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Auto news of the week 1912 2019

par MCE TV

Electric cars: variable battery longevities A recent study looked at the longevity of the batteries of certain vehicles. 6,300 electric vehicles were analyzed by the American company, which drew up a table of loss of autonomy. Not surprisingly, the conditions of use vary the degradation of the battery. Too frequent recharges on fast charging stations, use in very hot weather or the presence, or not, of liquid cooling means that the loss of autonomy goes from simple to double, depending on the users and the brands. The annual degradation would be 2.3% of the battery capacity according to Geotab. Contrary to what some news suggest, cold is not the most dangerous variable for batteries. High temperatures are bad for batteries, which are all cooled (passively, or by liquid). This is why hot weather is not necessarily good for lithium batteries. Charging also plays a big role. And what most affects the lifespan of a battery is recharging by direct current and high power. It is therefore necessary to give maximum priority to recharging by alternating current, slower, and try to stay as much as possible in the 20% / 80% charge zone.

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