2. Connect the battery to the USB charging cable. Then, connect the USB charging cable to a
computer or wall adapter. When charging, the charger will flash red; after charging is finished, the
charger will stay solidly lit. Please remove the battery from the charger promptly when charging
has finished. Full charging time is around 150 minutes.
750mAh/7.6/15C/5.7Wh
1.3 Installing and Removing the propellers
The X4 aircraft uses 5.3-inch propellers. Each is marked with either an A or a B. Please replace
damaged propellers. Before installing the propellers for the first time, please check whether the
propeller and motor arm read "A" or "B”. The two letters should match.
06
Make sure the battery is fully charged before each flight.
Please do not leave unattended while charging.
When charging is complete, disconnect the charger and battery from power immediately.
Propeller A
Propeller B
Propeller B
Propeller A
