With an electric car, you should really plan your itinerary in advance, depending on the charging options you’ll find along the way.
Do you drive a Tesla? Then, the car automatically plans the best route via the Tesla Superchargers.
For most other EVs you have to do it yourself. ABetterRoutePlanner and Chargemap are useful apps for this. The MobilityPlus app enables you to double check whether the proposed charging stations work with 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.