See also
If your battery needs to be replaced:
| Step | Action | 
|---|---|
| Make sure you have a Phillips 0 screwdriver. | |
| Read the Safety guidelines. | |
| Disconnect the power cable from the plug located on NAO’s back.   | |
| Remove the screws of the battery cover with the Phillips 0 screwdriver (2 screws on NAO V4, 4 screws on NAO V3.x).   | |
| Remove the used battery and replace it with a new one.   | |
| Once it fits snuggly in its slot, place the cover back into position and tighten all screws. | |
| Charge your new battery. For further details, see Charging the battery. |