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CAUTION: When connecting the power wires, secure the wires with the strap to the PSU
handle.
6. Connect the wires to a DC power source.
NOTE: While installing, hot-swapping, or hot-adding a new PSU, allow several seconds for the
system to recognize the PSU and determine its status. The PSU status indicator turns green to
signify that the PSU is functioning properly.
System battery
Replacing the system battery
WARNING: There is a danger of a new battery exploding if it is incorrectly installed. Replace the
battery only with the same or equivalent type recommended by the manufacturer. For more
information, see the safety information that shipped with your system.
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1. Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet and peripherals.
2. Remove the system cover.
3. Remove the cooling shroud.
4. Locate the battery socket.
CAUTION: To avoid damage to the battery connector, you must firmly support the connector
while installing or removing a battery.
5. To remove the battery, support the battery connector by pressing down firmly on the positive side of
the connector.
Figure 40. Replacing the System Battery
1. positive side of battery connector 2. system battery
3. negative side of battery connector
6. Lift the battery out of the securing tabs at the negative side of the connector.
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