Electric car with 17 percent loss of capacity
Time bomb battery: Select electric cars after only three years?
Mitsubishi The Mitsubishi I-Miev (identical with Peugeot Ion and Citroen C-Zero) can be bought since the end of 2010, has a range of 150 kilometers and costs 34 390 euros.
Site editor Sebastian Viehmann
The Austrian ADAC measured the battery capacity in an electric car long-term test after three years. Result: It shrank by 17 percent – and thus also the range. Buyers of e-cars should therefore pay attention to the correct guarantees.
The lithium-ion batteries of electric cars lose significantly after three years. This can be concluded from a long -term test that the OAMTC Automoblic club – the Austrian ADAC counterpart – has carried out. The OAMTC examined an electrical Mitsubishi I-Miev from its own long-term test fleet. "In 2011, among other things, the reach of the I-Miev was first measured by the Rollen test bench of the Vienna University of Technology. Three years and 40.000 actual road kilometers later the test was repeated. The result: The usable battery capacity of the vehicle has dropped by 17 percent", So the automobile club.
All Stromer affected?
"This means that in everyday life you only get 90 instead of 108 kilometers before the battery has to be charged", So OAMTC expert Steffan Kerbl. The same picture results in the test of a fictional constant trip at 50 km/h, which is also carried out on the roller test bench. "Instead of originally 165, the range is only 137 kilometers after three years. Due to similar battery technologies, it can be expected that the loss of capacity in other manufacturers is similar", so guy.
Compared to the Austrian news magazine "format" a Mitsubishi spokesman was surprised by the test result. "At 100.000 kilometers driven is likely to have such a drop in performance, but not at 40.000", such a spokesman. So far, no complaints have been received from customers. "As soon as we discover abnormalities in charging capacity, we will follow the matter, of course, but that hasn’t happened yet", quoted "format" The speaker on. However, he admits that too many quick loads could be a cause of the loss of capacity.
A corporate spokesman also informed Site that the prescribed battery maintenance had not been carried out in the vehicle concerned. This assumes that an electric car will lose a maximum of around two percent battery capacity per year.
Guarantee ensures against loss of range
In any case, the guarantee conditions and maintenance instructions from the manufacturers should take a close look at for buyers of electric cars. After all, they have long since reacted to the problem and strive not to pass on the risk of capacity to customers. BMW, for example, gives a guarantee of eight years or 100 on the i3 lithium-ion battery of the i3.000 kilometers. Renault promises a free exchange for the ZOE in less than 75 percent of the original battery capacity, which shifts the risk of lifespan from the buyer to the manufacturer.
Tesla has only recently changed the guarantee conditions of its electric sedan model – in favor of the owners: from now on and also retrospectively for all models ever produced, the California manufacturer not only grants a guarantee of eight years, but also on the entire drive. And without a mileage.
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