Toshiba Satellite 1905-S277 User Guide - Page 106

106 Mobile Computing Monitoring battery power Conserving battery power How long a fully charged battery lasts when you are using the computer depends on a number of factors, such as: ❖ How the computer is configured ❖ How much you use the display panel instead of an external monitor ❖ How much you use the hard disk and other drives ❖ Whether you use any optional devices to which the battery supplies power, such as a PC Card ❖ Where you are working-since operating time decreases at low temperatures Toshiba's power-saving options greatly increase the length of time you can use the computer before it becomes necessary to recharge the battery. Toshiba has combined these options into preset power usage modes. You may also set individual power-saving options to suit your own needs. See "Power Management" on page 172 for details. What to do when the battery runs low When the battery runs low you can: ❖ Plug the computer into an external power source and recharge the battery. ❖ Put the computer in Hibernation mode and replace the battery with a charged spare. ❖ Save your work and turn off the computer. If you don't manage to do any of these things before the battery completely runs out of power, the computer automatically enters Hibernation mode and turns itself off. Hibernation mode keeps track of where you were so, when