Genuine OEM Volkswagen Battery With Charge State Indicator, part number 000915105AE. This battery functions as the main power supply for the vehicle's electrical systems and is equipped with a charge state indicator for easy status checks. It is installed in the battery tray. Genuine OEM batteries are built to precise specifications, guaranteeing consistent starting performance, optimal power delivery, and a durable lifespan, which is crucial for the reliable operation of all vehicle electronics.