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Mn 525 – Minuteman UPS MN 325/MN 525 User Manual

Page 11

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MN 325/MN 525 User’s Manual

Uninterruptible Power Supply (UPS)

9

BATTERY REPLACEMENT PROCEDURE


MN 525




Retaining Screws



6. Disconnect the battery positive (red) wire from the battery positive (+) terminal.
7. Turn the power switch on, to discharge the UPS.
8. Disconnect the battery negative (black) wire from the battery negative (-) terminal.
9. Remove the defective battery from the battery compartment.
10. Install the new battery into the battery compartment.
11. Reconnect the battery negative (black) wire to the battery negative (-) terminal.
12. Reconnect the battery positive (red) wire to the battery positive (+) terminal. Note: Some spark-

ing may occur, this is normal.

13. Reinstall the battery compartment door and the retaining screws.
14. Charge the UPS for 4 to 8 hours to ensure the UPS performs expected runtime.

Note: Batteries are consider HAZARDOUS WASTE and must be disposed of properly at an ap-
propriate recycling facility or return them to the supplier in the packing material for the new bat-
tery. Contact your local government for more information about proper disposal and recycling of
batteries.



Note: Replace the batteries with the same number and type as originally installed in the UPS.
These batteries have pressure-operated vents. These UPS contain sealed non-spillable lead-acid
batteries.

Model #

MN 325

MN 525

Battery
Model #

12V3ah 12V7ah

Battery
Part #

BP3-12 BP7-12