Go ahead and top it off! You are only charging to 80% capacity as there is a large software maintained capacity buffer. The only folks who should be concerned are BEV owners - and the first Niro BEV has still not been sold in the US.Another factor in battery longevity is number of charging cycles. Right now I plug my car in after every days use whether I have 5 or 20 miles of range left. Should I be topping off the 20 mile range if I don’t think I’m going to need it the next day? Any thoughts?