EN-3
3. Place the pole end of the rechargeable battery into the battery compartment in
the direction indicated by the front, and make sure it is pressed tightly.
4. Insert the charging PCB board into the card slot, facing the rechargeable
battery. Press it tightly. Then snap the battery cable into the slot on the left.
5.
Close the provided battery cover in this kit (refer to the image in Sec 1.1) and
the installation is complete. Keep and store the extra dry cell battery cover
properly for future use.