Toshiba Satellite C850 User Manual - Page 84

Batteries exhausted time, Extending battery life, Battery type, Sleep Mode, Shut Down Mode

Page 84 highlights

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. Whether you enable Sleep and Charge function. 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 1.9 days about 2.9 months Battery pack (48Wh, 6 cell) about 3.7 days about 5.8 months Battery pack (66Wh, 6 cell high capacity) about 5.1 days about 8 months 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. 2. Disconnect the AC adaptor and turn on the computer's power - if it does not turn on then go to Step 4. 3. Operate the computer on battery power for five minutes. If you find that the battery pack has at least five minutes of operating time, continue operating until the battery pack is fully discharged, however, if the DC IN/Battery indicator flashes or there is some other warning to indicate a low battery condition, go to Step 4. User's Manual 4-27

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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.
Whether you enable Sleep and Charge function.
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 1.9 days
about 2.9 months
Battery pack
(48Wh, 6 cell)
about 3.7 days
about 5.8 months
Battery pack
(66Wh, 6 cell high
capacity)
about 5.1 days
about 8 months
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.
2. Disconnect the AC adaptor and turn on the computer's power - if it
does not turn on then go to Step 4.
3. Operate the computer on battery power for five minutes. If you find
that the battery pack has at least five minutes of operating time,
continue operating until the battery pack is fully discharged, however, if
the
DC IN/Battery
indicator flashes or there is some other warning to
indicate a low battery condition, go to Step 4.
User's Manual
4-27