TC-BATT03 51199942-300 | Honeywell | C300 Controller 3.6V NiMH Backup Battery

Product Description

The TC-BATT03 (51199942-300) is a high-capacity backup power assembly specifically engineered for the Honeywell Experion PKS C300 controller series. Unlike standard lithium primary cells, this module utilizes Nickel Metal Hydride (NiMH) chemistry to provide a rechargeable, long-duration energy reserve for the controller's volatile memory and real-time clock. This assembly is a critical system component, ensuring that in the event of a total power loss, the C300 processor retains its control strategy, IP configuration, and historical data buffers for a seamless recovery.

Technical Specifications

• Model Identification: TC-BATT03

• Associated Part Number: 51199942-300

• Battery Chemistry: Nickel Metal Hydride (NiMH)

• Nominal Voltage: 3.6 VDC

• Rated Capacity: 2200 mAh

• Architecture Compatibility: Honeywell C300 Controller Systems

• Physical Dimensions: 77.2 mm x 50.8 mm x 25.8 mm

• Net Weight: 0.315 kg

• Manufacturing Origin: USA

• Hardware Category: Backup Battery Assembly / PLC Power Support

Battery Management and System Integrity

The TC-BATT03 (51199942-300) is designed to be charged directly by the C300 controller hardware during normal operation. The 2200 mAh capacity provides a significantly longer backup window than earlier controller generations, which is vital for facilities located in regions with unstable power grids. To maintain the 3.6 VDC nominal output and overall cell health, the Honeywell system performs periodic battery health checks. Engineers should replace this assembly immediately if the "Battery Low" or "Battery Fault" status is reported in the Experion System Management Console to prevent data corruption during an unplanned outage.

Frequently Asked Questions

• Is this battery hot-swappable?

  Yes, the TC-BATT03 is designed to be replaced while the C300 controller is powered and operational. This ensures the backup circuit is never interrupted while the main power is present.

• How often should this NiMH assembly be replaced?

  Under standard operating temperatures, these batteries typically have a service life of 3 to 5 years. However, high-temperature environments in control cabinets may accelerate the aging process, necessitating more frequent replacement.