UPS Maintenance

Replacing Batteries

The following steps explain how to replace the batteries. Consider all warnings, cautions, and notes before replacing batteries.

W A R N I N G

SBatteries can present a risk of electrical shock or burn from high short circuit current. The following precautions should be observed: 1) Remove watches, rings, or other metal objects; 2) Use tools with insulated handles; 3) Do not lay tools or metal parts on top of batteries.

SThe battery is not isolated from AC input. Hazardous voltage may exist between battery terminals.

SReplace batteries with the same number and type of batteries as originally installed in the UPS.

SThe UPS must be unplugged from the AC power source before replacing batteries.

1.Turn off and unplug the equipment from the UPS.

2.Turn off the UPS and unplug the power cord from the power source. Wait 30 seconds.

3.Turn the UPS over and remove the screw(s) holding the battery door in place on the bottom of the UPS. Slide the door off (see Figure 9 and Figure 10).

4.Gently pull out the battery by grasping the removal tabs.

5.Disconnect the two wires connecting the battery to the UPS.

6.Connect the battery wires to the new battery; red to positive (+), black to negative (–). Carefully place the new battery into the case.

7.Slide the battery door back into place and secure with the screw(s) removed in Step 3.

8.Reconnect the power cord to the power source and turn the UPS on.

9.Reconnect the equipment to the UPS. Turn on the equipment one piece at a time.

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Powerware® 3115 User’s Guide S www.powerware.com