Except when IO doesn’t stop the charge (it happens either because of Tesla issues or IO issues) and you’ve now done a couple quids worth of charging before noticing or IO sorts itself out. Not a huge issue really, but not one you’ll ever encounter with this setup.You don't seem to understand my replies - the car charges for a few seconds at most when I plug in & stop it.
I'm certainly not going to worry about less than a penny a month for this.