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 | about 3 days | about 33 days |
(48Wh, 6 cell) |
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|
Battery pack | about 4 days | about 45 days |
(66Wh, 6 cell high |
|
|
capacity) |
|
|
RTC Battery | about 70 days | about 70 days |
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|
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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 |