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(Sample Illustration) Inserting the battery 3 Slide the battery release lock to the locked position. (Sample Illustration) Locking the battery release lock 4 Turn the computer right side up. L640 series L650 series L640 series L650 series Mobile Computing Mobile Computing Taking care of your battery 5 Reconnect any cables that were removed in step 3 of “Removing the battery from the computer” on page 124. 6 Restart the computer. Taking care of your battery The following sections offer tips on how to take care of your battery and prolong its life. Safety precautions . If the battery pack produces an odor, overheats or changes color or shape while it is being used or charged, turn off the computer’s power immediately and disconnect the power cord/cable from the power socket. Carefully remove the battery pack from the computer. . Do not try to disassemble a battery pack. . Do not overcharge or reverse charge a battery. Overcharging will shorten its life, and reverse charging could damage it. . Avoid touching the metal terminals of the battery with another metal object. Short-circuiting the battery can cause it to overheat and may cause damage to the battery or the computer. . Do not incinerate a spent battery, as this could cause it to explode and release caustic liquid. . If a battery is leaking or damaged, replace it immediately. Use protective gloves when handling a damaged battery. . To replace the main battery, use an identical battery that you can purchase through the Toshiba Web site at accessories.toshiba.com. . A reverse polarity condition should be avoided with all batteries. The main battery is designed so that it cannot be installed in reverse polarity. . Charge the battery only in the computer or in a battery charger designated as an approved option. . When you install the battery pack, you should hear a click when it is seated properly. . Do not expose the battery pack to fire. The battery pack could explode. Mobile Computing Mobile Computing Taking care of your battery Maintaining your battery Fully discharging your battery pack will allow better accuracy of the battery meter. To fully discharge your battery pack: . Periodically, 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. 3 Operate the computer on battery power for five minutes. If the battery pack has at least five minutes of operating time, continue operating until the battery pack is fully discharged. If the battery light flashes or there is some other warning to indicate a low battery, go to step 4. 4 Connect the AC adaptor to the computer and the power cord/cable to a power outlet. The DC-IN or AC power-light should glow white, and the battery light should glow amber to indicate that the battery pack is being charged. If the D...

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