Toshiba u300 Manuale Utente

User’s Manual

6-3

Power and Power-Up Modes

Battery types

The computer has the following batteries: 

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Battery pack ( 3cell, 6cell, or  9cell depending on the model.)

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Real Time Clock (RTC) battery 

Battery pack

When the AC adaptor is not connected, the computer's main power source 

is a removable lithium ion battery pack, also referred to in this manual as 

the main battery. You can purchase additional battery packs for extended 

use of the computer away from an AC power source. 
Before you remove the battery pack, set the computer to Hibernation Mode 

or save your data and shut down the computer. Do not change the battery 

pack while the AC adaptor is connected. 

To ensure that the battery pack maintains its maximum capacity, operate 

the computer on battery power at least once a month until the battery pack 

is fully discharged. Refer to 

 in this chapter for 

procedures. If the computer is continuously operated on AC power through 

an AC adaptor for an extended period, more than a month, the battery may 

fail to retain a charge. It may not function efficiently over the expected life of 

the battery and the Battery indicator may not indicate a low-battery 

condition. 

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