Maintenance
29
Figure 24 Pull out the battery
6. Unpack the new internal battery pack. Take care not to destroy the packing.
Compare the new and old internal battery pack to make sure they are the same type and model. If
so, proceed with Step 7; if they are different, stop and contact your local Emerson representative,
or Emerson Channel Support.
7. Line up and slide in the new internal battery pack.
8. Reconnect the battery plug and battery receptacle
9. Push the battery wire and internal battery pack back into the UPS.
10. Reattach the front battery door with the six screws.
11. Reattach the front plastic bezel cover to the UPS.
6.2 Battery Charging
The batteries are valve-regulated, nonspillable, lead acid and should be kept charged to attain their
design life. The Liebert GXT3 charges the batteries continuously when it is connected to the utility
input power.
If the Liebert GXT3 will be stored for a long time, Emerson recommends connecting the UPS to input
power for at least 24 hours every four to six months to ensure full recharge of the batteries.
NOTE
The internal battery pack is hot-swappable. However, caution should be exercised because
during this procedure the load is unprotected from disturbances and power outages. Do not
replace the battery while the UPS is operating in Battery Mode. This will result in a loss of
output power and will drop the connected load.
!
WARNING
The battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed before replacing the battery pack:
• Remove rings, watches and other metal objects.
• Use tools with insulated handles.
• Do not lay tools or other metal objects on the batteries.
• If the battery kit is damaged in any way or shows signs of leakage, contact your local Emer-
son representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
• Handle, transport and recycle batteries in accordance with local regulations.
Internal Battery Pack
Battery
Handle
Pull Out with Battery Handle