1 Hardware Overview

1.7 Batteries

‰Data preservation time

When turning off the power in being charged fully, the preservation time is as following Table 1-9.

Table 1-9 Data preservation time

Battery type

Standby mode

 

 

Main battery (4,700 mAh)

6 days

 

 

Boot mode

60 days

1.7.2 RTC battery

The RTC battery provides power to keep the current date, time and other setup information in memory while the computer is turned off. Table 1-10 lists the charging time and data preservation period of the RTC battery.

Table 1-10 RTC battery charging/data preservation time

Status

Time

 

 

Charging Time (power on)

8 hours

 

 

Data preservation period (full charge)

30 days

 

 

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[CONFIDENTIAL]

PORTÉGÉ M500 Maintenance Manual (960-559)

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Image 36
Toshiba SATELLITE U200 manual Hardware Overview Batteries, Data preservation time, RTC battery