I would suggest if you are driving normally with music on and comfortable in terms of temperature – heated seats on if needed – if you have them – with temperatures at the moment – say 6 to 8 – anything above 4 miles per kWh I would be happy with.
Any journey below 8 miles and the range always seems lower.
I still think conditioning battery from low by 3 pin plug ie slow is the way to go.
I know some on the forum have solar panels and can charge even slower and it does appear to give them the best ranges on this forum.