# Battery pack IBM Controller Cache Battery 59Y5491-RFB 3.6V 1000mAh

**URL:** https://aio.lv/en/product--ibm-59y5491-rfb--495843
**Data updated:** 2026-01-12 19:28 (EET)
**Category:** Batteries
**Manufacturer:** IBM
**Manufacturer code:** 59Y5491-RFB
**EAN:** 5711045078637
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 366.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 302.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ibm-59y5491-rfb--495843

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Replacement controller cache battery for IBM storage controllers, model 59Y5491-RFB. Rechargeable 3.6V, 1000mAh capacity designed to preserve cache data during power loss and ensure safe shutdown of storage systems. Intended for use in compatible IBM controller modules to maintain data integrity and prevent cache corruption. Easy to install in supported units.

## Long description

Battery pack IBM Controller Cache Battery 59Y5491-RFB 3.6V 1000mAh is a rechargeable replacement battery designed for compatible IBM storage controller modules. It provides 3.6V nominal voltage and 1000mAh capacity to support cache retention and controlled shutdown procedures when main power is interrupted. The battery preserves volatile cache contents to reduce the risk of data loss or cache corruption and is intended for use in systems specified by IBM for this MPN.
Advantages
This IBM controller cache battery is built to match the electrical characteristics required by supported IBM storage controllers, offering a reliable 3.6V output and 1000mAh capacity. The rechargeable chemistry enables the battery to be recharged by the controller’s internal circuitry, supporting repeated power-loss events. The compact form factor and OEM-compatible connector allow straightforward replacement in modules designed for model 59Y5491-RFB, helping to maintain data integrity and minimize downtime associated with cache loss.
Suitable for
 Replacing an aging or failed cache battery in compatible IBM storage controller modules
 Preserving controller cache contents during short-term power interruptions
 Maintaining safe shutdown sequences to prevent cache corruption
 Use in data centers and enterprise storage environments where IBM-supported modules are deployed
Key specifications
 Brand: IBM
 Manufacturer part number (MPN): 59Y5491-RFB
 EAN: 5711045078637
 Nominal voltage: 3.6V
 Capacity: 1000mAh
 Type: Rechargeable controller cache battery (OEM replacement)
 Category: Batteries
How to use
Before replacing the battery, power down the storage controller and follow the manufacturer's service procedures to avoid data loss. Remove the old battery from the controller module according to IBM's service manual and install the 59Y5491-RFB pack in the same orientation and connector position. After installation, power up the controller and verify battery status through the controller's management interface. Dispose of the removed battery following local regulations for rechargeable batteries.
Usage recommendations
Use this battery only in IBM controller modules specified to accept MPN 59Y5491-RFB. Periodically check controller logs or management software for battery health indicators and replace the pack when capacity or status warnings appear. Store replacement batteries in a cool, dry place and avoid exposure to temperatures outside the recommended storage range specified by IBM.

## FAQ

### How much does the IBM Controller Cache Battery 59Y5491-RFB 3.6V 1000mAh cost, and is it available for purchase?

The price is 366.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 03.07.2026 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. 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

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