This Bosch Calcium Maintenance Free Battery replaces the original equipment unit on Volkswagen Golf AWD models built from 2017 to 2025. Vibration-resistant plate construction is important for vehicles that see unsealed roads. Calcium grid technology reduces water loss and self-discharge, which suits vehicles that sit for weeks at a time. The AGM construction handles the deep cycling created by stop-start systems and accessory loads. Rated at 850 CCA with a reserve capacity of approximately 120 minutes and 70Ah nominal capacity. Case dimensions and terminal layout match the factory battery tray and clamp. Fitting is a straightforward workshop job and no coding or calibration is needed. This part is a common wear item on high-kilometre Australian vehicles and is worth replacing in pairs. We recommend fitting by a qualified technician and following the manufacturer's torque specifications. Sold new with 12 Months warranty cover and full technical support.