Dell PowerEdge T105 - Manual (Page 89)

Installing System Components
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You can operate your system without a battery; however, without a battery,
the configuration information is erased if the system is turned off or
unplugged from the electrical outlet. In this case, you must enter the System
Setup program and reset the configuration options.
CAUTION:
A new battery can explode if it is incorrectly installed. Replace the
battery only with the same or equivalent type recommended by the manufacturer.
Discard used batteries according to the manufacturer’s instructions.
Removing the System Battery
CAUTION:
Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. Before performing any
procedure, see your Product Information Guide for complete information about
safety precautions, working inside the computer and protecting against
electrostatic discharge.
1 Enter the System Setup program and record the option settings on the
System Setup screens. See "Using the System Setup Program" on page 31.
2 Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
3 Open the system. See "Opening the System" on page 47.
4 See Figure 6-2 for the location of the system battery and then remove any
cables that block access to the battery.
NOTICE:
If you use a blunt, nonconductive object to depress the tab next to the
battery, be careful not to touch the system board with the object. Ensure that the
object is inserted between the battery and the tab before you attempt to depress
the tab. Do not pry out the battery. You may damage the system board by prying off
the socket or by breaking circuit traces on the system board.
5 Press the tab on the battery socket to release the battery, then lift the
battery out of the socket. See Figure 3-26.
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