2) Unlock the four battery latches;
3) Install the battery carefully from back to front, and ensure the battery sits in the compartment evenly;
4) Lift the battery gently by grips and slowly shift it backwards until the battery connector aligns
with the charger interface;
5) Press the battery to ensure it is slotted into place;
6) Secure the four battery latches.
Warning:
Be sure to insert the battery carefully. Do not drop it into the board.
Install the wristband
As shown in the figure below, thread the string of the wristband through the bottom hole of the
remote controller and tighten it.