The Genuine BMW Battery-Adapter Piece (70 Ah) - 61216911025 is a high-quality adapter piece designed specifically for BMW vehicles. It is used to connect the battery to the vehicle's electrical system, providing a secure and reliable connection. This adapter piece has a capacity of 70 Ah, making it suitable for use with a wide range of BMW models. It is made from durable materials and is designed to meet the strict quality standards of BMW. This battery adapter piece is an essential component for maintaining the proper functioning of your BMW's electrical system and ensuring reliable performance.