Toshiba Satellite M300 - 3 RTC Battery; RTC Battery; Table 1-13 Time Required for Charges of RTC Battery

Chapter 1 Hardware Overview
Satellite M300 and Satellite Pro M300 Maintenance Manual (960-Q02)
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1.8.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory.
Table 1-13 lists the Time required for charges of RTC battery and data preservation time.
Table 1-13 Time required for charges of RTC battery
Condition Time
Power ON (Lights Power LED) About 24 hours
Data preservation tome (Full-charged) About a month