Toshiba Satellite Pro R50-D Series User Manual page 74

Maximizing battery operating time
The usefulness of a battery depends on how long it can supply power on a
single charge, while how long the charge lasts in a battery depends on:
Batteries exhausted time
When you turn off the power of your computer with batteries fully charged,
the batteries exhaust within the following approximate period.
Battery type
Battery pack
(45 Wh, 4 cell)
RTC battery
Extending battery life
To maximize the life of your battery packs, do the following at least once a
month.
1.
2.
User's Manual
Processor speed
Screen brightness
Internal storage drive power off period
How often and for how long you use the internal storage drive 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
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
Sleep Mode
about 6 days
about 8 years
Turn off the computer's power.
Disconnect the AC adaptor and turn on the computer's power. If it
does not turn on then go to Step 4.
Shut Down Mode
about 105 days
about 8 years
4-19