Siemens SIMATIC S5 Lithium Buffer Battery AA 3.6V 2.0Ah (6ES59800AE11)

Industrial-grade lithium thionyl chloride (Li-SOCl2) AA battery engineered for Siemens SIMATIC S5 programmable logic controllers, delivering dependable memory backup and data retention. With a nominal voltage of 3.6 V and a capacity of 2.0 Ah, this primary cell safeguards critical data during power interruptions, ensuring uninterrupted PLC operation.

Advantages

High energy density and stable voltage output guarantee consistent performance across a wide temperature range from -55°C to +85°C. The standard button top terminal allows easy installation, while the non-rechargeable design eliminates maintenance concerns. This battery is a direct replacement for the original Siemens part number 6ES59800AE11, ensuring perfect compatibility and reliable operation.

Suitable for

• Siemens SIMATIC S5 CPU 941, 942, 943, 944, 945, 946, 947, and 948 modules
• Industrial control systems requiring long-term memory backup
• Applications demanding extended battery life and rugged performance

Key specifications

• Battery type: Lithium Thionyl Chloride (Li-SOCl2)
• Form factor: AA (ER14505)
• Nominal voltage: 3.6 V
• Nominal capacity: 2.0 Ah (2000 mAh)
• Operating temperature: -55°C to +85°C
• Self-discharge rate: <1% per year
• Shelf life: up to 10 years
• Terminal type: standard button top
• Rechargeable: no (primary battery)
• Diameter: 14.5 mm, length: 50.5 mm

Recommendations

For optimal performance, store in a cool, dry place and replace according to the PLC maintenance schedule to ensure continuous data protection.