Battery Life - Toshiba PORTÉGÉ X20W-D User Manual

Battery Life

Battery life might vary considerably depending on product model,
configuration, applications, power management settings, and features
utilized, as well as the natural performance variations produced by the
design of individual components. Published battery life numbers are
achieved on select models and configurations tested by TOSHIBA at the
time of publication. Recharge time varies depending on usage. Battery
might not charge while computer is consuming full power.
After going through many charge and discharge cycles, the battery loses its
ability to perform at maximum capacity and needs to be replaced. This is a
normal phenomenon for all batteries. To purchase a new battery pack, see
the accessories information that is shipped with your computer.
Internal Storage Drive Capacity
1 Gigabyte (GB) means 10
The computer operating system, however, reports storage capacity using
powers of 2 for the definition of 1 GB = 2
therefore shows less storage capacity. Available storage capacity will also
be less if the product includes one or more pre-installed operating systems,
such as Microsoft Operating System and/or pre-installed software
applications, or media content. Actual formatted capacity might vary.
LCD
Over a period of time, and depending on the usage of the computer, the
brightness of the LCD screen will deteriorate. This is an intrinsic
characteristic of LCD technology.
Maximum brightness is only available when operating in AC power mode.
Screen dims when the computer is operated on battery power and you
might not be able to increase the brightness of the screen.
Graphics Processing Unit (GPU)
Graphics processing unit (GPU) performance might vary depending on
product model, design configuration, applications, power management
settings and features utilized. GPU performance is only optimized when
operating in AC power mode and might decrease considerably when
operating in battery power mode.
Total Available Graphics Memory is the total of, as applicable, Dedicated
Video Memory, System Video Memory and Shared System Memory.
Shared System Memory varies depending on system memory size and
other factors.
User's Manual
9
= 1,000,000,000 bytes using powers of 10.
30
= 1,073,741,824 bytes, and
7-18