Toshiba Portege R500 PPR50C Users Manual Canada; English - Page 115
Technology which increases battery operating time, Maximizing battery operating time
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Power and Power-Up Modes Technology which increases battery operating time This computer is equipped with technology which increases battery operating time. The following functions allow for increased battery operating time. 1. Semi-transparent LCD ■ BackLight On/Off button (please refer to the Special features section in Chapter 3, Hardware, Utilities and Options.) ■ Multi-field Driving (BIOS Setup) (please refer to the BIOS Setup Program section in Chapter 7, HW Setup & BIOS Setup.) 2. ODD ■ Optical disc drive power on/off function (please refer to the Hot keys section in Chapter 5, The Keyboard.) 3. Performance/Battery Life Settings (BIOS Setup) (please refer to the BIOS Setup Program section in Chapter 7, HW Setup & BIOS Setup.) ■ Gfx Render Clock switching ■ Memory operating frequency switching 4. LAN ■ Built-in LAN Enable/Disable function (BIOS Setup) (please refer to the BIOS Setup Program section in Chapter 7, HW Setup & BIOS Setup.) Maximizing battery operating time A battery's usefulness depends on how long it can supply power on a single charge, while how long the charge lasts in a battery depends on: ■ Processor speed ■ Screen brightness ■ System Sleep Mode ■ System Hibernation Mode ■ Display power off period ■ Hard disk drive power off period ■ How often and for how long you use the hard disk drive and external disk(c) drives, for example, optical disc and floppy diskette drive. ■ How much charge the battery contained to begin with. ■ How you use optional devices, such as a PC Cards, 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. User's Manual 6-8