Skip to content

What are you looking for?


You may also like

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

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


Only 10 left - Selling fast

PRODUCT SKU : TC-BATT03 51199942-300

PRODUCT TYPE : Backup Battery

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

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.

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




Recently Viewed Products

Tech & Buying Guide

Technical Insights, Installation Guides, and Buying Tips
Navigating Industrial Automation Failures: Types, Causes, and Mitigation Strategies

Navigating Industrial Automation Failures: Types, Causes, and Mitigation Strategies

Modern manufacturing relies heavily on automated control systems to maximize throughput and maintain product quality. However, unplanned downtime in industrial automation can cost facility operators thousands of dollars per hour. Understanding how programmable logic controllers (PLCs), distributed control systems (DCS), and field instrumentation fail empowers engineering teams to implement robust preventive maintenance strategies.

Read more
Essential Motion Control Commands: A Practical Guide for Engineers

Essential Motion Control Commands: A Practical Guide for Engineers

Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.

Read more
The Role of Intrinsic Safety Barriers in PLC and DCS Architectures

The Role of Intrinsic Safety Barriers in PLC and DCS Architectures

Implementing robust protection in hazardous industrial environments represents a fundamental safety requirement in factory automation. Process facilities often handle volatile gases, dusts, and chemical agents that pose significant combustion risks. Consequently, control system engineers must deploy energy-limiting interfaces to isolate safe-area control cabinets from hazardous-area field instrumentation. This article examines the function, selection, and electrical principles of intrinsic safety barriers within modern PLC and DCS networks.

Read more