mobile users
z
A temperature sensor and memory device that stores information about the battery, such as how much charge
is left and how many times it has been recharged
z
Battery-low warning
When the battery charge level becomes low, the battery alarm beeps or displays a warning on your screen.
This tells you that the battery power is critically low (and you should save your work). You can correct this
situation by recharging the battery pack.
Whenever possible, use the AC adapter. The battery will come in handy when you travel or do not have access to
AC power. It is advisable to have an extra fully-charged battery pack available as backup.
Using a battery pack for the first time
Before using a battery pack for the first time:
1. Connect the AC adapter to the computer, then to a power source.
2.
Calibrate the battery
to set the gas gauge to accurately reflect battery capacity.
You only need to do this once with a new battery or with a battery that's been stored without being used for a
long time. If the computer is to be stored for more than two weeks, we recommend you remove the battery
pack.
Battery and Temperature
The battery is most efficient at room temperature. It operates in a wide temperature range but the battery capacity is
affected by higher or lower temperatures.
WARNING
Do not expose battery packs to temperatures below 0ºC (32ºF) or above 46ºC (115ºF). This may
adversely affect the battery pack.
Installing and removing the battery pack
CAUTION!
Before removing the battery pack, make sure that you have an AC adapter connected to the computer;
otherwise, turn off the computer.
To install a battery pack:
Temperature
Approximate
Capacity
0°C
80%
20°C
100%
45°C
100%
1. Line up the battery connectors.
2. Press gently on the battery until it
clicks into place.
Page 33 of 70
VR-2 Help
4/26/2007
file://C:\Documents and Settings\harwoodm\Local Settings\Temp\~hh3F7F.htm
