Philips AVENT SCD971 Manual page 21

Follow the steps below to charge the Parent Unit:
1 Plug the power adapter into the Parent Unit and the wall socket.
2 The battery status light turns solid orange to indicate that the Parent Unit is
charging.
3 When the battery is fully charged, the battery status light turns to solid white.
When you charge the Parent Unit for 3 hours, it can be used cordlessly for up to
12 hours in Eco mode.
If the Parent Unit is switched on during charging, charging takes approximately
twice as long.
When the Parent Unit is not connected to the mains power and battery is almost
empty (lower than 10%), the battery status light flashes orange and the low
battery alert will sound.
If the Parent Unit battery is empty and is not connected to the mains power, the
Parent Unit will switch off and connection to the Baby Unit will be lost.
Tip: Keep the Parent Unit connected to the mains power during the night as if
the battery runs low, the low battery alert sound may wake you up.
Tip: To save battery, switch off the Parent Unit when not in use.
Note: The battery gradually and very slowly discharges, even when the Parent
Unit is switched off.
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