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Product Overview
This backup battery provides reliable power retention for the SIMATIC C7 control systems. It uses lithium-thionyl chloride chemistry with a nominal voltage of 3.6 V. The battery delivers a capacity of 2.6 Ah for extended data preservation. It measures 14.5 mm in diameter and 50.5 mm in total length. The cylindrical cell weighs approximately 20 grams for straightforward replacement handling. You can install this battery without special tools or training.
The battery maintains the system clock and retentive memory during power interruptions. It also preserves user programs and configuration data in the CPU’s internal RAM. The battery’s low self-discharge rate ensures a shelf life exceeding 10 years. Its non-rechargeable design eliminates the need for charging circuits. The device operates reliably across a wide temperature range for industrial applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Backup Battery |
| Model | 6ES7623-1AE00-6AA0 |
| Chemistry | Lithium-thionyl chloride (LiSOCl₂) |
| Nominal Voltage | 3.6 V |
| Capacity | 2.6 Ah |
| Dimensions (Diameter x Length) | 14.5 mm x 50.5 mm |
| Weight | Approx. 20 g |
| Shelf Life | > 10 years |
| Operating Temperature | -20 °C to 60 °C |
| Storage Temperature | -40 °C to 85 °C |
| Compatibility | SIMATIC C7 series |
| Rechargeable | No |
| Protection | Reverse polarity protection |
Key Features and Benefits
This battery offers a service life of approximately 3 years in typical C7 applications. Its high energy density provides reliable backup in a compact cylindrical format. The battery’s low internal resistance ensures stable voltage output over the entire service life. You can replace the battery without losing the retained data. The module includes a connector that matches the C7’s internal battery socket.
Installation and Replacement
You remove the C7’s front cover to access the battery compartment. Disconnect the old battery by gently pulling the connector from the socket. Connect the new battery’s connector firmly into the same socket position. The CPU will automatically detect the new battery upon restart. The system will then resume normal operation without any configuration changes. You should replace the battery when the low-voltage warning appears in diagnostics.
Typical Applications
This battery serves all SIMATIC C7 control systems requiring memory retention. It ensures uninterrupted operation in power-sensitive industrial environments. The battery also provides reliable backup for critical process data and event logs.