From the article:
An auto club in Germany that claims 21 million members ran some controlled charging test electric vehicles to see how efficient that process was. The results put another nail in the value coffin. Not only are they expensive to buy and own, but the average charge also wastes up to 13% of the electricity.
Put another way, the consumer is charged for all the electricity required to fully charge the battery, which is as much as 13% more than the battery can hold.
So, imagine pouring two gallons of gasoline on the ground every time you filled a 20-gallon tank. People would lose their collective minds. But that will be standard for every charge of every vehicle in the utopian electric fleet of the future.
ADAC’s Ecotest calculated the kWh needed to fully charge a range of electric vehicle batteries.
The result of the test under the same conditions for all electric car models: E-car drivers have to plan for a particularly large amount of power loss for some models – but everyone has to pay extra. According to the ADAC Ecotest, a 100 kWh battery in a Tesla Model X100D actually needs 108.3 kWh. The Kia e-Niro Spirit has 72.3 kWh for a 64 kWh battery. The Jaguar I-PACE EV400 also needs at least 10 kWh more for a 90 kWh battery.
With electricity prices scheduled to double in New Hampshire (as an example) and with the cost of EVs still out of the range of most middle and lower-income families, throwing money out the window with every charge might just as well be another tax
this must be similar how a car alternator charges the battery at 14 volts for the 12 volt battery i guess
Yes. You need higher voltage to get the electric charge INTO the battery. If you come at it with 12 volts, the battery says "I will see your twelve volts," and there is an impasse. You can think of it like tire pressure. You need to have higher pressure air in order to get it into a tire at 35 psi.
The loss occurs primarily when converting AC power to DC power. You take 10 units of AC power put it through a transformer but only 9 units of DC power comes out. It's much easier to generate and distribute AC power, but all batteries store that energy as DC.
The charging a 12V battery with 14V is just how charging works. Think of voltage kind of like water pressure, you won't be able to push energy into the battery if the battery has higher or similar "pressure".