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The 1756-BA1 ControlLogix/FlexLogix Battery Assembly by Allen-Bradley is an industrial-grade lithium battery assembly fabricated exclusively for deployment within Allen-Bradley 1756-L55, 1756-L61, 1756-L62, 1756-L63, and 1794-L33 controllers.
High performance in an easy-to-use environment
Perform standard and safety control in the same chassis for a truly integrated system
Leverage the high-availability and extreme environment capabilities to meet your application needs
The 1756-BA1 utilizes a Sanyo Lithium Cylindrical SE Type Cell as its core energy storage mechanism. The electrical rating profile of this component features a 3V DC nominal terminal voltage alongside a 1800mAh nominal battery capacity. Containing metallic lithium elements within its chemistry, the assembly is configured with an integrated lead wire connector terminal to establish a direct, plug-in connection with the controller's internal circuit board. From an environmental and operational perspective, the 1756-BA1 functions across a temperature range from -40°C to 60°C.
For inventory preservation, the assembly requires warehouse storage maintained near 30°C. In live field installations, the maintenance interval is directly determined by localized thermal conditions. Specifically, if the temperature of the machinery structure located exactly 1 inch below the 1756-BA1 chassis exceeds 30°C, a mandatory replacement must be executed within 3 years. Because elevated heat accelerates internal chemical depletion, higher surrounding temperatures shorten the operational lifespan, necessitating earlier replacement to prevent data loss in the volatile memory.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1756-BA1 ControlLogix FlexLogix Battery Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Power & Energy Industry
Secures logic interlock control programs within the 1756-L6X controller during power generator operations, preventing core control parameter loss during main power failures.
Oil & Gas Extraction
Continuously maintains PID tuning parameters in the memory at remote drilling rigs or pipeline pumping stations, ensuring immediate monitoring recovery after unplanned power outages.
Petrochemical & Refining
Protects recipe data within complex cracking reactor process flows, ensuring the controller's historical register data remains intact during plant-wide maintenance shutdowns.
Automotive Manufacturing
Retains multi-axis coordinated position coordinates on body stamping and robotic welding assembly lines, preventing mechanical arm origin loss and line downtime caused by power loss.
Steel & Metallurgy
Locks emergency safety shutdown trigger procedures in blast furnace ironmaking and continuous casting control systems, safeguarding low-level hardware safety interlocks under extreme power loss.
Pharmaceutical Industry
Completely preserves continuous process batch records in GMP-compliant sterile compounding and fermentation control systems, preventing batch audit trail failures caused by power loss.
When replacing the battery, the PLC controller must remain powered up in the chassis, otherwise unplugging the old battery will instantly clear the memory programs and data. Verify the keyed plug orientation before connecting the new battery; forcing the connection, recharging, short-circuiting, or exposing this primary lithium battery to high heat is strictly prohibited. Additionally, field replacement must be performed promptly once the BATT light turns red (low battery) or within two years of operation to secure the continuity of the backup power pathway.
The 1756-BA1 is a 3V DC lithium battery cell with a keyed wire connector for Logix5555/563 processors. It backs up volatile RAM data during power outages within an operating range of -40°C to 60°C.
The 1756-BA1 is a 3.0V industrial lithium battery (with lead wire and connector) manufactured by Rockwell Allen-Bradley.
Which system uses the 1756-BA1?
It is used for early Rockwell ControlLogix 1756 series PLC processors (including 5550, 5553, 5555, and 1756-L6x Series A) as well as FlexLogix 1794-L33 controllers.
What role does the 1756-BA1 play in the controller?
During site power outages, it provides backup power to the controller's volatile memory (RAM) to prevent the loss of user programs and internal data.
How to install the 1756-BA1 on a PLC module?
Open the front cover of the controller, place the battery into the dedicated slot, and press the harness plug into the controller's battery interface until locked.
What precautions are needed when replacing the 1756-BA1?
The chassis backplane must remain powered up during replacement. If the battery is disconnected while the main system power is off, the volatile memory will clear instantly.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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