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- Lithium-ion Battery
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Product Overview
The Allen-Bradley 1763-BA Replacement Lithium Battery is a dedicated backup battery designed for the Allen-Bradley MicroLogix 1100 programmable logic controller. Manufactured for Rockwell Automation’s MicroLogix control platform, this battery helps preserve important controller information when the main power supply is disconnected.
In industrial automation systems, PLCs store programs, configuration parameters, and other operational data required for machine control. Depending on the controller design and memory architecture, a backup battery may be used to maintain designated memory functions during a power interruption. The 1763-BA provides this backup function for compatible MicroLogix 1100 controllers.
The battery is a non-rechargeable lithium replacement assembly with a wired connector designed for installation in the controller’s dedicated battery compartment. Its nominal voltage is 3 V, and commonly listed capacity is 850 mAh. The connector and physical arrangement are important because this battery is designed for a specific controller family rather than being a universal PLC battery.
The 1763-BA is particularly relevant to maintenance teams operating existing MicroLogix 1100 installations. Replacing a weak or disconnected battery at the appropriate time helps reduce the risk of losing retained information and supports reliable controller maintenance.
Rockwell Automation discontinued this catalog number on April 1, 2022. Therefore, buyers should verify the product’s condition, manufacturing date, packaging, and connector compatibility when sourcing replacement stock.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 1763-BA |
| Product Type | Replacement Lithium Battery |
| Compatible Controller | MicroLogix 1100 |
| Controller Series | Bulletin 1763 |
| Battery Chemistry | Lithium |
| Nominal Voltage | 3 V DC |
| Commonly Listed Capacity | 850 mAh |
| Rechargeable | No |
| Battery Function | Controller memory backup |
| Connection | Wired connector |
| Installation | Dedicated battery compartment |
| Dimensions Provided | 55 × 30 × 45 mm |
| Weight Provided | 0.1 kg |
| Product Lifecycle | Discontinued |
| Discontinuation Date | April 1, 2022 |
| Typical Application | MicroLogix 1100 PLC memory retention |
Note: The supplied dimensions and weight are listing values and may describe the packaged battery assembly rather than the internal cell alone. Confirm the actual product and packaging measurements before using them for shipping calculations.
Function and Working Principle
The 1763-BA supplies backup energy to designated memory-retention functions in a compatible MicroLogix 1100 controller. It is not intended to power the PLC’s normal operation or operate connected machinery during a mains failure.
1. Memory Backup During Power Interruption
A PLC may need to retain important information when its main power supply is removed. The backup battery provides a separate energy source for the memory-retention functions supported by the controller.
This helps preserve relevant stored information during power interruptions and maintenance activities.
2. Support for Controller Data Retention
The MicroLogix 1100 uses the 1763-BA as its designated replacement lithium battery. The battery supports the controller’s memory-retention arrangement and helps reduce the risk of data loss associated with a depleted or disconnected battery.
The exact memory behavior depends on the controller’s architecture and configuration. The battery should not be regarded as a substitute for regularly backing up PLC programs and important configuration files.
3. Wired Connector Installation
The 1763-BA is supplied as a battery assembly with connecting wires and a dedicated connector. It fits into the controller’s designated battery compartment.
The correct connector orientation and wire routing are important. Improper installation can prevent the battery from making a reliable electrical connection.
4. Non-Rechargeable Lithium Technology
The 1763-BA is a primary lithium battery and is not designed to be recharged. It should be replaced when the controller indicates a low-battery condition or when maintenance inspection identifies a problem.
Attempting to recharge or modify a non-rechargeable lithium battery can create safety risks and should be avoided.
Role in Industrial Control Systems
Although the 1763-BA is a small accessory, it supports an important maintenance function in PLC-based automation systems.
PLC Memory Retention
The MicroLogix 1100 controller manages machine logic, input and output operations, and automation sequences. Its backup battery supports designated memory-retention functions when normal power is unavailable.
Maintaining the correct battery condition helps protect the controller’s stored information.
Production Equipment Availability
Unexpected battery failure can create additional maintenance work, particularly when a controller’s stored information needs to be restored or verified.
Replacing the battery when the low-battery indication appears helps maintenance personnel address the issue before it becomes a more serious equipment problem.
