User Manual

How you use optional devices, such as a USB device, to which the
battery supplies power
Where you store your programs and data
Whether you close the display panel when you are not using the
keyboard - closing the display saves power.
The environmental temperature - operating time decreases at low
temperatures.
System Sleep Mode
System Hibernation Mode
Display power off period
Whether you enable Sleep Mode, which can conserve battery power if
you are frequently turning the computer off and on.
The condition of the battery terminals. Always ensure the terminals
stay clean by wiping them with a clean dry cloth before installing the
battery pack.
Batteries exhausted time
When you turn off the power of your computer with batteries fully charged,
the batteries will exhaust within the following approximate period.
Battery type Model Name Sleep Mode Shut Down
Mode
Battery pack
(45 Wh, 4 cell)
R50-C/A50-C/Z50-C/
C50-C
about 5 days about 95 days
R50-D/A50-D/Z50-D/
C50-D
about 6 days about 105
days
R50-E/A50-E/Z50-E/
C50-E
about 5 days about 95 days
R50-EC/C50-EC/
A50-EC
about 9 days about 60 days
C50-F/A50-F/R50-F about 8 days about 40 days
Battery pack
(48 Wh, 4 cell)
C50-J/A50-J/R50-J about 2.5 ~6
days
about 50 days
User's Manual 4-21