Page 299130 UPS-ENENGLISH6. UPS Maintenance6. Slide the new battery package into the cabinet. Push the battery package in firmly.7. Screw the metal part to fix the battery tray.Make sure main internal battery connector is disconnected.8. Connect the battery tray and put back the plastic protection above the connector.A small amount of arcing may occur when connecting the internal batteries.This is normal and will not harm personnel. Connect the cables quickly and firmly.9. Reconnect the internal battery connector. Press the two parts tightly together to ensure a properconnection.10. Place the connector between the screw mounts and reinstall the retained screws.11. Replace the UPS front cover.To replace the cover, verify that the ribbon cable is protected, then insert the clips on the back of thecover into the cabinet and push firmly to snap the cover into place.Put back the 2 fixing screws on the bottom of the cover.12. Continue to "Testing New Batteries" on page 29.Replacing EBMsThe EBM is heavy (see page 31). Lifting the cabinet into the rack requires a minimum of twopeople.To replace the EBMs:1. Unplug the EBM cable from the UPS.If additional EBMs are installed, unplug the EBM cable from the battery connector on each EBM.2. Replace the EBM(s). See "Recycling the Used Battery or UPS" on page 30 for proper disposal.A small amount of arcing may occur when connecting an EBM to the UPS. This is normal andwill not harm personnel. Insert the EBM cable into the UPS battery connector quickly and firmly.3. Plug the EBM cable(s) into the battery connector(s) as shown in figure 7 on page 8. Up to four EBMsmay be connected to the UPS.4. Verify that the EBM connections are tight and that adequate bend radius and strain relief exist foreach cable.6.5 Testing New BatteriesTo test new batteries:1. Plug the UPS into a power outlet for 48 hours to charge the batteries.2. Press any button to activate the menu options.3. Select CONTROL then START BATTERY TEST.The UPS starts a battery test if the batteries are fully charged, the UPS is in Normal mode with noactive alarms, and the bypass voltage is acceptable.During the battery test, the UPS transfers to Battery mode and discharges the batteries for 25seconds. The front panel displays "Battery test running" and the percentage of the test completed.