Hi Paul,
Sorry this took a while.
I attach file JKM440 south.sam that shows the same outcome after running the standard simulation.
Ie min SOC 10%, max S)C 80%, and the 'Lifetime hourly data' plot of Battery state of charge shows values in excess of 80% SOC (see attached XL).
(Export into grid and import from grid has been disabled on purpose.)
Kind regards
Dirk