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Battery
This section explains battery types, use, recharging methods and handling.
Battery types
The computer has different types of batteries.
Battery pack
When the AC adaptor is not connected, the computer's main power source
is a removable lithium ion battery pack, also referred to in this manual as
the main battery. You can purchase additional battery packs for extended
use of the computer away from an AC power source although you should
not change the battery pack while the AC adaptor is connected.
Before you remove the battery pack, save your data and shut down the
computer, or place the computer into Hibernation Mode. Please be aware
that, when placing the computer into Hibernation Mode, the contents of
memory will be saved to the hard disk drive, although for safety sake, it is
best to also save your data manually.
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the computer is turned off. If the RTC battery becomes
completely discharged, the system will lose this information and the real
time clock and calendar will stop working.
You can change the Real Time Clock settings in the BIOS setup utility. To
access it, press and hold the F2 key and then turn on the computer - the
BIOS setup utility will load. Please refer to Chapter 6 Troubleshooting for
further information.
Care and use of the battery pack
This section provides the important safety precautions in order to handle
your battery pack properly.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
Make sure the battery is securely installed in the computer before
attempting to charge the battery pack. Improper installation could
generate smoke or fire, or cause the battery pack to rupture.
Keep the battery pack out of reach of infants and children. It can
cause injury.
C870/C870D/L870/L870D/L875/L875D
User's Manual 5-3