To increase the power assist level: Press the large plus [+] button in the upper-left corner of the display
once to increase the power assist by one level. The power assist level, ranging from 1 to 5, is shown in
the lower-right of display. At the highest power assist level of 5 the Firefly travels at 12 mph (19 km/hr).
To decrease the power assist level: Press the large minus [-] button in the lower-left corner of the
display once to decrease the power assist by one level.
To turn the headlights on or off: Press the headlight button on the right side of the handlebars, located
to the left of the (black) forward throttle. The headlights will stay on until the button is pressed again.
To ring the bell: Pull the small lever on the bell, which is attached to the left brake lever.
To charge the battery: Plug the supplied battery charger into the charging port located on the right side
of the battery near the bottom of the battery. Fully charging the battery takes between 3 and 5 hours.
Remove the battery from the charger when it has finished charging. Never leave the battery charging
overnight or leave the battery unattended while charging.
To charge or use a personal device with the battery: Plug the device into the USB port located on the
right side of the battery near the top of the battery.