Toshiba Portege M400 PPM40C-TD30TEF Users Manual Canada; English - Page 158

Power and Power-Up Modes ■ Cooling Method ■ System standby ■ System Hibernation ■ Monitor Power off ■ HDD Power off ■ How often and how long you use the hard disk, optical disc and the floppy disk drive. ■ How much charge the battery contained to begin with. ■ How you use optional devices, such as a PC card, to which the battery supplies power. ■ Enabling Standby Mode conserves battery power if you are frequently turning the computer off and on. ■ Where you store your programs and data. ■ Closing the LCD display panel when you are not using the keyboard saves power. ■ Operating time decreases at low temperatures. ■ The condition of the battery terminals. Make sure the battery 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 State and Retention Time Battery pack (4700mAh) Slice Expansion Battery (4000mAh) about 6 days (Standby Mode) about 70 days (Boot mode) about 5 days (Standby Mode) about 60 days (Boot mode) RTC battery 30 days Extending battery life To maximize the life of your battery pack: ■ At least once a month, disconnect the computer from a power source and operate it on battery power until the battery pack fully discharges. Before doing so, follow the steps below. 1. Turn off the computer's power. 2. Disconnect the AC adaptor and turn on the computer's power. If it does not turn on go to step 4. 6-12 User's Manual