To install the battery:
Place the battery into the opening at a 45° angle and rotate the battery down until the latch clicks.
Turning the Phone On and Off
Turning On
Make sure that the charged battery pack has been installed in the back of the phone or that you have external power (using the cigarette lighter adaptor or car kit).
Press the 
button until the red light is lit. If the phone is closed, the 
button must be held for approximately 3 seconds. If the phone is open, the 
button must be held for 1 second.
Turning Off
1.Press the 
button until “Powering Off” is displayed or until the red light flashes. If the
phone is closed, the 
button must be pressed for approximately 3 seconds. If the phone is open, the 
button must be held for 1 second.
2.Release the 
button.
When the power is off, nothing displays on the screen.
Note
If the 
button is pressed for less than 1 second when open or 3 seconds when closed, the phone will not turn off.
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