As well as distance that some batteries lives are gauged by.

My ebike shop owner said, if I need more distance, he can add another battery with a switch. Otherwise, a bus or reroute on flats may work. Try to power down with tail winds and streamline your clothing as a practice.

Try to use the lowest power setting, even zero, and off and appropriate gear, when possible. On cooler days or times, you can expend more leg energy. It is critical you think of preserving battery power all the time depending on conditions.

You can even have fresh batteries on chargers at your turnaround destination. In the future, longer lasting batteries may be available.