Maintenance Planning
The 1763-BA should be included in spare-parts planning for facilities that continue to operate MicroLogix 1100 controllers. Since the original part has been discontinued, maintenance teams should identify suitable replacement stock and verify the exact catalog number before installation.
Industrial Applications
The 1763-BA is primarily used in industrial control installations built around compatible MicroLogix 1100 PLCs.
1. Manufacturing Automation
Manufacturing equipment often uses PLCs to manage machine sequences, sensor signals, actuators, and production operations. The 1763-BA supports the controller’s designated memory-retention function during power interruptions.
2. Packaging Machinery
Packaging machines use PLC logic to coordinate feeding, filling, sealing, labeling, and product transfer. Maintaining controller memory is an important part of routine maintenance for these systems.
3. Conveyor Control Systems
MicroLogix 1100 controllers may be used in conveyor applications to coordinate motor commands, sensor inputs, and material-handling sequences. The backup battery supports the controller’s memory-retention requirements.
4. Process Control Equipment
Small process-control installations may use MicroLogix controllers to manage pumps, valves, alarms, and auxiliary equipment. Maintaining the correct battery condition helps support the controller’s data-retention arrangement.
5. Industrial Equipment Maintenance
The 1763-BA is also relevant to maintenance departments responsible for older PLC installations. Keeping the correct replacement battery available can help reduce delays during scheduled servicing and troubleshooting.
Installation and System Integration
Correct battery installation is essential for reliable memory backup and safe maintenance.
1. Confirm Controller Compatibility
Before purchasing, verify that the installed controller is an Allen-Bradley MicroLogix 1100 from the 1763 family.
Do not assume that another Allen-Bradley PLC battery is interchangeable. Different controller families may use different connectors, battery assemblies, and electrical specifications.
2. Check the Battery Condition
Inspect the replacement battery packaging and assembly before installation. Check for visible damage, corrosion, leakage, or damaged wires.
For stored lithium batteries, manufacturing date and storage conditions are also important considerations.
3. Follow the Controller Installation Procedure
The battery should be inserted into the dedicated battery compartment with its wires positioned as specified in the controller manual.
Connect the battery wire connector to the corresponding controller connector and secure the wires along the designated wire guide.
Do not force the connector or modify the wiring to make an incompatible battery fit.
4. Observe the Battery Low Indicator
The MicroLogix 1100 controller provides a Battery Low indication. According to the controller manual, when this indicator illuminates, the battery connector should be checked and the battery replaced promptly if necessary.
The manual states that the controller is designed to operate for up to approximately two weeks after the low-battery indication first appears. This should not be treated as a guaranteed replacement window. Replace the battery as soon as practical.
5. Verify Controller Operation
After installation, check that the battery connector is secure and that the Battery Low indication has cleared as expected.
Verify the controller’s operating status and confirm that important programs and configuration data are available. Maintain independent backups of PLC programs rather than relying exclusively on battery retention.
Compatible System Components
| Component | Function | Compatibility Considerations |
|---|---|---|
| MicroLogix 1100 PLC | Executes machine-control logic | Primary controller platform for the 1763-BA |
| 1763 controller battery compartment | Holds the replacement battery | Use the designated installation position |
| Battery wire connector | Connects the battery to the controller | Connector type and polarity must match |
| PLC power supply | Provides normal operating power | Separate from the battery backup function |
| PLC programming software | Used to configure and maintain controller logic | Maintain independent program backups |
| Industrial control cabinet | Protects the PLC and associated wiring | Keep the battery and controller within suitable environmental conditions |
The 1763-BA is a dedicated replacement battery, not a general-purpose power supply. It should not be used as a substitute for the PLC’s normal operating power source.
Alternative Models and Replacement Considerations
The 1763-BA is designed for the MicroLogix 1100 controller. Other Allen-Bradley battery catalog numbers may use similar lithium cells but have different assemblies and connectors.
| Model or Option | Description | Replacement Considerations |
|---|---|---|
| 1763-BA | MicroLogix 1100 replacement lithium battery | Original designated battery for compatible MicroLogix 1100 controllers |
| 1769-BA | CompactLogix replacement battery | Different controller family and connector arrangement |
| 1747-BA | SLC 500 / MicroLogix-related battery applications | Verify the exact controller compatibility before use |
| Approved 1763-BA replacement assembly | Aftermarket replacement | Confirm voltage, capacity, connector, dimensions, and installation requirements |
A similar voltage or battery-cell size does not automatically make another battery compatible. Always verify the complete assembly and connector against the controller documentation.
