Original BT Power Adater for BT Phones
Item code: 066270  
Output: 7.5V , 300mA

The Main Base for following models:

8500, 8600, 8610 - 6500, 6510, 6590, 6600 - 4000, 4500, 4600 - 3510, 3540, 3570

BT 2000, 2100, 2200, 2500, 2600, 2700

BT Elements, BT Synergy 5100 / 5500 / 6500, BT Studio 3100 / 3500 

Also for additional handset charging pods for the following models: 

8500, 8600, 8610 - 6500, 6510, 6590, 6600 - 4000, 4500, 4600 - 3510, 3540, 3570

BT 2000, 2100, 2200, 2500, 2600, 2700