- remove screw 2 (pic. 55) from the side of the body opposite the control buttons:
- using a flat screwdriver, separate the housing halves by inserting a screwdriver into slot 1;
- remove the board from the case;
- replace battery 3 with a new one, observing the connection polarity;
- insert the board into the case;
- snap the housing halves and tighten the screw 2.
Attention! The remote control cannot use any other type of battery.