Toshiba S1 User Manual - Page 121

POWER AND POWER-UP MODES User's Manual 2. With repeated discharges and recharges, the battery's capacity will gradually decrease. Therefore, an often used, older battery will not operate for as long as a new battery even when both are fully charged. In this case, Power Saver Utility will indicate a 100% charge for both the old and new battery, but the displayed estimated time remaining will be shorter for the older battery. Maximizing battery operating time A battery's usefulness depends on how long it can supply power on a single charge. How long the charge lasts in a battery depends on: ❑ How you configure the computer, for example, whether you enable battery- power saving options. The computer provides a battery save mode to conserve battery power. This mode has the following options: • Processing speed • Monitor brightness • System standby • System Hibernate • Turn off monitor • Turn off hard disks ❑ How often and how long you use the hard disk , CD/DVD-ROM drive and the diskette 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 Resume mode conserves battery power if you are frequently turning the computer off and on. ❑ Where you store your programs and data. ❑ Closing the display 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. 6-12