User`s guide
Chapter 03: Battery Usage and Care 21
eo a7400 Ultra-Mobile Tablet PCs features two (2) Lithium-Ion
batteries, of which one is user replaceable, rechargeable and also
hot swappable. This means that you can remove a discharged
battery and replace it with a fully charged battery without
putting the computer into hibernation mode, or fully powering
it o, to prevent data loss.
Depending on your system’s conguration and your application
usage, a fully charged set of batteries should allow you to run
your eo a7400 for approximately six (6) hours before needing to
recharge the batteries or swapping out the external battery for a
charged one.
Operations that will signicantly reduce battery life include, but
are not limited to, the following:
1. Using external bus-powered USB drives such as optical,
oppy and hard disk drives.
2. Using wireless communications devices, including the inter-
nal WiFi networking card, optional 3G WWAN data module,
Bluetooth adapter, or USB Cellular/3G modems.
3. Using high-brightness display settings, 3D screen savers, or
other computationally intensive programs such as graphics
heavy games, media players and 3D graphics applications.
4. Running the computer in maximum performance mode.
5. Using the computer in overly-hot environmental conditions.
Chapter 03
Battery Usage and Care