Allen-Bradley 1756-BATM ControlLogix Externally Mounted Battery Assembly Kit

Product Overview

The 1756-BATM serves as an externally mounted, high-capacity lithium battery assembly designed for the Allen-Bradley ControlLogix platform. This kit provides extended back-up power to the controller's non-volatile memory, safeguarding critical ladder logic, tag data, and system configurations during total power loss. It specifically supports high-demand L55 and L6x series processors that require longer hold-up times than standard internal batteries can provide. We supply this unit as 100% Brand New and factory-original, ensuring maximum chemical shelf-life and voltage stability for your automation assets.

Technical Specifications

The 1756-BATM utilizes high-energy-density lithium chemistry to maintain a stable voltage rail across extended durations.

Engineering Advantages

• Extreme Hold-Up Duration: With a 17,000 mAh capacity, the 1756-BATM offers significantly higher energy reserves compared to the standard 1756-BA1 or BA2 internal cells. This solves the industrial pain point of frequent battery depletion in facilities that experience long-term seasonal shutdowns.

• External Mounting Safety: This kit mounts externally to the controller, typically on the side of the chassis. This positioning facilitates easier maintenance and replacement without requiring the technician to reach into the internal processor housing, reducing the risk of accidental electrostatic discharge (ESD) to the CPU.

• Deep Memory Protection: The assembly maintains the RAM state for large-scale programs in high-performance L63 or L64 controllers. It ensures that the processor retains its state and avoids "dead battery" faults that lead to cleared memory and costly re-downloading procedures.

• Rugged Housing: The assembly features a specialized protective enclosure that shields the lithium cells from the vibration and mechanical shocks common in industrial machine cabinets, ensuring continuous electrical contact.

FAQs

• Does the 1756-BATM replace the internal battery?

  Yes. When you install the 1756-BATM, you disconnect the internal battery and plug the 1756-BATM cable into the processor's battery connector. This provides a much larger capacity reservoir for memory backup.

• How often should I replace the 1756-BATM?

  While the 17,000 mAh capacity lasts much longer than standard batteries, we recommend replacement every 2 to 3 years depending on the duration of power-off periods. Always check the "BATT" LED indicator on the ControlLogix processor; a red LED signals that you must replace the kit immediately.

• Is this a "Fresh" battery kit?

  Yes. Despite the manufacturer's discontinued status, we guarantee our 1756-BATM kits are 100% Brand New original stock. We monitor our inventory to ensure that the lithium cells maintain their nominal 3.6V output, preventing the "voltage dip" common in used or improperly stored surplus.

• What happens if the battery dies while the PLC is powered on?

  If the PLC remains powered by the 1756-PA72 or PB72 power supply, the controller will function normally but will trigger a "Battery Low" minor fault. The data is only at risk if the main power is lost while the battery is depleted.