Page 28 9130 UPS-EN6. UPS MaintenanceFigure 28. Disconnecting the UPS internal batteries.3. Disconnect one of the 4 battery trays.Remove the plastic protection above the connector and disconnect the battery tray (see figure 29).Figure 29. Disconnecting the internal battery tray.4. Remove the metal fixing part to free the battery tray (see figure 30).Figure 30. Free the battery tray.5. 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 "Recycling the Used Battery orUPS" on page 30 for proper disposal.Verify that the replacement batteries have the same rating as the batteries being replaced.Repeat step 3-4-5 if several battery tray need to be removed.