Allen-Bradley 1747-BA SLC 500 Lithium Battery 3V

1747-BA Battery by Allen-Bradley for SLC 500 Processors

Product Introduction

The Allen-Bradley 1747-BA is a lithium backup battery engineered specifically for the SLC 500 processor family. This 3-volt power source maintains the contents of the processor's RAM memory when the main system power is turned off or interrupted.

Without a functional battery, your SLC 500 controller risks losing its user program and configuration data. The 1747-BA eliminates this risk, providing reliable memory retention that keeps your automation system ready for operation at all times.

This battery is non-rechargeable and must be replaced periodically. The processor's battery LED illuminates when voltage drops below acceptable levels, providing a clear warning well before data loss occurs.

Technical Specifications

The 1747-BA lithium battery is a straightforward yet essential component. Its specifications are detailed below:

• Voltage: 3 Volts DC

• Battery Type: Lithium (non-rechargeable)

• Lithium Content: 0.23 grams per battery

• Connector Type: 6-pin Phoenix connector

• Cable Type: Belden 9463 (compatible)

• Backplane Current (5V DC): 375 milliamps (when installed)

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

• Dimensions: 5.72 x 1.37 x 5.15 inches (145 x 35 x 131 mm)

• Weight: 0.37 pounds (168 grams)

Backup Duration by Processor Model

The service life of the 1747-BA varies depending on the specific SLC 500 processor it supports. Refer to the following estimates:

These durations assume normal operating conditions and proper storage of spare units.

Storage and Handling Guidelines

Proper storage of the 1747-BA maximizes its shelf life and ensures reliable performance when installed. Follow these recommendations:

• Temperature: Store at 20–25 °C (68–77 °F)

• Relative Humidity: Maintain at 40–60%

• Environment: Keep in a cool, dry location away from water, rain, snow, frost, or dew

• Monitoring: Regularly check temperature and humidity levels in the storage area

Handling Precautions:

• Do not short-circuit, disassemble, damage, heat, or burn the 1747-BA

• Avoid piling or mixing batteries together

• Never place the battery on metal objects, plates, or antistatic materials

• When replacing used batteries in multi-cell applications, replace all units simultaneously with fresh ones

Shipping and Regulatory Information

The 1747-BA contains 0.23 grams of lithium per cell. This classification has shipping implications:

• Up to two batteries may be shipped together within the United States under standard regulations

• International shipments must comply with local and UN regulations for Class 9 Dangerous Goods

• Transportation must meet UN recommendations for lithium metal cells and batteries

Always consult with your shipping carrier for current lithium battery transportation requirements before dispatching these components.

Packaging List

Your shipment includes the following items:

• (1) Allen-Bradley 1747-BA Lithium Battery with pre-attached 6-pin connector and cable

Frequently Asked Questions (FAQ)

1. How do I know when to replace the 1747-BA battery?
The processor's battery LED illuminates when voltage becomes low. This provides an early warning, typically giving you several weeks to schedule a replacement before data loss occurs.

2. Is the 1747-BA rechargeable?
No, the 1747-BA is a non-rechargeable lithium battery. Attempting to recharge it may cause damage or create a safety hazard. Always replace it with a new unit.

3. Can I ship multiple 1747-BA batteries together?
Within the United States, up to two batteries may be shipped together. For larger quantities or international shipments, consult your carrier and comply with applicable Class 9 Dangerous Goods regulations.

4. What happens if I remove the processor from the chassis?
The 1747-BA continues to provide backup power to the processor's memory even when removed from the chassis, as long as the battery remains connected.

5. How should I dispose of a used 1747-BA battery?
Do not incinerate or dispose of the 1747-BA in general waste. Follow local environmental regulations for lithium battery recycling or disposal. Many regions have dedicated collection programs for hazardous materials.