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• 5020: 200 hours when display backlight is turned off. 5040: 100 hours when display
backlight is turned off.
• 5020: 100 hours when display backlight is set
at dimmed. 5040: 60 hours when
display backlight is set at dimmed.
For information about how to check battery capacity, refer to “Battery” on page 48.
1.7 Battery Disposal
Warning: Lithium lon batteries must be disposed of properly. Do not dispose of the
batteries in office or household waste.
Lithium lon batteries are recyclable. Y
ou can help preserve the environment by return-
ing your unwanted batteries to your nearest recycling center for recycling or proper
di
sposal.
Contact your system administrator for more information about batter
y disposal and
recycling centers in your local area.