Toshiba Tecra A40-D1434 Users Guide for Portege R30-D and Tecra C40-D/A40-D - Page 88

Batteries exhausted time (R30-D/A30-D), Extending battery life, Battery type, Sleep Mode

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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 (R30-D/A30-D) 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) Sleep Mode about 3 days Shut Down Mode about 65 days RTC battery about 7 years about 7 years Batteries exhausted time (A40-D) 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) Sleep Mode about 4 days Shut Down Mode about 60 days RTC battery about 8 years about 8 years Extending battery life To maximize the life of your battery packs, do the following at least once a month. 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 4-22

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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 (R30-D/A30-D)
When you turn off the power of your computer with batteries fully charged,
the batteries exhaust within the following approximate period.
Battery type
Sleep Mode
Shut Down Mode
Battery pack
(45 Wh, 4 cell)
about 3 days
about 65 days
RTC battery
about 7 years
about 7 years
Batteries exhausted time (A40-D)
When you turn off the power of your computer with batteries fully charged,
the batteries exhaust within the following approximate period.
Battery type
Sleep Mode
Shut Down Mode
Battery pack
(45 Wh, 4 cell)
about 4 days
about 60 days
RTC battery
about 8 years
about 8 years
Extending battery life
To maximize the life of your battery packs, do the following at least once a
month.
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
4-22