Power Supply Units (Psu) - Dell E31S Series Owner's Manual

Figure 55. Removing the system battery
a. system battery
b. system battery slot
3. To install a new system battery, hold the battery with the "+" facing up and slide it under the securing tabs.
4. Press the battery into the connector until it snaps into place.
Figure 56. Installing the system battery
a. system battery
b. system battery slot
Next steps
1. Install the cooling shroud.
2. Follow the procedure listed in the After working inside your system section.
3. While booting, press F2 to enter System Setup and ensure the battery is operating properly.
4. Enter the correct time and date in the System Setup Time and Date fields.
5. Exit System Setup.
Related tasks
Before working inside your system
Removing the cooling shroud
Installing the cooling shroud
After working inside your system
Related reference
Safety instructions
System board jumpers and connectors

Power supply units (PSU)

Your system supports two 1100 W AC PSU modules.
CAUTION: For AC PSUs, use only PSUs with the Extended Power Performance (EPP) label on the back. Mixing PSUs
from previous generations of systems can result in a PSU mismatch condition or failure to turn on.
Installing and removing system components 111