Uninterruptible Power Supply (UPS) Internal Batteries Removal and Replacement

Caution—The UPS internal batteries are heavy. Use caution when handling the heavy batteries.

Parts and Materials Required

  • Phillips screwdriver
  • Uninterruptible Power Supply

Time Required

  • 1 hour

Warnings

  • Servicing should be performed by qualified service personnel knowledgeable of batteries and required precautions. Keep unauthorized personnel away from batteries.
  • Batteries can present a risk of electrical shock or burn from high short circuit current. Observe the following precautions: 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, 4) Wear rubber gloves and boots.
  • When replacing batteries, replace with the same type and number of batteries or battery packs. Contact your service representative to order new batteries.
  • Proper disposal of batteries is required. Refer to your local codes for disposal requirements.
  • Never dispose of batteries in a fire. Batteries may explode when exposed to flame.
  • Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes and may be extremely toxic.
  • Determine if the battery is inadvertently grounded. If inadvertently grounded, remove source from ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock can be reduced if such grounds are removed during installation and maintenance (applicable to equipment and remote battery supplies not having a grounded supply circuit.
  • ELECTRICAL ENERGY HAZARD. Do not attempt to alter any battery wiring or connectors. Attempting to alter wiring can cause injury.
  • Disconnect charging source prior to connecting or disconnecting battery terminals.

Removal Procedure

The internal batteries are located behind the UPS front cover. The internal batteries are packaged together as one unit for easier handling.

  1. Remove the UPS front cover by pushing down on the top of the cover and pulling the cover toward you to unclip it from the cabinet.
    Note—A ribbon cable connects the LCD control panel to the UPS. Do not pull on the cable or disconnect it.
  2. Remove and retain the two screws that secure the internal battery connector. Disconnect the internal battery connector.
  3. Remove and retain the two screws that secure the battery cover plate. Grasp an edge of the battery cover plate and pull it forward gently. Remove and retain the battery cover plate.
  4. Carefully pull the handle on the battery tray and slide the battery package slowly out onto a flat, stable surface. Use two hands to support the battery package. (See the UPS User's Guide for information on proper disposal of batteries.)
  5. Slide the new battery package into the cabinet. Push the battery package in firmly.
  6. Replace the battery cover plate into the slots at the left, threading the battery connector through the access slot. Reinstall the retained screws.
  7. Reconnect the internal battery connector. Connect red to red, and black to black. Press the two parts tightly together to ensure a proper connection.
  8. Place the connector between the screw mounts and reinstall the retained screws.
  9. Replace the UPS front cover.
    1. Verify that the ribbon cable is protected.
    2. Insert the clips on the back of the cover into the cabinet.
    3. Push firmly to snap the cover into place.
  10. Test the new batteries.
    1. Plug the UPS into a power outlet for 48 hours to charge the batteries.
    2. Press any button on the UPS to activate the menu options.
    3. Select CONTROL > START BATTERY TEST.

      The UPS starts a battery test if the batteries are fully charged, the UPS is in Normal mode with no active alarms, and the bypass voltage is acceptable.

      During the battery test, the UPS transfers to Battery mode and discharges the batteries for 25 seconds. The front panel displays Battery test running and the percentage of the test completed.