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Allen-Bradley 1756-BA2 is a controller battery assembly, not a replacement controller or power supply.
Verify the installed controller Series before ordering because Rockwell publishes this battery for Series B 1756-L6x use.
Battery condition should be maintained under the controller documentation and the site's approved shutdown procedure.
Allen-Bradley 1756-BA2 ControlLogix Series B Lithium Battery Assembly Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
1756-BA2 is the lithium battery assembly specified by Rockwell Automation for Series B ControlLogix 1756-L6x controllers. It supports retention of controller memory when normal chassis power is unavailable.
The official product record identifies 1756-BA2 as a ControlLogix L6X Series B-only battery assembly. The published operating-temperature range is 0–60 °C.
Confirm the controller catalog number, Series B marking, installed battery condition, and maintenance procedure before replacement. Do not treat this battery as an approved substitute for other ControlLogix controller series.





