Toshiba Portege M300 User Manual - Page 146

Power and Power-Up Modes Replacing the battery pack When the battery pack reaches the end of its operating life you will need to install a new one. The life of the battery pack is generally about 500 recharges. If the Battery indicator flashes orange shortly after fully recharging the battery, the battery pack needs to be replaced. You might also replace a discharged battery pack with a charged spare when you are operating your computer away from an AC power source. This section explains how to remove and install the battery pack. Removing the battery pack To replace a discharged battery, follow the steps below. ■ When handling battery packs, do not short-circuit the terminals. Also do not drop, hit or otherwise apply impact; do not scratch or break the casing and do not twist or bend the battery pack. ■ Do not remove the battery pack while the computer is in Sleep Mode. Data is stored in RAM, so if the computer loses power it will be lost. ■ In Hibernation Mode, data will be lost if you remove the battery or disconnect the AC adaptor before the save is completed. Wait for the Built-in HDD indicator to go out. ■ Do not touch the latch while holding the computer. Or you may get injured by the dropped battery by unintentional release of the latch. 1. Save your work. 2. Turn the computer's power off. Make sure the Power indicator is off. 3. Remove all cables connected to the computer. 4. Turn the computer upside down. 5. Slide and hold the battery release latch to free the battery pack after moving the battery pack lock into its unlock position - then slide the battery pack out of the computer. Battery pack Battery Release Latch Battery Pack Lock 6-12 Releasing the battery pack User's Manual