Nokia Lumia 710 User Manual page 10

10 Get started
2 When the battery is full, disconnect the charger from the phone, and then from
the wall outlet.
To avoid breaking the charger connector, be careful when connecting or
disconnecting the charger cable.
Charge from a computer
You can use USB charging when a wall outlet is not available. Data can be transferred
while charging the device. The efficiency of USB charging power varies significantly,
and it may take a long time for charging to start and the device to start functioning.
1 First connect the USB cable to the computer, then to your phone.