# Cache Battery IBM SS DS3000 39R6520-RFB 3.6V 1000mAh

**URL:** https://aio.lv/en/product--ibm-39r6520-rfb--535828
**Data updated:** 2026-01-12 19:28 (EET)
**Category:** Other Repair Parts
**Manufacturer:** IBM
**Manufacturer code:** 39R6520-RFB
**EAN:** 5711045091537
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 214.99 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 177.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ibm-39r6520-rfb--535828

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.79 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Replacement cache backup battery for IBM System Storage DS3000 series, model 39R6520-RFB. Rated 3.6 V and 1000 mAh, it provides temporary power to protect cached data during power interruptions. Designed for use with compatible DS3000 controllers to ensure data integrity, safe shutdown and reliable cache preservation in enterprise storage environments.

## Long description

Replacement cache backup battery IBM SS DS3000 39R6520-RFB 3.6V 1000mAh is a dedicated backup power unit designed for IBM System Storage DS3000 series controllers. Rated at 3.6 volts and 1000 mAh, this cache battery provides short-term power to preserve cached data and allow controlled shutdown of cache functions during mains power loss. The unit is intended as a direct replacement for the original 39R6520-RFB module and is compatible with supported DS3000 storage controller assemblies to maintain data integrity and reduce the risk of data loss in enterprise storage environments.
Advantages
This IBM-branded cache battery offers a compact form factor and the specified 3.6 V / 1000 mAh rating that matches OEM requirements for DS3000 systems. By supplying temporary power to the controller cache, it helps ensure cached write operations are committed or safely held until normal power is restored. The battery’s compatibility with the 39R6520-RFB reference and its OEM-grade electrical characteristics make it suitable for use as a reliable service replacement in maintenance and repair scenarios.
Suitable for
IBM System Storage DS3000 series controllers requiring a 39R6520-RFB cache backup battery
Data centers and server rooms performing scheduled maintenance or battery replacements
IT technicians servicing enterprise storage arrays to ensure cache preservation
Key specifications
Brand: IBM
Model / MPN: 39R6520-RFB
EAN: 5711045091537
Voltage: 3.6 V
Capacity: 1000 mAh
Function: Cache backup / temporary power for controller cache
How to use
Install the cache battery according to IBM DS3000 service instructions and the controller’s maintenance manual. Before replacing the module, power down the controller or follow hot-swap procedures specified by IBM for your model. Ensure proper seating of the battery pack and secure any connectors or retention clips. After installation, verify controller diagnostics and battery status via the management interface to confirm the replacement is recognized and functioning.
Usage recommendations
Replace the battery at intervals recommended by IBM or when controller diagnostics indicate reduced capacity. Store spare batteries in a cool, dry place and avoid exposure to extreme temperatures. Use only compatible replacement modules (MPN 39R6520-RFB) to maintain warranty and ensure correct electrical characteristics for DS3000 controllers.

## FAQ

### How much does the Cache Battery IBM 39R6520-RFB 3.6V 1000mAh cost, and is it available for purchase?

The price is 214.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 07.08.2026 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. 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 IBM 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 IBM 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/535828/59839685_large.webp