senseFly eBee X User Manual page 32

Using your eBee X
When disconnecting, do not pull on the cables. Hold the connectors and pull:
Charging your battery for storage
Keeping LiHV batteries, like those used in your eBee X, fully-charged or discharged
for long periods can reduce their performance and lifetime. If you will not be using
an eBee X battery for more than 2 weeks, you must store it at approximately 70%
charge.
Charging your battery for storage is similar to charging it for flight. Instead of
using 100% flight charging mode, choose 70% charging for storage.
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