2.3.1  Charging the battery on a single charger 
Put your phone on its support. Plug the USB cable into the 5V socket of the desktop charger. Plug the other 
end of the USB cable into the AC/DC adaptor. Plug the AC/DC adaptor into the mains power supply. 
  Green steady: the phone is on the charger (or connected to the USB cable) and the battery is fully 
charged. 
  Red steady: the phone is on the charger and the battery is charging. 
You can configure how the handset behaves when it is installed on the charger using the settings menu. 
Refer to the chapter on configuring your telephone. 
2.3.2  Charging the battery on a dual charger  
Place the handset front forward into the Dual Charger upper slot. Place a spare Battery Pack in the front 
slot, charging contacts down. 
To remove the spare battery, push down on the front button. 
  Green steady: the phone is on the charger (or connected to the USB cable) and the battery is fully 
charged. 
  Red steady: the phone is on the charger and the battery is charging. 
You can configure how the handset behaves when it is installed on the charger using the settings menu. 
Refer to the chapter on configuring your telephone. 
2.3.3  Charging the battery with a USB cable 
Plug the USB cable into the USB port of your phone. The other end of the USB cable 
can be plugged into the AC/DC adaptor or into a computer USB port. 
You can also charge your phone from any USB plug, such as a computer USB plug. However, the charging 
time is longer than charging with the AC/DC adapter. Charging time depends on the power source where 
the cable USB is plugged (computer, AC/DC adapter, …).