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Additional battery unit (BUM300S) replacement procedure
For information on UPS battery replacement procedure, refer to the UPS instruction manual.
1. Use a screwdriver to loosen (anti-clockwise rotation) the 4 screws on the front panel of the additional battery
unit until they turn freely.
Loosen the
4 screws.
2. Remove the battery connector from the plate cover ➀ and disconnect the connector. ➁
Battery connector
Disconnect by holding here.
3. Remove (anti-clockwise rotation) the 2 screws that hold the plate cover in place. ➀
While pulling the plate cover toward you ➁, lift it up and remove the 2 lower battery connectors from the
eyehole. ➂
Plate cover
Remove the 3 screws.