Siemens Buffer Battery 6ES7971-0BA00 3.6V/2.3Ah - Battery - 2300 mAh

The Siemens Buffer Battery 6ES7971-0BA00 is a high-quality memory buffer battery designed for data retention in Siemens SIMATIC S7-300 and S7-400 PLC systems. With a nominal voltage of 3.6V and a capacity of 2.3Ah (2300 mAh), this lithium thionyl chloride (Li-SOCl2) primary cell ensures reliable backup power for critical industrial applications.

Advantages

This buffer battery offers extremely low self-discharge (<1% per year at 20°C), a wide operating temperature range from -55°C to +85°C, and a shelf life of up to 10 years. Its non-flammable electrolyte and high energy density make it a safe and efficient choice for long-term memory retention.

Suitable for

• Siemens SIMATIC S7-300 PLCs
• Siemens SIMATIC S7-400 PLCs
• Industrial automation systems requiring memory backup

Key specifications

• Battery Chemistry: Lithium Thionyl Chloride (Li-SOCl2)
• Nominal Voltage: 3.6 V
• Nominal Capacity: 2.3 Ah (2300 mAh)
• Application: Memory Buffer / Data Retention
• Cell Size: Cylindrical (AA equivalent)
• Operating Temperature: -55°C to +85°C
• Self-Discharge Rate: <1% per year at 20°C
• Rechargeable: No (Primary Cell)
• Shelf Life: Up to 10 years
• RoHS Compliant: Yes

Recommendations

For optimal performance, replace the buffer battery every 5-7 years or as indicated by the PLC diagnostics. Ensure proper disposal according to local regulations for lithium metal batteries (UN3090, Class 9).