DC fast chargers, also known as Level 3 or L3 chargers, charge with a direct current power supply from 200 to 920 V DC. L3 chargers require specialized infrastructure to handle the high voltage safely. ECO chargers can charge EVs in as little as 30 minutes or less and are typically reserved for public access areas and large commercial EVs.

The new high-voltage technology enables complete battery systems where both the vehicle and the battery with charger are fully integrated. This is the foundation for both fast charging and onboard charging.

High voltage also facilitates energy storage, both for cable dimensioning reasons and for the fact that the conventional 3-phase main voltage 3 x 380-480V are closer to the corresponding rectified voltage 400-800VDC.