I charged the Funky Cat to 100% a couple of times a week or so ago, and the results were very similar at 167 and 168. Considering it is cold, and I have been using the heater (and pre-heating) in the cold weather, these predicted ranges are better than I would have expected.
However on the past two charges to 100% the weather has been much colder and this has impacted on the predicted range.
These were lower at 157 and 155.
Both times I charged using a standard 13amp three pin socket.