10. Battery Replacement
NOTE: Under normal operation, the battery’s life span will be 3-5 years before requiring replacement.
CAUTIONS:
• Do NOT dispose of the batteries in a fire.
• Do NOT attempt to open or dismantle the batteries.
• Remove watches, rings, and other jewelry.
• Use tools with insulated handles.
Marathon Power recommends that you contact our tech support for assistance with battery replacement.
To change the batteries for the Tower units:
1. Unplug the UPS unit from the AC power source and disconnect all connected equipment.
2. Disconnect the AC power cord from the UPS.
3. Remove the eight (8) cover panel securing screws located under and on the back of the unit.
4. Gently push the cover panel back until it disengages. For the 1000VA/1500VA models, the panel
slides all the way back to remove. For the 2000VA/3000VA after disengaging, the panel lifts
up and off.
5. The interconnecting wires and electronics will be exposed. Be careful not to touch any inner
components when changing the batteries.
6 . Remove the four (4) screws holding the battery retainer.
NOTE: Use caution when removing the battery retainer, the batteries are loose and may fall out.
7. Disconnect the battery cables from each battery.
8. The batteries can now be removed from the unit, and discarded appropriately.
9. Place the new batteries in the same position / direction as before and reconnect the wires.
Connect the RED wire to Positive (+) and the BLACK wire to Negative (-).
10.Follow the reverse of steps above to re-assemble the UPS.
11.Follow user manual instructions to correctly reconnect the UPS loads.
To change the batteries for the Rack Mount units (see note below for 2000VA/3000VA models):
1. Unplug the UPS unit from the AC power source and disconnect all connected equipment.
2. Disconnect the AC power cord from the UPS.
3. Remove the two (2) front panel securing screws located on the front of the unit.
4. The interconnecting wires and electronics will be exposed. Be careful not to touch any inner
components when changing the batteries.
5. Remove the two (2) securing screws and then the battery cover plate.
6. The batteries can now be removed from the unit. Slide the batteries out, disconnect and discard
appropriately.
7. Place the new batteries in the same position / direction as before and reconnect the wires.
Connect the RED wire to Positive (+) and the BLACK wire to Negative (-).
8. Follow the reverse of steps above to re-assemble the UPS.
9. Follow user manual instructions to correctly reconnect the UPS loads.
NOTE: For proper battery disposal and recycling info, please call 800-RE-USE-Pb (800-738-7372)
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NOTE: The top cover of the 2000VA and 3000VA models will need to be
removed to access the batteries.
