Why does ABRP suggest a charging stop?

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ABRP is still very fond of motorways which are the routes I didn't select. Those are without a charging stop and a calculated consumption of 34,8 kWh. The route I often prefer is 18 km shorter with an expected consumption of 30,6 kWh. But for this route there is a charging stop planned. Why? And why isn't there an option to have a shorter or more economic route? Without motorways wouldn't make much sense, as it is quite difficult to cross the river Elbe without using motorways.