With an electric car, you should really plan your itinerary in advance, depending on the charging options you’ll find along the way. ABetterRoutePlanner (ABRP) and Chargemap are useful apps for this.
Currently, you cannot yet enter that you are using a MobilityPlus charge card. So double-check in the MobilityPlus app whether the proposed charging stations accept your MobilityPlus charge card.
If you book a hotel to break up your trip, check whether there is a charge point at the hotel and reserve it if possible. The hotel may even offer you free charging!
Drivers of a company car should check in advance whether charging with the employer's MobilityPlus charging card is allowed abroad.