarded independent garage, which was unable to repeat the issue. It has since been referred to an auto electrician, who likewise cannot reproduce the fault. I am now considering the possibility that the automobile remains in an active state while at home, although I am uncertain as to why this occurs. Is there a possibility of Bluetooth interference affecting the system's connectivity or my home Wi-Fi? I possess two inexpensive Bluetooth battery monitors in close proximity on a camper; may these be the source of the issue? I am considering unconventional possibilities; however, what other factors could contribute to it at home? Thank you.