1747-BA Lithium Battery for SLC 500 PLC Processor RAM Memory Backup

The 1747-BA is a lithium backup battery used for SLC 500 PLC processor memory retention. In many industrial control systems, the PLC processor stores program data, configuration data, and important machine information in RAM. When the main power is removed, a backup battery helps maintain this memory and reduces the risk of data loss during shutdown, maintenance, transport, or unexpected power interruption.

This battery is commonly used in SLC 500 fixed and modular controller systems, including SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processor families. It is suitable for factory maintenance teams, automation engineers, control cabinet service companies, machine builders, and spare parts buyers who need to maintain older PLC systems and reduce production downtime.

The 1747-BA is a replaceable lithium battery and is not designed to be recharged. When the battery voltage falls below the required level, compatible processors may show a BATT indicator warning. Replacing the battery in time helps protect controller memory and keeps the automation system ready for operation. For many maintenance departments, keeping this battery in spare parts inventory is a simple but important way to avoid unexpected PLC memory loss.

Before replacement, users should confirm the existing battery model, processor model, battery connector type, installation position, and machine shutdown procedure. It is also recommended to make sure that the PLC program is backed up before maintenance work. Some SLC 500 processors provide a short capacitor backup time while the battery is disconnected, but replacement should still be completed carefully and according to the maintenance procedure of the control system.

The 1747-BA is often ordered together with SLC 500 processors, I/O modules, power supplies, communication modules, terminal blocks, and related PLC spare parts. If you are not sure whether this battery matches your controller, you can send us a photo of the processor label, old battery label, control cabinet, or spare parts list. We can help check the correct model and related automation components for your maintenance project.

If you need the 1747-BA for urgent PLC repair, control cabinet maintenance, machine recovery, or spare parts stocking, please send the required quantity, product condition requirement, and delivery schedule. We can provide a fast quotation and help verify whether this battery is suitable for your existing SLC 500 control system.

Key Features

• Replaceable lithium battery for SLC 500 PLC systems
• Used for RAM memory backup and processor data retention
• Suitable for SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processor families
• Helps reduce risk of program or memory loss during power interruption
• Useful for control cabinet maintenance and PLC spare parts inventory
• Non-rechargeable battery, replaced when low battery warning appears
• Suitable for factory maintenance, machine service, and automation repair projects

Typical Applications

• SLC 500 PLC processor memory backup
• Control cabinet maintenance
• Machine downtime prevention
• PLC battery replacement
• Factory automation spare parts stocking
• Production line maintenance
• Packaging machinery control systems
• Material handling equipment
• Legacy PLC system repair
• Industrial automation service support

FAQ

Q1: What is 1747-BA used for?

1747-BA is used as a lithium backup battery for SLC 500 PLC processor memory retention. It helps maintain RAM memory and controller data when main power is removed.

Q2: Is 1747-BA rechargeable?

No. The 1747-BA is a replaceable primary lithium battery. It is not designed to be recharged and should be replaced when the battery is low or during preventive maintenance.

Q3: Which controllers commonly use 1747-BA?

The 1747-BA is commonly used with SLC 500 fixed and modular controller systems, including SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processor families. Please confirm the actual processor model before ordering.

Q4: When should I replace the 1747-BA battery?

The battery should be replaced when the processor shows a low battery warning, during scheduled preventive maintenance, or when the battery service life is uncertain. It is best to back up the PLC program before replacement.

Q5: Can data be lost if the 1747-BA battery is removed?

There is a risk of memory loss if the processor has no sufficient backup power during replacement. Some processors provide short capacitor backup time, but users should still follow the proper replacement procedure and keep a program backup before maintenance.

Q6: How do I confirm whether 1747-BA matches my PLC?

Please check the full battery model, processor model, connector type, and existing battery label. You can also send us photos of the old battery and PLC processor for model confirmation.

Q7: Can you supply related SLC 500 spare parts?

Yes. We can help check related SLC 500 processors, I/O modules, power supplies, communication modules, terminal blocks, batteries, and other industrial automation spare parts according to your maintenance requirement.