Product Overview

ABB 4943013-6 is classified as a backup battery and is associated with compatible AC 800M processor modules. Its purpose is to provide a backup energy source for memory retention where the controller design requires one. It is a battery accessory rather than a processor, communication interface, or standalone automation controller.

The product uses lithium-thionyl chloride chemistry, commonly abbreviated as Li-SOCl2. This primary battery technology is designed for applications requiring a compact power source with a long service life under suitable operating conditions. The battery is not rechargeable, so it must not be treated like a rechargeable battery pack or connected to an external charging system.

For industrial maintenance and spare-parts management, the complete part number is an important identification reference. Using ABB 4943013-6 helps distinguish the required battery from cells with similar dimensions but different electrical characteristics, chemistry, terminals, or intended applications.

Technical Specifications

The principal published characteristics of ABB 4943013-6 include a nominal voltage of 3.6 V, lithium-thionyl chloride chemistry, and a 1/2 AA cell format. The specified dimensions are approximately 14.5 mm in diameter and 25 mm in length. These details provide a useful starting point for checking the product against the requirements of the installed controller.

• Manufacturer: ABB
• Product number: 4943013-6
• Product type: Backup battery
• Battery chemistry: Lithium-thionyl chloride (Li-SOCl2)
• Nominal voltage: 3.6 V
• Cell format: 1/2 AA
• Rechargeable: No
• Primary application: Memory backup for compatible ABB processor modules

These specifications should be considered together rather than used individually to select an alternative. Physical size and nominal voltage alone do not establish compatibility. Terminal configuration, battery construction, discharge characteristics, and the controller manufacturer’s requirements must also be considered when identifying a suitable replacement.

Memory Backup in Industrial Controllers

Industrial controllers store information required for their configured operation. Depending on the controller architecture, certain memory functions may require backup power when the normal supply is unavailable. A designated backup battery helps support the memory retention function specified for the corresponding processor hardware.

In a distributed control environment, maintaining the intended controller configuration is important for plant operation and maintenance planning. Battery condition is therefore one of the items that technical personnel may need to consider during scheduled inspection or controller servicing. The actual effect of a depleted battery depends on the processor design, memory architecture, and applicable system configuration.

The ABB 4943013-6 should not be assumed to provide general power to the entire controller, communication network, or connected field devices. Its role is specifically associated with memory backup in compatible processor systems. Other controller functions depend on their respective power supplies and hardware components.

Compatibility with ABB AC 800M Processors

ABB documentation identifies the 4943013-6 battery for memory backup in a range of processor modules, including PM810, PM825, PM851, PM856, PM860, PM861, PM864, PM865, and PM866. These designations provide a useful reference when checking requirements for an existing AC 800M installation.

Compatibility should always be confirmed against the precise processor model and the applicable hardware documentation. A controller family may contain different processor versions and assembly configurations, so a shared platform name does not automatically guarantee that every battery arrangement is identical.

Before selecting a replacement, identify the processor model, examine the installed battery designation, and review the manufacturer’s instructions for that hardware revision. Where the battery is included in a processor package, confirm whether the requirement concerns the individual battery or a complete controller assembly. This distinction helps prevent ordering errors and simplifies maintenance planning.

Installation and Replacement Considerations

Battery replacement should follow the instructions specified for the installed ABB processor. Before beginning work, personnel should identify the controller model, understand the memory retention requirements, and determine whether the system must remain powered during the procedure. The correct method depends on the particular hardware and must not be inferred from the battery type alone.

Technicians should observe site safety procedures and the manufacturer’s requirements for electrical isolation, handling, and controller servicing. The battery must be installed with the specified polarity and connection arrangement. An incorrect connection or unsuitable substitute can affect the intended backup function and may damage equipment.

After replacement, follow the documented verification procedure for the processor. Confirm that the battery is correctly seated and that the controller reports an appropriate status where such diagnostics are available. Any additional checks should follow the applicable system maintenance instructions rather than relying solely on the physical installation of a new cell.

Maintenance and Battery Management

A structured maintenance program can help industrial facilities manage backup batteries consistently. Maintenance records should identify the installed processor, battery part number, replacement date, and any relevant diagnostic observations. These records provide useful information when planning future inspections and troubleshooting unexpected controller messages.

Battery service life depends on factors such as operating temperature, storage conditions, the connected equipment’s electrical requirements, and the specific battery construction. A universal replacement interval should not be assumed. Follow the controller manufacturer’s recommendations and any site-specific maintenance schedule when determining inspection and replacement requirements.

Because ABB 4943013-6 is a primary lithium battery, it must not be recharged, short-circuited, crushed, or exposed to conditions outside its specified limits. Used cells should be handled and disposed of in accordance with applicable battery regulations and local environmental requirements. Appropriate handling helps reduce risks associated with lithium battery products.

Product Identification and Selection

When sourcing this component, use the full product number ABB 4943013-6 and verify the battery chemistry, nominal voltage, format, and intended memory backup application. These details are more reliable than selecting a cell based only on its physical appearance or dimensions.

Substituting another 3.6 V battery without checking the manufacturer’s requirements is not recommended. Cells with the same nominal voltage can differ in chemistry, terminal arrangement, discharge behavior, and suitability for the intended controller. Any alternative should be evaluated against the relevant ABB documentation before use.

Accurate product identification also helps procurement teams maintain consistent records and reduces confusion between processor accessories and unrelated industrial batteries. For installations with several controller types, checking each processor’s documentation is especially important because battery requirements may vary between hardware generations.

Conclusion

The ABB 4943013-6 Backup Battery is a 3.6 V, non-rechargeable lithium-thionyl chloride cell intended for memory backup in compatible ABB AC 800M processor systems. Its compact 1/2 AA format and defined electrical characteristics make correct identification important when planning maintenance or replacing a battery in an existing controller.

By verifying the full part number, confirming compatibility with the installed processor, and following the manufacturer’s handling and replacement instructions, engineers and maintenance teams can manage this component more effectively. Careful battery selection and maintenance help support the intended memory retention function within the wider industrial automation system.