Over the 3 years I had my Kona 64 I averaged 4.4 – I did less than 10k miles – most local but a few long upto 250mls
My current Elroq 85 is currently averaging 4.0 – the hot weather effected the range more than I expected.
I have made one long journey 250mls, which I am repeating tomorrow – will update after the first 1000 miles.