Allen Bradley 1756-BA1 ControlLogix Lithium Battery

Product Introduction

The Allen-Bradley 1756-BA1 is a ControlLogix lithium backup battery designed to maintain critical memory and system data in ControlLogix controllers during power loss or system shutdown. It plays a vital role in ensuring data retention for controller memory, configuration parameters, and runtime information, helping prevent data corruption and unexpected system behavior.

Designed specifically for ControlLogix platforms, the 1756-BA1 battery offers stable voltage output, reliable capacity, and industrial-grade temperature performance, making it suitable for continuous operation in demanding automation environments.

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Product Specifications

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Applications

• Used for retaining controller memory and configuration data during power outages

• Suitable for ControlLogix PLC systems requiring reliable non-volatile memory support

• Applied in continuous-process and discrete-manufacturing systems where data integrity is critical

• Commonly installed in automation systems with frequent power cycling or backup requirements

• Ideal for mission-critical control applications where unexpected data loss is unacceptable

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Advantages

• Stable 3 VDC output ensures reliable memory retention

• 1800 mAh capacity supports extended data backup duration

• Compact and lightweight design simplifies installation and replacement

• Wide industrial operating temperature range supports reliable field operation

• Native compatibility with ControlLogix controllers ensures seamless integration

• Designed for consistent long-term performance in industrial environments

FAQ

1. What is the primary function of the 1756-BA1 battery?
   It provides backup power to retain controller memory and configuration data when main power is lost.

2. Which ControlLogix devices use this battery?
   It is used in compatible ControlLogix controllers that require external lithium battery backup.

3. Does the battery power the controller during outages?
   No, it only maintains memory and data; it does not power I/O or CPU operation.

4. How does nominal voltage affect controller memory?
   A stable 3 VDC output ensures memory contents remain intact during power interruptions.

5. Can the battery be replaced while the controller is powered?
   Yes, replacement can typically be performed while the system is powered to avoid data loss.

6. Is the battery rechargeable?
   No, it is a non-rechargeable lithium battery designed for long-term backup use.

7. Does temperature affect battery performance?
   Yes, operating within the specified 0–60 °C range ensures reliable performance and capacity retention.

8. What happens if the battery voltage drops too low?
   Controller memory retention may be compromised, making timely replacement important.

9. Is special configuration required after battery replacement?
   No, normal operation resumes automatically if replacement is performed correctly.

10. Why is an original ControlLogix battery recommended?
    Using a compatible battery ensures correct voltage, capacity, and safe operation within the controller design.

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