The energy supply of the drive, as well as the supply of all other vehicle functions, is provided by a specially developed lithium ion high-voltage battery, which again sets new standards in terms of energy efficiency. The intelligent heating/cooling system of the high-voltage battery ensures that energy performance (and thus the vehicle's range) are less affected by temperature fluctuations than it normally is with batteries of this type; thus, this makes a significant contribution to both the performance and service life of the cells. An 8-year warranty or 160,000 km’s is given for the high-voltage battery.*
Via the supplied charging cable, the battery is fully charged in up to 15 hours. The charging duration can be reduced to under 3 hours (to 80% capacity) with the optionally available BMW i Charging Station (30A version).
* For 70% of the charging capacity.