Blackberry RIM Wireless Handhelds 5810 - Manual (Page 43)

Charging your handheld battery
Getting Started Guide 43
Your handheld battery can be kept at a full charge by charging it
every day for 10 to 15 minutes. From an empty battery, a full charge
can be achieved in approximately three to four hours. It is not
necessary to drain the battery completely before you recharge it.
To remove the attachment pieces
After you finish using the power adapter, unplug it from the wall
outlet. Press the tab below the attachment piece and slide the
attachment piece out of the back of the power adapter.
Removing the North American attachment piece
To remove the handheld from the cradle
To remove your handheld from the cradle, brace the bottom of the
cradle with one hand and gently pull the handheld up and out of
the cradle with the other hand.
Note: The battery power indicator displays a low level if the handheld
battery becomes too low. The message Low Battery appears to the left
of the wireless coverage indicator and the handheld beeps. Recharge
your handheld as soon as possible.