The lithium-ion high-voltage battery joins the two sections of the Drive module and is thus ideally protected against outside influences. A specially developed heating and air conditioning system ensures as few temperature fluctuations as possible, which significantly increases the service life of the battery.
The Battery Guard supports you by monitoring the high-voltage battery of the vehicle and notifying you if a deviation from the planned charging procedure occurs or, for example, if the vehicle lights have been left on for too long. This means that an unwanted excessive discharge can be avoided. In the event of an accident, the high-voltage battery is automatically disconnected, thus ensuring no further unwanted energy can flow into the vehicle.
The high-voltage battery of the BMW i8 carries a warranty for a period of 8 years or a distance of 100,000 km, whichever comes sooner.