4
Battery Life
The Duo contains a rechargeable lithium-ion battery. With normal use, a fully charged Duo will run for approximately 5 to 7
days before needing to be charged. To check the battery level of the Duo, see the chart on page XX.
When the battery level is at 20 percent and at 10 percent, the Duo will vibrate and a low battery warning will appear in the
Duo display to notify you that the battery needs to be charged. The Duo will shut down when the battery level is at 5 percent.
IMPORTANT: Make sure that the Duo syncs to the iFit app when the battery level is low; the data recorded on the Duo
will be deleted when the battery level is at zero percent.
Charge the Round Duo
To charge the Duo, first lift the lower edge of the case out of the cradle
and rotate it to the position shown in the upper photo. See ROTATE THE
ROUND DUO or FLIP THE SQUARE DUO on page 5.
Next, insert the cable into the charger, and orient the charger as shown.
Then, position the two pins on the charger against the two contacts on
the case, and press the case into the charger as shown in the lower
photo.
Then, plug the charger into a USB port on your computer. It will take
approximately
4 to 8 hours
for the Duo to charge completely.
Note: To charge the Duo more quickly, plug the charger into a USB wall
adapter (not included) or a USB car charger (not included).
To check the battery level while the Duo is charging, look at the LCD
screen and press any of the three buttons. When the Duo is fully
charged, the LCD screen will display a battery level of 100 percent until
the charger is unplugged.
To remove the charger, first lift the two latch arms off the case.
Charge The Duo
