ADAC compares fast charging capability of e-cars

Posted by Christian Pfäffli on

With electric cars, not only the range plays an important role, but also the combination of good quick charging capability and efficient consumption. Only then can an electric car be used for longer distances. The automobile club ADAC describes an e-car as suitable for long distances if it has an Eco test range of at least 300 km and can recharge at least 200 km range in 30 minutes.

Although the fast-charging technologies of the vehicles are getting better and better, vehicle manufacturers often make only vague statements about this. Accordingly, consumers need to know the quick charging behaviour of an electric car. This helps both with the purchase decision and with route planning. ADAC measured the power consumption of five vehicles during a quick charge process and determined the regained range after 10, 20 or 30 minutes.

The result: the charging strategies of models from different manufacturers vary greatly. The Audi e-tron is most convincing in the ADAC test, charging constantly at a very high output of almost 150 kW in the relevant range (10 to 80 per cent battery charge level). The Mercedes EQC, on the other hand, continuously reduces its charging power even at a battery level of almost 40 per cent. The Opel Ampera-e, Renault Zoe and Nissan Leaf generate much lower charging power. They are therefore less suitable for long-distance driving. For example, the Audi e-tron recharges 113 kilometres of range within the first 10 minutes, while the Nissan Leaf recharges only 40 kilometres. After 30 minutes charging time, the e-tron manages 305 kilometres with the charged energy, the Nissan Leaf 124 kilometres.

In future, ADAC will use the e-car tests to determine the charging curves and thus the recharged ranges of the electric cars as standard. This will enable consumers to better compare the e-vehicles in terms of their rapid charging capability.

The ADAC strongly recommends that consumers order the quick-charging function as well, as it makes an electric car much more flexible in everyday use. When on the road, the battery should only be fast-charged to around 80 per cent, as charging then takes a disproportionately long time. Manufacturers are called upon to provide consumers with better information on fast-charging technology and not to charge extra for the fast-charging socket. It should now be part of the standard equipment.

Source: ADAC - press release from 19.02.2020


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