What speed are you driving at? My route finder says its about 465 miles trip from Anglesey and I have it set to the max speed for each type of road, and it thinks for your journey round trip, with no breaks for refuelling of any kind would be 9hrs 51 minutes
I reran ABRB and now it says 11h 14m including 2h24m for 6 charges. It picked a different route too. The thing is dynamic, but it must have made an error on the previous run. I was trying to hand optimise some of the choices and must have hit a bug.
That is with the default maximum speed set to 75. I know better than to do a long trip with 75mph cruise. Speed eats range because of i**r losses in the battery.
I don't have the premium subscription that includes real time traffic.
The Sat Nav in the i3 does that and will adjust available range according to traffic speed and terrain. In practice it is more realistic than ABPR and I use to know if I can actually reach the next charger under current conditions.
I ran it again with Vmax set to 60mph. Came back with 11h5m and a different, longer route. Huh.
and one last time at 56mph / ecopro+ mode. 11h 9m with 5 stops to charge instead of 6. In practice, this would likely be the quickest.