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Range of action of electric cars: ranges are below the manufacturer's specifications

Hans-Dieter Seufert
Range of action of electric cars
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The first test of electric vehicles showed that the Mitsubishi i-MiEV (to the test report) after only 77 kilometers (factory specification 144 km) with an empty battery, the Smart F ortwo ED managed at least 106 kilometers (factory specification: 135).

In the test, the Smart ED, which is currently being given out to interested parties in Berlin for 700 euros per month, and the Mitsubishi i-MiEV, which will be offered as a series model in Germany at an as yet unknown price, on the usual commuter routes tested.

Cold weather drained the batteries

However, the conditions were very battery-draining due to the cold weather. Both vehicles were troubled by the fact that electric heating and increased driving with lights increased their power consumption. Both vehicles switched off the heating for the last ten kilometers in order to even create the reduced range. That quickly made for frosty temperatures.

Motor press with cable damage

Another result of the test: The allegedly simple charging of the batteries at the house socket has its pitfalls. For example, an empty drive battery loads the power grid for several hours with around 2.8 kW. The in-house electrical system at Motor Presse Stuttgart was overwhelmed by this, the connection of a fuse strip burned through. Only after laying new lines did the charging work without any problems. For private households auto motor und sport therefore recommends that an electrician first check the performance of the domestic cabling.

The test also cleared up the expectation that electric cars are more environmentally friendly. In harsh winter conditions, the costs for 100 kilometers for the i-MiEV were 4.38 euros for electricity, the Smart consumes a little more at 4.48 euros. This means that the energy consumption is hardly below that of the more economical diesel variants, albeit significantlyhigher purchase prices. In addition, the measured consumption with the current electricity mix in Germany means CO2 emissions of 125 or 128 grams per kilometer.

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