Just to answer @andyk’s question in the now closed thread:
“Just want to jump in on this conversation as a fellow electric vehicle driver…
Which charge network were you using and how do they charge? (I mean in terms of tariff)”
I was using the Innogy network in Germany, https://www.innogy-emobility.com/Elektromobilitaet/ueber-elektromobilitaet/neues-angebot-an-ladestationen using their e-charger Android app.
They have roughly 5000 chargers, mostly older (22kW off the highways, 50kW on highways, with a handful of newer 150 kW chargers).
They charge by the session. One session costs 7.95 EUR. This sounds attractive if you have a large battery. I can charge about 70 kWh per session, which would work out at just a little over 10 ct/kWh. At Tesla superchargers, I would pay three times as much.
While I agree with you that they should only reserve that amount before the session starts, that’s not how it works. First you pay 7.95 EUR, which actually disappear from the underlying account. Then you get to test if the charger actually works. In my case, it did not work in 13 out of 14 cases.