Toshiba Satellite Pro E10 User Guide - Page 56

Maximizing battery operating time, Battery pack exhausted time, Battery type, Sleep Mode

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Wait several seconds to monitor the remaining operating time because the computer needs time to check the remaining capacity of the battery pack and then calculate the remaining operating time, based on this together with the current power consumption. Be aware that the actual remaining operating time might differ slightly from the calculated time. With repeated discharges and recharges, the battery capacity will gradually decrease. In view of this, it is noted that an often used, older battery will not operate for as long as a new battery even when both are fully charged. 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: 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 Battery pack exhausted time When you turn off the power of your computer with the battery pack fully charged, the battery pack will exhaust within the following approximate period. Battery type Sleep Mode Shut Down Mode Battery pack (45 Wh, 2 cell) about 9 days about 365 days RTC battery about 8 years about 9 years User's Manual 4-9

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Wait several seconds to monitor the remaining operating time because
the computer needs time to check the remaining capacity of the
battery pack and then calculate the remaining operating time, based
on this together with the current power consumption.
Be aware that the actual remaining operating time might differ slightly
from the calculated time.
With repeated discharges and recharges, the battery capacity will
gradually decrease. In view of this, it is noted that an often used, older
battery will not operate for as long as a new battery even when both
are fully charged.
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:
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
Battery pack exhausted time
When you turn off the power of your computer with the battery pack fully
charged, the battery pack will exhaust within the following approximate
period.
Battery type
Sleep Mode
Shut Down Mode
Battery pack
(45 Wh, 2 cell)
about 9 days
about 365 days
RTC battery
about 8 years
about 9 years
User's Manual
4-9