Installation 24
Charging the UPS batteries
Allow the batteries to charge before putting the UPS into service.
IMPORTANT: Charge the batteries for at least 24 hours before supplying backup power to
devices. The batteries charge to:
• 90% of their capacity within 4 hours
• 100% of their capacity within 24 hours
Starting power to the load
Start power to the load by placing the UPS in Operate mode (on page 27).
IMPORTANT: AC power must be available the first time the UPS is started.
Installing the ERM
Before installing the unit, review and adhere to all warnings provided in "Precautions (on page 13)."
WARNING: A risk of personal injury or damage to the equipment exists. Uneven loading of
equipment in the rack might cause the rack to become unstable. Install the heavier
components first, and then continue to populate the rack from the bottom to the top.
1. Install the mounting rails ("Installing the mounting rails" on page 14).
2. With one person on each side, lift the chassis to rail level and slide the chassis on the mounting rails.
3. Attach the chassis to the rack using the supplied screws.
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