6ES7971-0BA00
6ES7971-0BA00
6ES7971-0BA00
6ES7971-0BA00
6ES7971-0BA00
6ES7971-0BA00
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    Discontinued / Obsolete by OEM
    Apter Power supplies top-grade Siemens 6ES7971-0BA00 replacement hardware, offering industrial facilities a trusted source for critical automation components to maintain continuous and efficient plant operations.

6ES7971-0BA00

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This backup battery, 6ES7971-0BA00, is designed to address the challenges of data retention and system continuity in industrial automation environments.
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Technical specifications for 6ES7971-0BA00

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7971-0BA00
  • Product Family:
    Siemens Simatic S7-400
  • Product Type:
    Back Up Battery
  • Stock:
    1
  • Product Series:
    SIMATIC S7-400
  • Product Type:
    Backup battery
  • Voltage:
    3.6 V
  • Capacity:
    2.3 AH
  • Compatible Power Supply Units:
    PS 405 4 A / 10 A / 20 A
  • Compatible Power Supply Units:
    PS 407 4 A / 10 A / 20 A
  • Weight:
    0.02 kg
  • Estimated shipping dimensions:
    4.7x1.3x1.3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Communication & Connectivity Environmental Ratings

Features:

  • Serves as the critical bridge between the 3.6 V backup power source and the S7-400 CPU memory architecture
  • Integrates the functionality of long-duration DC power storage with automated memory preservation capabilities
  • Functions alongside the PS 405 and PS 407 power supply modules across multiple current ratings
The SIEMENS 6ES7971-0BA00 SIMATIC S7-400 Backup battery functions as the dedicated memory retention component within an S7-400 automation rack, delivering sustained 3.6 VDC power to safeguard essential CPU data during primary power failures. It persistently maintains backup energy supply (3.6 V/2.3 AH) to protect real-time clock functions, diagnostic buffers, counter values, and user program storage when the main PS 405 or PS 407 power supply encounters interruption. Uninterrupted data integrity comes standard with the 6ES7971-0BA00, guaranteeing that all volatile operational parameters remain preserved throughout unexpected electrical outages. The 6ES7971-0BA00 has been purpose-built to ensure production continuity in demanding industrial environments where information preservation directly impacts operational efficiency.

The 6ES7971-0BA00 delivers vital backup power services essential to the complete S7-400 control ecosystem, representing a fundamental element of the data security chain, significantly influencing the correct, routine performance of memory-critical automation tasks. A single 6ES7971-0BA00 backup battery is mandated for each compatible power supply unit to secure ongoing data protection. The 6ES7971-0BA00 is engineered for seamless integration into the PS 405 4 A/10 A/20 A and PS 407 4 A/10 A/20 A power supply housings, fitting exclusively into the designated battery slots within these assemblies.

For enhanced system dependability, the 6ES7971-0BA00 SIMATIC S7-400 Backup battery sustains uniform output characteristics across its operational lifespan. Beyond conventional memory safeguarding, this battery arrangement enables immediate power handover to internal memory circuits without operator action. The 6ES7971-0BA00 backup mechanism implements protection through the integrated circuitry defined within the power supply specifications. Through this approach, the battery subsystem constantly evaluates the condition of the reserve power source. Should the system identify that the primary power supply has ceased delivering stable voltage to CPU memory elements, the 6ES7971-0BA00 will autonomously sustain the electrical load to crucial memory sectors and retain all configuration settings without necessitating manual recovery procedures.

