When you first see a low battery indicator on your tracker, you have about a day of battery left.
Charging may take up to 2 hours, depending on the current power level. Your fully charged
Fitbit Charge 2 has a battery life of up to 5 days. Note that battery life and charge cycles vary
with use, settings and many other factors; actual results will vary.
For more information, ask the Community or visit Fitbit Help.