Make sure:

• The batteries are inserted correctly.
• Only the batteries that are provided with your phone or rechargeable batteries of the exact same type and capacity are used.
• The batteries are not empty. Put the handset onto the phone's charging cradle for charging. The handset will be switched on automatically within 30 minutes. 

Note: In case the handset does not switch on, charge it for at least 60 minutes before switching it on. If the handset still cannot be switched on, go through the tips below:

If there is no charge tone when the handset is placed on the base station (or charging cradle), or the battery icon does not appear:

Make sure:

• The base station (or the charging cradle) is connected to the mains.
• The charging contacts of both the handset and the base station are clean. Wipe them with a dry soft cloth.
• The handset is correctly placed on the charging cradle. A running battery icon would be displayed, or the backlight would be on when the handset is correctly placed on the charging cradle.
• If the above do not help, resetting the handset may solve the problem. To reset the handset, remove the batteries from the handset, and then place them in again.

If the battery icon is displayed when the handset is placed on the base station (or charging cradle)

• Make sure the handset is placed on the base station with which it is paired.  If a handset has been paired with another base station, un-pair it. Then pair this handset with the base station on which it is placed.
• Your batteries may be too old; please change with new batteries that are of the same type provided by the phone. 

Never use normal batteries (such as alkaline batteries), because this may create dangerous situations. If you are having difficulties finding batteries of the appropriate type, please click Contact Page to contact Philips Consumer Care Center.

If the problem persists, the product needs servicing, click Philips Support Page to contact Philips support.