User's Manual

5.2.1 Battery Performance
Using a battery lets you work with your notebook without
connecting it to an electrical outlet. Your notebook comes with
one 8-cell Li-Ion battery pack installed, which will give you
approximately 4 hours of operating time.
The performance of the battery can vary, depending on operating
conditions. Your battery may last less time if you are running
power-intensive programs, playing CDs or DVDs, using PC
Cards or have high display-brightness settings.
The Power Management Options can be set to alert you when the
battery charge is low.
Ensure any battery you use is compatible. Failure to do so
may risk fire or explosion. For more details on purchasing
compatible batteries, talk to your notebook retailer.
Batteries should never be disposed of with household waste.
Contact your local waste disposal or environmental agency
for advice on disposing of used lithium
-ion batteries.
Only use the BATCL51L battery pack with this computer.