senseFly EBEE RTK Extended User Manual page 30

Quick start guide
If any of the cells is unbalanced, its associated LED will flash red during charging
until it is re-balanced. Charging can take up to an hour, depending on the charge
level of the battery and the required cell balancing work. See section 'Proper bat-
tery care' on page 154 for more information on maintaining your drone's batteries.
If you plan on performing a flight away from an Internet connection it is useful to
preload map tiles by selecting 'Download maps... ' from the File menu. More
details on how to take advantage of the various map sources available in eMotion
can be found in section 'Toolbar' on page 104.
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