Allen-Bradley 1769-BA 3V Lithium Battery for CompactLogix L2/L3 (New & Original)

Allen-Bradley 1769-BA 3V Lithium Battery | Reliable Automation Component

Field Application & Operational Analysis

From a Site Reliability Engineer’s perspective, the Allen-Bradley 1769-BA is far more than a consumable — it is a mission-critical safeguard embedded within CompactLogix L2 and L3 series controllers. The 1769-BA maintains volatile memory retention and real-time clock accuracy during unplanned power interruptions, directly contributing to system availability and process optimization across continuous manufacturing environments. Facilities operating 24/7 production lines cannot afford the downtime associated with program loss or clock drift; this component eliminates that risk.

Engineered for operational excellence in demanding industrial settings, the Allen-Bradley 1769-BA withstands ambient temperatures from 0°C to 60°C and is rated for installation in environments subject to vibration, humidity fluctuation, and electrical noise. During installation, technicians should observe polarity markings carefully and complete the hot-swap procedure within 30 seconds while the controller remains energized to prevent any memory disruption. Proper torque on the retention clip ensures long-term contact integrity.

As a proven automation component within the 1769 ecosystem, the 1769-BA is widely stocked as a critical spare in preventive maintenance programs. System integrators and plant engineers consistently specify it for both new deployments and legacy controller refurbishments, recognizing that a $60 battery protects thousands of dollars in programmed logic and production continuity.

Key Operational Features

Mission-Critical Memory Protection — Retains user programs, data files, and I/O configuration parameters during power loss or scheduled shutdowns.
Real-Time Clock Continuity — Preserves timestamping accuracy for event logging, batch tracking, and production scheduling without drift.
Seamless Integration — Drop-in replacement for CompactLogix 1769-L2x and 1769-L3x controllers; no firmware changes or reconfiguration required.
High Availability Design — Supports hot-swap replacement while controller remains powered, eliminating planned downtime for battery maintenance.
Redundancy-Ready — Compatible with redundant controller architectures where backup memory integrity is a system-level requirement.
Extended Service Life — Rated 5+ years under normal operating conditions; 10+ year shelf life in controlled storage environments.

Maintenance & Performance Benchmarks

The 1769-BA integrates seamlessly into both small-scale standalone controller deployments and large distributed I/O network architectures. In single-controller installations, it provides straightforward memory backup with minimal maintenance overhead. In multi-node system integration environments — where dozens of CompactLogix controllers are networked via EtherNet/IP — the 1769-BA becomes a standardized spare part that simplifies inventory management and reduces mean time to repair (MTTR).

Performance benchmarks confirm that the lithium cell maintains a stable 3V output throughout its service life, with voltage drop occurring only in the final 5-10% of battery capacity. This characteristic provides ample warning time via the controller’s low-battery fault indicator before any risk of data loss. For facilities implementing condition-based maintenance strategies, battery voltage monitoring can be integrated into existing SCADA or asset management platforms to automate replacement scheduling and support operational excellence goals.

Comprehensive Data Sheet

| Attribute | Technical Data | |—|—| | Part Number | 1769-BA | | Manufacturer | Allen-Bradley (Rockwell Automation) | | Product Series | CompactLogix 1769 | | Battery Chemistry | 3V Lithium (Li-MnO ) | | Nominal Voltage | 3V DC | | Compatible Controllers | CompactLogix 1769-L2x, 1769-L3x series | | Operating Temperature | 0°C to 60°C (32°F to 140°F) | | Storage Temperature | 40°C to 85°C | | Rated Service Life | 5+ years (normal operating conditions) | | Shelf Life | 10+ years (stored below 25°C, dry environment) | | Mounting | Integrated controller slot mount | | Hot-Swap Capable | Yes (within 30 seconds, controller energized) | | Low Battery Indicator | Controller status LED fault signal | | Weight | 0.54 kg (packaged) | | Certifications | UL Listed, CE Compliant | | Condition | New & Original Factory Stock |

Professional Logistics & Sourcing Excellence

Every Allen-Bradley 1769-BA unit shipped from our inventory is sourced directly from authorized distribution channels and arrives in original factory packaging with full traceability documentation. For urgent maintenance scenarios, same-day dispatch is available on in-stock orders placed before the daily cut-off time — a critical capability when production lines are at risk.

Our global supply network is specifically structured to support end-of-life (EOL) and legacy module procurement, ensuring that facilities running older CompactLogix L2/L3 infrastructure can source genuine replacement batteries without compromising on authenticity or quality. Worldwide express logistics options are available to all major industrial regions, with typical transit times of 3-7 business days for international destinations. All shipments include commercial invoice documentation suitable for customs clearance.

Engineering Support & FAQ

Q1: What is the correct installation procedure for the 1769-BA?
A: Power the controller and locate the battery slot on the left side of the CompactLogix L2/L3 unit. Remove the old battery by releasing the retention clip, insert the new 1769-BA observing the polarity markings, and secure the clip. Complete the swap within 30 seconds to maintain memory integrity. No controller restart is required.

Q2: Which firmware versions are compatible with the 1769-BA?
A: The 1769-BA is a hardware component with no firmware dependency. It is compatible with all firmware revisions of CompactLogix 1769-L2x and 1769-L3x controllers. Firmware version does not affect battery function or compatibility.

Q3: How is the warranty claim process handled?
A: All units carry a 1-year warranty covering manufacturing defects. To initiate a claim, contact sale@ninermas.com with your order number, a description of the fault, and photographic evidence. Replacement units are dispatched upon verification, typically within 2-3 business days.

Q4: Can the 1769-BA be used in a redundant controller configuration?
A: Yes. In redundant CompactLogix architectures, each controller chassis requires its own 1769-BA battery. Both primary and secondary controllers must have functional batteries to ensure full redundancy and failover memory protection.

Q5: What happens if the battery is not replaced promptly after a low-battery warning?
A: The controller will continue to operate normally while powered. However, if a power interruption occurs after battery depletion, all user programs, data files, and real-time clock settings will be lost. Immediate replacement upon receiving the low-battery fault is strongly recommended.

Q6: Is the 1769-BA available for bulk or long-term supply agreements?
A: Yes. We support blanket purchase orders and scheduled delivery programs for facilities requiring ongoing preventive maintenance stock. Contact our team to discuss volume pricing and supply chain arrangements.

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