AC320: How long should the Parent Unit battery charge last?

When your Parent Unit is removed from the AC Adaptor and in Video & Sound Mode, the rechargeable batteries power will last approximately 5 hrs:

• When the Parent Unit has the video display constantly ON and/or also using continuous sound transmission VOX OFF (search articles for VOX info) as with all cordless devices this will naturally drain the rechargeable batteries when it is not connected to the power
• In addition to this, the amount of noise in each home is different, therefore as the Parent Unit is constantly transmitting background noises, music etc. these will also drain the battery power in this unit

When the Parent Unit is removed from AC Adaptor and in Screen Save & Sound Mode the rechargeable battery will last approximately 8 hrs:

• It is recommended that, should you wish to use the Parent Unit for longer periods of time and/or using continuous sound transmission VOX OFF (search for VOX info), that you keep the Parent Unit plugged into the power

This is indicative of any portable device (such as your mobile phone) that constantly streams information, video etc. These functions use more power than when any unit is standby/power save mode.