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header-product Siemens 6ES7971-1AA00-0AA0 Backup Battery for S7-300 CPUs and S5-90U
44.99 €

Siemens 6ES7971-1AA00-0AA0 Backup Battery for S7-300 CPUs and S5-90U

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Siemens 6ES7971-1AA00-0AA0 Backup Battery for S7-300 CPUs and S5-90U

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Short description

The Siemens 6ES7971-1AA00-0AA0 is a reliable backup battery designed for industrial automation systems. It is specifically compatible with SIMATIC S7-300 CPUs and S5-90U controllers. This lithium battery ensures data retention and memory backup during power outages, providing essential support for programmable logic controller operations. Its compact design and stable performance make it an ideal replacement component for maintaining system integrity in industrial environments.
Available for order: 15 pcs.
Warranty: 2 Years
SKU: 3438830
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.01 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

The Siemens backup battery is a high-quality power component engineered to provide reliable memory backup for industrial automation systems. Designed specifically for compatibility with SIMATIC S7-300 CPUs and S5-90U controllers, this lithium battery ensures that critical data and program settings remain intact during power failures or system shutdowns. Its robust construction and stable voltage output make it an essential maintenance component for ensuring the continuous operation and integrity of programmable logic controllers in demanding industrial environments.

Advantages

This backup battery offers exceptional reliability and long-term stability, which are critical for maintaining the operational continuity of automation hardware. By providing a consistent power supply to the volatile memory of the controller, it prevents the loss of configuration data and user programs during unexpected power interruptions. Its compact form factor allows for easy installation within existing control cabinets, while its high energy density ensures a long service life, reducing the frequency of maintenance cycles and minimizing system downtime.

Suitable for

  • SIMATIC S7-300 CPU memory backup
  • S5-90U controller data retention
  • Industrial automation systems requiring power failure protection
  • Maintaining PLC configuration settings

When it may not be suitable

This battery is not intended for use in devices outside of the specified SIMATIC S7-300 and S5-90U product families. It should not be used as a primary power source for operating the controller hardware itself, as it is strictly designed for memory backup purposes.

Key specifications

  • Battery chemistry: Lithium
  • Voltage: 3.6V
  • Capacity: Minimum 0.85Ah
  • Compatibility: SIMATIC S7-300 CPUs and S5-90U

How to use

To install the battery, ensure the programmable logic controller is powered down or in a safe state according to the manufacturer's guidelines. Locate the battery compartment on the CPU module, remove the depleted unit, and insert the new battery, ensuring correct polarity alignment. Once installed, verify that the system recognizes the battery status through the diagnostic software or the status indicators on the CPU front panel.

What to consider before purchase

  • Verify the specific CPU model compatibility
  • Check the current battery status in your PLC diagnostics
  • Ensure proper storage conditions before installation
  • Follow local regulations for lithium battery disposal

Usage recommendations

Always replace the battery before it reaches its end-of-life threshold to prevent potential data loss. It is recommended to keep a spare unit in stock for critical automation systems to ensure immediate replacement when necessary.

Specifications

Weight:
0.011 kg
All features

Battery

Product colour:
Black

Other features

Compatible products:
S7-300 CPUs and S5-90U

Weight & dimensions

Weight:
0.011 kg

Description

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Customer reviews

Customer questions

FAQ

How much does the Siemens 6ES7971-1AA00-0AA0 Backup Battery cost, and is it available for purchase?

The price is 44.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.