Allen-Bradley 1756-BA2
Allen-Bradley 1756-BA2
Allen-Bradley 1756-BA2
Allen-Bradley 1756-BA2
Allen-Bradley 1756-BA2
Allen-Bradley 1756-BA2
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  • Lifecycle status

    End of Life
    Discontinued Date: December 31, 2027.
    Replacement: No planned Rockwell Automation replacement.

1756-BA2

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Allen-Bradley 1756-BA2 is a lithium battery assembly for Series B ControlLogix 1756-L6x controllers, preserving controller memory during power loss.
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Technical specifications for 1756-BA2

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-BA2
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix L6X Series B Lithium Battery Assembly
  • Stock:
    1
  • Controller compatibility:
    Series B 1756-L6x only
  • Chemistry:
    lithium
  • Operating temperature:
    0 - 60 ℃
  • Battery cell:
    One Duracell DL123A lithium cell
  • Lithium content:
    0.55 g
  • Short-term storage temperature:
    -45 to +85 °C for no more than 30 days
  • Recommended storage environment:
    25 °C; 40–60% relative humidity
  • Lithium Content:
    0.55 g
  • Function:
    Replacement Battery Backup
  • Battery Type:
    Hermetically sealed lithium battery assembly
  • Low-battery Indication:
    BAT indicator steady red
  • Low-battery Fault:
    Minor fault, Type 10, Code 10
  • Tariff Code:
    8507600090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Controller Match Battery Care Service Checks Application
  • Battery assembly specified for Series B 1756-L6x controllers
  • Supports retained controller memory during loss of normal power
  • Published operating range is 0–60 °C

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.

Availability: Exact condition, stock, price, and shipping time are confirmed during quotation.

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.

  • Confirm the 1756-L6x controller catalog number
  • Confirm the Series B marking
  • Do not substitute a battery by appearance alone
  • Use the controller's approved battery procedure
  • Observe the published environmental limits
  • Inspect controller battery status during maintenance
  • Check controller status before beginning battery service
  • Confirm the battery assembly is correctly seated and connected
  • Verify controller operation and retained memory after service
  • Memory-retention support for installed Series B controllers
  • Planned maintenance of legacy ControlLogix systems
  • Controller spare-parts planning where exact series compatibility is verified
Description

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.

Revisions

Revision Part #

Also known as

1756-BA2 Ser A
1756-BA2/A, Series A, Rev A
Alternative Names
1756-BA2 1756 BA2 1756BA2 Allen-Bradley 1756-BA2 Rockwell Automation 1756-BA2 ControlLogix 1756-BA2
Technical notes
1756-BA2 fits Series B 1756-L6x controllers only; verify the controller label before replacement and follow the approved battery-maintenance procedure.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Is Allen-Bradley 1756-BA2 suitable for every ControlLogix controller?
No. It is specified for Series B 1756-L6x controllers. Confirm the controller catalog number and its Series marking before ordering.
Does Allen-Bradley 1756-BA2 retain the whole control system during a power failure?
It provides controller backup support, not chassis or field-device power. Determine separately how the application handles loss of power to I/O and external equipment.
Can Allen-Bradley 1756-BA2 be exchanged while the controller is energized?
Follow the controller's official battery-replacement procedure and the site's electrical-safety rules. Do not assume live replacement is permitted for every installation.
Why is the controller Series important when ordering Allen-Bradley 1756-BA2?
The published compatibility is Series B-only. A similar battery can have different fit, connector, or support status on another controller series.
What symptom can indicate that Allen-Bradley 1756-BA2 needs attention?
Treat a controller low-battery indication or loss of retained information as a maintenance event and inspect the battery and controller documentation before service.
Is Allen-Bradley 1756-BA2 supplied with a controller?
Confirm the quotation line by line. A controller, battery, and spare battery are separate supply items unless the offer explicitly says otherwise.
Is there an official planned Rockwell replacement for Allen-Bradley 1756-BA2?
Rockwell Automation lists no planned RA replacement. Confirm the installed controller strategy before a long-term modernization decision.

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