Winbook XP5 User Manual page 19

while charging is in progress. When the battery is fully charged, the entire icon will come on.
[XP5 2-2]
Battery Operation - What You Can Expect
The amount of time you can operate the computer on battery power will vary considerably
depending on your work habits, your software, and your use of the power management features.
The WinBook has a power management scheme that, if used effectively, will greatly increase the
amount of operating time you can expect from one charge.
In general, any program that makes extensive use of the disk drives will use more power. Even
Windows can be a power-drain if you use too many programs at the same time, so it is better to
only run programs you are actively using.
Another influential factor is the hardware configuration of the model you purchased. Power
consumption will depend on which LCD screen and CPU you have, and whether you have the
optional audio card and fax modem installed. A dual-scan color screen uses the least power,
while TFT color screens use substantially more. Likewise, the faster your CPU, the more power
it will use at full speed. Adding either fax or audio options also adds to the overall load.
From all of this you can see that it's something of a problem to arrive at a useful figure for how
long one battery charge will last, but we'll do it anyway. If you're an average user, you'll
probably have the power management default settings active, be using the hard disk 50% of the
time, and be using the display 80% of the time. These figures are typical for word processing
work.
If that is the case, you can probably expect one charge to give you three to four hours for dual-
scan color, and two to three hours for an active matrix color (TFT) screen. You can expect about
30% less than these figures if you are using the NIMH battery.
[XP5 2-3]
From this, by the way, you can see that the LCD type is the most influential factor. If your
normal computer use exceeds the averages assumed, you are likely to get less from one battery
charge than the figures listed here. However, if you are careful to conserve power, you can
expect one charge to last longer.
The battery gauge in the LCD status panel indicates approximately how much charge is left in
the battery.