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 BATCL50L battery pack with this
computer.