We added a pedal-assist ebike motor to our camp's quad bike (2x2 tandem; 4 passengers). The high Ah capacity was to support using the motor and accessories (at

We added a pedal-assist ebike motor to our camp's quad bike (2x2 tandem; 4 passengers). The high Ah capacity was to support using the motor and accessories (atv soundsystem, lots of "dotstar"-style LED strips) periodically throughout the day and night. We had two batteries and two sets of solar charging systems: a large, heavy 270-watt panel at camp and 2x 100-watt flexible panels for the bike. Bike panels extended the range of the bike through a combination of powering accessories during the day, recharging the battery (when not using the motor), and reducing the load on the battery by providing supplemental power directly to the motor controller (when using the motor). "750" watt motor, ~200 w of solar, so not really possible to drive without also using the battery. Meanwhile, the spare battery is charging at camp and also available for light loads like phone charging and some lights at night. Every day or two we swap the batteries such that the bike has the more fully charged one.