Toshiba Satellite Pro A50-A User Manual Page 78

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Hard Disk Drive power off period
How often and for how long you use the HDD/SSD and external disk
drives, for example, optical disc.
How much charge the battery contained to begin with.
How you use optional devices, such as a USB device, to which the
battery supplies power.
Whether you enable Sleep Mode, which can conserve battery power if
you are frequently turning the computer off and on.
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.
The condition of the battery terminals - you should 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 be exhausted within the following approximate period.
Battery type Sleep Mode Shut Down Mode
Battery pack
(24Wh, 3 cell)
about 2 days about 50 days
Battery pack
(48Wh, 6 cell)
about 5 days about 100 days
Battery pack
(67Wh, 6 cell)
about 6 days about 135 days (TECRA A50-A/
Satellite PRO A50-A)
about 80 days (TECRA W50-A)
RTC Battery
(Normal)
about 30 days about 30 days
RTC Battery
(High Capacity)
about 90 days about 90 days
Extending battery life
To maximize the life of your battery packs:
At least once a month, disconnect the computer from a power source and
operate it on battery power until the battery pack fully discharges. Before
doing so, follow the steps as detailed below.
1. Turn off the computer's power.
User's Manual 4-26
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