Key Advantages
Dedicated MicroLogix 1100 Compatibility
The 1763-BA is specifically identified as the replacement lithium battery for the MicroLogix 1100 controller family.
Memory-Retention Support
It provides backup power for the controller’s designated memory-retention functions during interruptions to normal power.
Compact Battery Assembly
The wired battery assembly is designed for installation in the controller’s dedicated battery compartment.
Simple Replacement Procedure
The battery can be replaced through the controller’s designated battery compartment by following the manufacturer’s installation instructions.
Non-Rechargeable Lithium Design
Its primary lithium construction is intended for backup use rather than repeated charging.
Useful for Legacy PLC Maintenance
The part remains relevant to facilities maintaining existing MicroLogix 1100 installations, even though the original catalog number has been discontinued.
Technical FAQs
1. What is the Allen-Bradley 1763-BA used for?
The 1763-BA is a replacement lithium battery for MicroLogix 1100 PLCs. It supports designated controller memory-retention functions when normal power is disconnected.
2. Which PLC is compatible with the 1763-BA?
It is designed for the Allen-Bradley MicroLogix 1100 controller family, identified by Bulletin 1763.
3. What is the nominal voltage?
The commonly listed nominal voltage is 3 V DC.
4. What is the battery capacity?
Common product specifications list a capacity of 850 mAh. Verify the exact specification against the supplied battery assembly.
5. Is the 1763-BA rechargeable?
No. It is a non-rechargeable lithium battery. It must not be connected to a charger.
6. When should the battery be replaced?
Replace it when the controller’s Battery Low indicator illuminates or when inspection identifies a battery or connector problem. Rockwell Automation recommends prompt replacement after the indicator appears.
7. Can the 1763-BA be used with CompactLogix controllers?
No. The 1763-BA is designed for the MicroLogix 1100. CompactLogix controllers use their own designated battery assemblies, such as the 1769-BA for applicable models.
8. Does the battery power the PLC during a power failure?
No. It is intended for designated memory-retention functions, not for operating the PLC, its outputs, or connected machinery.
9. Is the 1763-BA still manufactured?
Rockwell Automation discontinued the 1763-BA on April 1, 2022. Replacement stock may be available through industrial spare-parts suppliers, but its condition and storage history should be checked.
10. What should be checked before purchasing?
Verify the complete catalog number, nominal voltage, battery capacity, connector configuration, physical condition, manufacturing date, and packaging. Confirm compatibility with the specific MicroLogix 1100 controller before installation.
Procurement and Maintenance Recommendations
The 1763-BA is a discontinued industrial PLC battery, so purchasing decisions should focus on authenticity, compatibility, and storage condition.
When sourcing this part, confirm that the catalog number is 1763-BA and that the battery assembly has the correct connector for the MicroLogix 1100. Check the packaging for damage and request manufacturing-date information where available.
Lithium batteries can gradually lose capacity during storage. A product that has remained in stock for an extended period may not provide the same service life as a recently manufactured battery. For this reason, storage history and supplier handling are important considerations.
During routine maintenance, monitor the controller’s Battery Low indication and inspect the battery connection. Keep independent backups of PLC programs and configuration files, and document battery replacement as part of the equipment maintenance record.
Follow the manufacturer’s handling, installation, and disposal instructions. Do not recharge, puncture, dismantle, or expose the battery to excessive heat. Dispose of used lithium batteries through an appropriate battery collection or recycling process.
Conclusion
The Allen-Bradley 1763-BA Replacement Lithium Battery is a dedicated backup battery for MicroLogix 1100 programmable logic controllers. With a commonly listed rating of 3 V DC and 850 mAh, it supports the controller’s designated memory-retention functions when normal power is unavailable.
Its dedicated wired connector and controller-specific design make accurate model identification essential. Although Rockwell Automation discontinued the original 1763-BA in April 2022, it remains an important spare part for maintaining existing MicroLogix 1100 installations.