Toshiba Portege M700 PPM70A-0G301G Users Manual Canada; English - Page 171
Maximizing battery operating time, Retaining data with power off, Battery type
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Power and Power-Up Modes 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. ■ 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. Retaining data with power off When you turn off your computer with fully charged batteries, the batteries retain data for the following approximate time periods: Retention time Battery type Battery pack (4700mAh) Slice Expansion Battery (4000mAh) RTC battery State and Retention Time about 2 days (Sleep Mode) about 75 days (Boot Mode) about 2 days (Sleep Mode) about 65 days (Boot Mode) 30 days User's Manual 6-9