# RTC battery IBM for Lenovo systems model 04W1642-RFB, replacement real-time clock battery

**URL:** https://aio.lv/en/product--ibm-04w1642-rfb--536360
**Data updated:** 2026-01-13 15:24 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** IBM
**Manufacturer code:** 04W1642-RFB
**EAN:** 5712505627341
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ibm-04w1642-rfb--536360

## 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

RTC battery IBM model 04W1642-RFB designed for Lenovo systems. This replacement real-time clock battery preserves BIOS settings and system time when the main power is removed. Compatible with supported Lenovo motherboard designs that accept this MPN. Ideal for system maintenance, repairs, and prolonging device reliability by preventing time and configuration loss.

## Long description

RTC battery IBM for Lenovo systems model 04W1642-RFB is a replacement real-time clock battery intended to maintain system time and BIOS settings when the main power source is removed. Designed for compatibility with Lenovo motherboard designs that accept the specified form factor and connector type, this RTC battery supports system maintenance and hardware repairs by preventing loss of configuration and time data during power interruptions.
Advantages
This RTC battery provides stable backup power for the real-time clock and CMOS memory, helping to preserve BIOS settings and timekeeping without requiring an external power source. The replacement unit is compact, intended for easy installation in supported Lenovo systems, and reduces the need for reconfiguring system settings after battery depletion. Using a dedicated RTC battery extends the usable life of older systems and simplifies maintenance workflows.
Suitable for
Replacing a depleted or failing RTC/CMOS battery in compatible Lenovo motherboards
System maintenance and repair tasks where BIOS settings must be preserved
IT service environments that perform motherboard or battery swaps to restore device functionality
Upgrading inventory for refurbishment of laptops and desktops that use this battery type
Key specifications
Function: real-time clock (RTC) backup and CMOS memory power
Form factor: compact board-mounted replacement battery designed for specific Lenovo motherboard layouts
Operating role: maintains system time and BIOS configuration when main power is removed
Compatibility: intended for Lenovo systems that accept this model and connector type
Mounting: board-mounted replacement (designed for insertion into an onboard socket or connector)
How to use
Power down the system and disconnect it from external power before replacing the RTC battery. Locate the existing RTC/CMOS battery on the motherboard according to the system service manual, carefully remove the old battery from its socket or connector, and install the replacement unit ensuring correct orientation and secure seating. Reconnect power and enter the BIOS/UEFI setup after initial power-up to verify system time and BIOS settings; adjust if necessary. Follow anti-static procedures during handling to avoid damage to motherboard components.
Usage recommendations
Use this replacement RTC battery only in systems specified as compatible with this form factor. Observe manufacturer guidance for safe replacement: disconnect power, ground yourself to prevent electrostatic discharge, and consult the service manual for the correct battery location and orientation. If BIOS settings are lost after replacement, reconfigure date, time, boot order and other required parameters in BIOS/UEFI.

## FAQ

### How much does the RTC battery IBM 04W1642-RFB for Lenovo cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 68 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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