Siemens 6EW1001-0AA 3.6V Lithium D-cell Battery

The Siemens 6EW1001-0AA 3.6V Lithium D-cell battery provides backup power for SIMATIC S5 memory modules. This battery preserves program data and system parameters during power outages. It fits directly into the S5 CPU or memory submodule slot. You can use this battery as a direct replacement for depleted units.

Detailed Technical Specifications

This Siemens 6EW1001-0AA 3.6V Lithium D-cell battery measures 61.5 mm in length. Its diameter reaches 33 mm across the cylindrical body. The total weight comes to approximately 85 grams including terminals. This unit uses a high-energy lithium-thionyl chloride chemistry.

Key hardware parameters include:

Complete Model: Siemens 6EW1001-0AA
Voltage rating: 3.6 V nominal output
Capacity: 13,000 mAh (milliamp-hours)
Chemistry: Lithium-thionyl chloride (LiSOCl₂)
Terminal type: Two insulated flying leads
Connector: 2-pin polarized housing
Shelf life: 10 years at room temperature
Operating life: 3 to 5 years in typical S5 applications
Self-discharge rate: Less than 1% per year

The Siemens 6EW1001-0AA 3.6V Lithium D-cell battery stores significant chemical energy. Therefore, technicians must avoid short circuits during replacement. The battery operates reliably from -55°C to +85°C. Moreover, it maintains stable voltage throughout most of its discharge cycle.

Technical Parameter	Specification
Full Model Number	Siemens 6EW1001-0AA
Voltage Rating	3.6 V nominal
Capacity	13,000 mAh
Chemistry	Lithium-thionyl chloride (LiSOCl₂)
Dimensions (L x D)	61.5 mm x 33 mm
Weight	85 g
Terminal Type	2 insulated flying leads
Connector	2-pin polarized housing
Shelf Life	10 years
Operating Temperature	-55°C to +85°C
Self-Discharge	<1% per year

Application and Installation

The Siemens 6EW1001-0AA 3.6V Lithium D-cell battery plugs into S5 CPU 115U, 135U, and 155U models. This battery backs up the RAM on the main processor board. It also powers the real-time clock during main power loss. Consequently, your program remains intact for years without external power.

Safety and Replacement Guidelines

This lithium battery contains no hazardous heavy metals like cadmium or mercury. The Siemens 6EW1001-0AA includes reverse polarity protection on its connector. Always dispose of used batteries according to local electronic waste regulations. Replace this battery every three to five years for optimal system reliability.

Power up the S5 CPU before disconnecting the old battery. This practice prevents any program data loss during the replacement procedure. Verify the connector orientation matches the PCB header markings. Furthermore, store spare batteries in a cool, dry location away from conductive materials.