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Mitsubishi Q6BAT lithium backup battery for MELSEC-Q series PLCs

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Mitsubishi Q6BAT

by Mitsubishi Electric

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OverviewThe Mitsubishi Q6BAT is a crucial 3.6V lithium backup battery designed to maintain memory retention for your Mitsubishi MELSEC-Q series PLCs. In industrial environments, unforeseen power interruptions can lead to costly data loss and system downtime. The Q6BAT serves as a reliable safeguard, ensuring that vital user programs, parameters, and operational data remain secure and readily available, even during complete power outages. Its compact form factor and straightforward installation make it an essential component for sustaining the integrity and continuous functionality of your control systems.Key Features Voltage Rating: 3.6V DC, precisely calibrated for MELSEC-Q PLC power needs. Battery Type: High-performance Lithium (non-rechargeable) for enduring dependability. Compatibility: Engineered for seamless integration across all Mitsubishi MELSEC-Q series CPUs. Function: Provides crucial backup power to the PLC's RAM, preventing data loss. Installation: Features a simple plug-and-play design, enabling fast and easy maintenance. Mounting: Designed for convenient placement within the DIN rail space inside the CPU module or base unit. Shelf Life: Offers an impressive typical shelf life of 10 years, ensuring long-term preparedness. Environment: Fabricated to industrial standards, guaranteeing consistent performance in demanding operating conditions. Technical Specifications Catalog Number: Q6BAT Voltage: 3.6V DC Battery Chemistry: Lithium (non-rechargeable) Compatibility: All MELSEC-Q series CPUs Retention Function: Preserves user memory during power loss Expected Life: Approximately 5 years under typical operating conditions Mounting Location: Dedicated battery slot in the CPU module or base unit Operating Temperature: 0°C to 60°C Dimensions: Compact cylindrical design for efficient use of space Disposal: Adhere to local battery recycling guidelines for environmental responsibility. ApplicationsThe Mitsubishi Q6BAT is a vital component across diverse industrial applications where data integrity and system reliability are paramount: Memory Backup for PLC Systems: Essential for protecting operational programs and configurations in all MELSEC-Q based automation systems. Prevent Data Loss in Unexpected Shutdowns: Ensures continuous operation and rapid recovery following power disturbances. Industrial Control Systems: Ideal for preserving critical process data in manufacturing, energy, and material handling sectors. Automation Panels and PLC Cabinets: An integral part of any robust control panel design, providing an additional layer of system resilience. Preventive Maintenance for System Reliability: A standard replacement part to ensure the long-term, uninterrupted performance of your MELSEC-Q PLCs. Why Choose This Model? Essential for System Integrity: The Q6BAT is more than an accessory; it's a fundamental safeguard that retains user programs and critical data during power outages, averting operational disruptions. High Reliability: Constructed with a trusted lithium cell, this battery is engineered for an extended and reliable operational life, reducing the need for frequent replacements. Simple Installation: Designed with maintenance efficiency in mind, its quick-swap mechanism allows for rapid and effortless replacement, minimizing downtime and labor costs. Wide Compatibility: Guaranteed to support all compatible CPUs within the extensive Mitsubishi MELSEC-Q family, offering versatile application across your existing infrastructure. Cost-Effective Protection: Investing in the Q6BAT is a proactive measure that avoids the substantial costs associated with system downtime, data corruption, and the time-consuming process of reprogramming PLCs after power loss. Order NowEnsure the unwavering reliability and data integrity of your industrial automation systems with the Mitsubishi Q6BAT backup battery. This critical component is available for immediate purchase to fortify your operations.FAQHow often should the Mitsubishi Q6BAT battery be replaced?Under normal operating conditions, the Mitsubishi Q6BAT has an expected life of approximately 5 years. Regular inspection and replacement as part of your preventive maintenance schedule are recommended to ensure continuous system reliability.Is the Q6BAT compatible with all Mitsubishi MELSEC-Q series PLCs?Yes, the Q6BAT is specifically designed for seamless integration and compatibility with all Mitsubishi MELSEC-Q series CPUs, providing broad applicability across your MELSEC-Q systems.What is the purpose of a backup battery in a PLC?A backup battery in a PLC, like the Q6BAT, serves to maintain the contents of the PLC's RAM memory during power outages or when the PLC is switched off. This prevents the loss of vital user programs, parameters, and operational data, ensuring smooth system restart and operation.Can I recharge the Mitsubishi Q6BAT?No, the Mitsubishi Q6BAT is a non-rechargeable lithium battery. It is designed for single use and should be replaced once its charge is depleted.How should I dispose of a used Q6BAT battery?Used Q6BAT batteries should be disposed of responsibly according to local battery recycling regulations. Lithium batteries contain materials that require special handling to protect the environment.

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PRODUCT DETAILS

Mitsubishi Q6BAT

Overview

This is a genuine Mitsubishi Electric component from the MELSEC PLCs family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Mitsubishi Electric catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Mitsubishi Electric automation ecosystem
  • Engineered to integrate inside MELSEC PLCs installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes for the MELSEC PLCs family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Catalog Number: Q6BAT
  • Voltage: 3.6V DC
  • Battery Chemistry: Lithium (non-rechargeable)
  • Compatibility: All MELSEC-Q series CPUs
  • Retention Function: Preserves user memory during power loss
  • Expected Life: Approximately 5 years under typical operating conditions
  • Mounting Location: Dedicated battery slot in the CPU module or base unit
  • Operating Temperature: 0°C to 60°C
  • Dimensions: Compact cylindrical design for efficient use of space
  • Disposal: Adhere to local battery recycling guidelines for environmental responsibility.

Applications

The Mitsubishi Q6BAT is a vital component across diverse industrial applications where data integrity and system reliability are paramount:

  • Memory Backup for PLC Systems: Essential for protecting operational programs and configurations in all MELSEC-Q based automation systems.
  • Prevent Data Loss in Unexpected Shutdowns: Ensures continuous operation and rapid recovery following power disturbances.
  • Industrial Control Systems: Ideal for preserving critical process data in manufacturing, energy, and material handling sectors.
  • Automation Panels and PLC Cabinets: An integral part of any robust control panel design, providing an additional layer of system resilience.
  • Preventive Maintenance for System Reliability: A standard replacement part to ensure the long-term, uninterrupted performance of your MELSEC-Q PLCs.

Why Choose the Q6BAT?

  • Essential for System Integrity: The Q6BAT is more than an accessory; it's a fundamental safeguard that retains user programs and critical data during power outages, averting operational disruptions.
  • High Reliability: Constructed with a trusted lithium cell, this battery is engineered for an extended and reliable operational life, reducing the need for frequent replacements.
  • Simple Installation: Designed with maintenance efficiency in mind, its quick-swap mechanism allows for rapid and effortless replacement, minimizing downtime and labor costs.
  • Wide Compatibility: Guaranteed to support all compatible CPUs within the extensive Mitsubishi MELSEC-Q family, offering versatile application across your existing infrastructure.
  • Cost-Effective Protection: Investing in the Q6BAT is a proactive measure that avoids the substantial costs associated with system downtime, data corruption, and the time-consuming process of reprogramming PLCs after power loss.

Availability & Shipping

  • In stock: Q6BAT ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every Q6BAT ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Mitsubishi Electric

Under normal operating conditions, the Mitsubishi Q6BAT has an expected life of approximately 5 years. Regular inspection and replacement as part of your preventive maintenance schedule are recommended to ensure continuous system reliability.

Machine down? We ship parts the same day.

New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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