Electric cars can lose over one third of the electricity just during charging, depending on the model.
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Germany’s online Blackout News here reports: “Charging losses for electric cars ranges from 9.8% to 38.2%, depending on the model.”
That means, on some models, nearly one third of the electricity to charge a lithium-ion HV battery gets lost. When charging, the “current flows against the internal resistance of the battery, generates heat and is lost.”
Higher costs, time wasted
Losses occur when AC current gets converted to DC, but also in the cables and connections. “These losses have a direct impact on charging time and costs. A 20 percent loss means a 20 percent longer charging time and 20 percent higher costs,” reports Blackout News.
Loss ranges from 9.8% to 38.2%
The Kia e-Soul models has the lowest losses of the cars tested, only 9.8%. Tesla’s Model Y Long Range saw 14.8% of the electricity for charging end up being lost.
The worst performing – losing more than quarter of the electricity – were Polestar 2 78 kWh AWD (27%), Smart EQ fortwo (29.2%), and the Renault Zoe Z.E. 50 E-Tech (31.1%).
Renault Twingo ZE loses 38%!
The worst was the Renault Twingo ZE with a whopping 38.2% of the charge getting lost. Data Source: Praxis Elektroauto
The efficiency was determined by calculating what was put in and what actually came out.
As a comparison, to get idea how bad the problem is, imagine spilling one third of the gasoline or diesel while filling your internal combustion engine vehicle. That’s expensive and a real waste.
During DC charging, there are only between 5 and 10 percent losses, depending on the charging power and battery system.
See entire article here (German)
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via NoTricksZone
January 7, 2024 at 12:02PM
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