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16 Chapter 2 : Basics
• Keep your battery away from direct sunlight and other sources of heat.
Temperatures over 45 degrees Celsius (113 degrees Fahrenheit) can
permanently reduce the capacity and life span of any lithium-ion battery.
• As with any mobile phone, if you are in an area with no wireless coverage,
your phone continues to search for a signal, which consumes power. Turn
off your phone if you are outside a coverage area (see Tu rn wirel ess
services off (airplane mode)).
• The fewer wireless connections you have, the less power is required of the
battery. Turn on airplane mode when you don’t need to be wirelessly
connected. Airplane mode turns off your connection to the Verizon
Wireless network, and it also turns off Wi-Fi and Bluetooth. You can turn
on Wi-Fi (see Wi-Fi) and Bluetooth (see Bluetooth
®
wireless technology)
separately when airplane mode is on. You can also turn off GPS (see
Location Services).
• If you set up an email account in the Email application, set the interval to
automatically download email to every two hours or less frequently (see
Enter advanced account settings).
• Lower the screen brightness (see Change screen brightness).
• Keep in mind that frequent use of instant messaging (IM) can reduce
battery life.
• Charge your phone whenever you can. Charge it overnight. The battery
has a much longer useful life when it is topped off frequently than when it
is charged after it is fully drained.
• Buy an extra battery as a spare for long plane trips or periods of heavy use.
To purchase batteries that are compatible with your phone, go to
palm.com/store and click Accessories for your phone.
Tu rn th e p ho n e on /o ff
Your Pre Plus phone’s screen can be turned on and off separately from its
wireless services (which are the Phone , Wi-Fi , and Bluetooth
®
applications). This means you can wake up the screen to use just the
organizer features of your device (Calendar, Contacts, Tasks, Memos, and so
on) without turning on the phone and other wireless features. Also, when
the screen is turned off, the phone can be on and ready for you to receive
phone calls or messages.
Turn the screen on/off
Turn the screen on and leave the wireless services turned off when you want
to use only the organizer features, for example, when you’re on a plane and
you must turn off all wireless services, but you want to look at your calendar.
To turn the screen on, do one of the following:
• Press power . Drag up to unlock the screen.
* Power
• Slide out the keyboard.
To turn the screen off, press power .
To save power, the screen dims automatically after a period of inactivity,
then turns off. If you’re on a call when the screen dims and turns off, the call
is not affected. To brighten the screen if it has dimmed, tap the screen.
Turn wireless services off (airplane mode)
Airplane mode turns off your phone as well as the Bluetooth
®
wireless
technology and Wi-Fi features. Use airplane mode when you are on a plane
TIP You can set how long the screen stays on during a period of inactivity (see Set
the interval for turning the screen off automatically).