BMW Key Fob Not Charging: Diagnose and Fix It
A BMW key fob not charging usually has a dead replaceable coin cell, not a charging fault. Older sealed BMW keys use an inductively charged VL2020 battery, while Comfort Access and many modern blade-style keys use non-rechargeable CR2032 or CR2450 cells that must be replaced. Display Keys charge separately through USB or a wireless tray. […]