The 6ES7971-0BA00 SIEMENS Backup battery may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
SIEMENS 6ES7971-0BA00 SIMATIC S7-400 Backup battery Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
SIEMENS 6ES7971-0BA00 SIMATIC S7-400 Backup battery Specs

General

  • Manufacturer SIEMENS
  • Model 6ES7971-0BA00
  • Condition New Original ready stock
  • Product Family 6ES7971-0BA02,6ES7490-0AA00-0AA0,6ES7490-0AB00-0AA0
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • System Compatibility: Exclusively designed for SIMATIC S7-400 Power Supply (PS) modules, including PS 405 (DC) and PS 407 (AC) series.
  • Primary Function: Provides backup power to the CPU’s volatile RAM memory and internal Real-Time Clock (RTC).
  • Data Retention: Ensures that user programs, configuration data, and system bit memory are preserved during main power failure or system shutdown.
  • Industrial Use: Widely used in manufacturing, automotive assembly lines, and heavy process industries where S7-400 PLCs are standard.
  • Connection Interface: Standard AA terminal contact; fits into the designated battery compartment of the Power Supply module.
  • Hot-Swappable: Can be replaced while the PLC is powered on (to avoid data loss during the swap).
  • Digital Integration: Battery status can be read by the PLC CPU and transmitted via PROFIBUS or PROFINET to HMI/SCADA systems for maintenance alerts.
  • System Diagnostics: Hardware Monitoring: The Power Supply module monitors battery voltage levels. Fault Signaling: Low battery status triggers the "BATTF" (Battery Fault) LED on the PS module.
  • Operating Temperature:0°C to +60°C(as part of the S7-400 system environment).
  • Cell Temperature Range: The core lithium cell is rated for-55°C to +85°C.
  • Self-Discharge Rate: Extremely low (less than 1% per year at+25°C), allowing for a shelf life of up to 10 years.
  • Compliance: RoHS: Compliant with environmental protection standards. UN 3090: Classified as Class 9 Dangerous Goods for shipping (Lithium Metal Batteries).
Description
The SIEMENS 6ES7971-0BA00 is a SIMATIC S7-400 backup battery designed to provide reliable power support for specific power supply units within the S7-400 automation system. This 3.6 V/2.3 AH battery is specifically engineered for use with the PS 405 4 A/10 A/20 A and PS 407 4 A/10 A/20 A power supplies, ensuring continuous backup power to maintain critical system data during unexpected power interruptions.

This backup battery 6ES7971-0BA00 is specifically designed to address the challenge of data retention and system continuity in industrial automation environments. It solves the critical problem of memory data loss during power failures, which can lead to costly production downtime, corrupted process parameters, and compromised operational integrity. By maintaining the power supply to the CPU's internal memory and clock functions when main power is disrupted, the 6ES7971-0BA00 ensures that all programmed logic, process variables, and real-time clock information remain intact and immediately available upon power restoration.

The 6ES7971-0BA00 backup battery is particularly essential in manufacturing facilities, process control plants, and automated production lines where uninterrupted operation is paramount. In applications such as automotive assembly systems, chemical processing plants, and pharmaceutical manufacturing operations, this battery safeguards against the loss of critical runtime data, diagnostic buffers, and counters that are vital for maintaining seamless production workflows and regulatory compliance.
Alternative Names
6ES79710BA00 6ES797I-0BA00 6ES7971-OBAOO 6ES7971-08A00 6ES7971-0BA02 6ES7490-0AA00-0AA0 6ES7490-0AB00-0AA0
Technical notes
The Siemens 6ES7971-0BA00 3.6V/2.3Ah battery is designed for PS 405 4A/10A/20A and PS 407 4A/10A/20A power supplies, providing continuous backup power during unexpected power outages to maintain critical system data.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the SIEMENS 6ES7971-0BA00 used for?
The 6ES7971-0BA00 is a backup battery designed for the SIMATIC S7-400 system by Siemens. It provides reliable power support to specific power supply units, ensuring that critical system data is retained during power interruptions.
Why is the 6ES7971-0BA00 important in automation systems?
The 6ES7971-0BA00 plays a crucial role in preventing memory data loss during power failures. Without it, critical data such as control logic, process parameters, and system states could be lost, leading to production downtime and operational disruptions.
How does the 6ES7971-0BA00 ensure system continuity?
The battery maintains power to the CPU’s internal memory and real-time clock when the main power supply is interrupted. This ensures that all programmed logic, variables, and timing information remain intact and immediately accessible once power is restored.

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