Genuine OEM Volkswagen Battery Charger Fuse, part number 7H7937605. This small but critical electrical component is designed to protect the battery charger circuit from overcurrent, preventing damage to the charger and other electrical systems. It acts as a sacrificial device, breaking the circuit if current exceeds a safe level. Using a genuine OEM fuse ensures the correct amperage rating and reliable circuit protection, safeguarding the vehicle's electrical integrity and preventing costly repairs.