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1 Hardware Overview 1.7 Batteries
1-32 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)
1.7 Batteries
The PC has the following two batteries.
Main battery
Real time clock (RTC) battery
Table 1-13 lists the specifications for these two batteries.
Table 1-13 Battery specifications
Battery Name Battery Element Output Voltage Capacity
G71C0004S110
Main battery
G71C0004S210
Lithium ion (6 cell) 10.8 V 4,700 mAh
Real time clock
(RTC) battery
P71035009115 Nickel hydrogen 2.4V 16mAh
1.7.1 Main Battery
The main battery is the primary power supply for the computer when the AC adapter is not
connected. In standby (instant recovery) mode, the main battery maintains the current status
of the computer.