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4 Maintenance and Battery Replacement
Vertiv™ | Liebert® PSI5 120V Input / 120V Output & 208V lnput / 208V Output Installer/User Guide
Figure 4-2 Removing the battery box from 1U units to replace batteries
ITEM
DESCRIPTION
1
Remove the front panel.
2
Disconnect the battery connector by squeezing the ends of the connectors and pulling apart.
3
Remove screws and metal battery cover.
4
Remove the battery
5
Slide the replacement battery kit into the UPS. Replace the metal plate and secure with the two screws.
6
Reconnect the battery connector.
7
Snap the front panel back on.
To replace the batteries on MT models:
1. Place the unit on its left side and remove the 6 screws and the metal battery cover plate.
2. SIide out the existing battery kit and disconnect the two halves of the battery connector.
3. For LI models: attach the provided connector to the replacement battery terminals. Plug the black wire
in first then the red. For VRLA models: skip this step.
4. Orient the connector and the new battery in the same way as the original battery, connect the two
halves of the battery connector, and slide into UPS.
5. Replace the metal plate and secure with the 6 screws.
6. Press and hold the power button for 3 seconds to initiate the Battery-Self Check mode clearing any
previous battery fault warning.
7. Properly dispose of the old batteries at an appropriate recycling facility or return them to Vertiv™ in the
packing material from the new batteries.
