Philips SCD499 - Manual (Page 17)

Question Answer
The volume of the parent unit may be set too high, which causes the
parent unit to consume a lot of energy. Decrease the volume of the
parent unit
The microphone sensitivity level of the baby unit may be set too high,
which causes the parent unit to consume a lot of energy. Decrease
the microphone sensitivity level in the menu of the parent unit.
Why doesn’t battery
symbol appear on the
display of the parent unit
when I start to recharge
the parent unit?
It may take a few minutes before the battery symbol appears on the
display of the parent unit when you charge the parent for the first
time or after a long period of disuse.
EngliSh 17