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You can also charge your phone battery by connecting your phone to your
computer using the USB cable. Charging this way takes much longer than using
the AC charger.
Maximizing battery life
Battery life depends on how you use your phone. You can maximize the life
of your battery by following a few easy guidelines:
•
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.
•
Set your screen to turn off automatically after a shorter period of inactivity
(see
Set the interval for turning the screen off
•
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
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 your wireless
service provider, and it also turns off Wi-Fi and Bluetooth. You can turn on
Wi-Fi (see Wi-Fi) and Bluetooth (see
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
•
Keep in mind that frequent use of instant messaging (IM) can reduce
battery life.
•
Turn the phone completely off if you won't be using it for an extended
period of time (see
Turn everything (the screen and wireless services) on/
off).
16
Chapter 2 : Basics
automatically).
Turn wireless
Bluetooth
®
wireless
technology)
Change screen
brightness).
•
Buy an extra battery as a spare for periods of heavy use or long periods
when you cannot charge your phone. To purchase batteries that are
compatible with your phone, go to palm.com/store.
Turn the phone on/off
Your Pre phone's screen can be turned on and off separately from its wireless
services (which are the Phone
, Wi-Fi
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
, and Bluetooth
®
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