Maintenance and repair of the eBee
At rest, the displayed air speed should be close to zero (it may drift up to about
2 m/s). When blowing in the pitot probe there should be an air speed indicated in
the ‘Flight Monitoring’ tab of eMotion that should easily reach values above 8 m/s.
Check 5: Ground sensor
The ground sensor is composed of a high-speed optical sensor and a lens assem-
bly. The lens assembly must be clean and unobstructed for the sensor to work
correctly.
7.4 Repairing the eBee airframe
Small repairs of cracks in the airframe can be done using contact glue such as
UHU® POR glue. Take care to use only contact glues that are specifically designed
for Expanded Polypropylene (EPP). If you have doubts about the extent of the
damage, always contact your eBee reseller to verify if the damage can be easily
repaired by yourself or if you need to send your drone in for repair to.
Caution: Never fly your eBee if it has cracks in the airframe.
7.5 Proper battery care
Proper care of your eBee’s battery is important to prevent damage to your drone
and to maximize flight time. With a fully charged battery, the drone will fly for
about 45 minutes. Frequent altitude changes, presence of wind, use of old bat-
teries and/or frequent photo acquisition may significantly reduce the flight en-
durance. Batteries perform better at medium or high air temperature and it is
normal to observe shorter flight times in cold weather.
The eBee is powered by a Lithium Polymer (LiPo) battery composed of three cells
connected in series. A single LiPo cell can have a range between 3 V (empty) and
4.2 V (full) in its normal operating range. This results in an empty battery voltage
of 9 V and a fully-charged battery voltage of 12.6 V. A well-balanced and healthy
battery should have all three cells at a voltage very close to each other and be-
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