Foss Infratec Sofia Manual Del Usuario página 54

Caution
The four cells can easily fall from the SHW and become damaged.
Remove the cells as instructed before removing or replacing the
SHW.
4. Gently rotate the SHW and remove the four cells and place them on a stable
surface.
Fig. 5:3 Removing cells
5:4
Infratec™ Sofia
User Manual 6002 5350 / Rev. 6