Thanks to its 800V architecture, it supports DC fast charging up to 320 kW. A 10-minute charge can add up to 325 km of range . AC charging is supported at up to 11 kW . For buyers considering the Mercedes-Benz CLA Electric, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.