# Battery for Lenovo CMOS C 82K2 E3, replacement RTC/BIOS coin cell

**URL:** https://aio.lv/en/product--lenovo-5b10s34092--10921446
**Data updated:** 2026-03-07 18:10 (EET)
**Category:** Computer Component Accessories
**Manufacturer:** Lenovo
**Manufacturer code:** 5B10S34092
**EAN:** 5715063420133
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-5b10s34092--10921446

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.89 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Replacement CMOS/RTC coin cell battery for Lenovo systems, model C 82K2 E3. Designed to preserve BIOS settings and system clock when main power is off. Suitable as a direct replacement for compatible Lenovo motherboards and older desktops or laptops that use an externally mounted coin cell. Provides dependable backup power for system configuration and timekeeping.

## Long description

Replacement CMOS/RTC coin cell battery for Lenovo systems, model C 82K2 E3. This externally mounted coin cell is intended to maintain BIOS settings and the system clock when the main power is disconnected. The battery provides backup power to preserve configuration data on compatible Lenovo motherboards and older desktop or laptop systems that use an external coin cell holder. It is a compact solution for restoring timekeeping and BIOS parameter retention after power loss or during motherboard servicing.
Advantages
The coin cell offers reliable long-term backup power for the real-time clock and BIOS memory, helping to avoid loss of system settings and time drift. Its form factor matches compatible Lenovo external holders for straightforward replacement without modifying the motherboard. The battery is lightweight and easy to handle, enabling fast swap-outs during repairs or maintenance. Because it is designed as a direct replacement, it reduces the risk of connectivity or fit issues that can occur with non-compatible cells.
Suitable for
 Preserving BIOS/RTC settings on Lenovo motherboards that use an external coin cell holder
 Replacing an aging or depleted CMOS battery in older desktops and laptops
 System maintenance, repairs, and motherboard servicing where external coin cells are used
Key specifications
 Type: External CMOS/RTC coin cell for motherboard use
 Function: Provides backup power for real-time clock and BIOS settings
 Form factor: Externally mounted coin cell compatible with Lenovo external holders
 Typical use environment: Desktop and laptop motherboards requiring an external RTC battery
How to use
Power down the computer and disconnect it from mains power before attempting replacement. Locate the external coin cell holder on the motherboard or chassis and carefully remove the depleted cell according to the system manufacturer's access method. Insert the replacement coin cell with the correct polarity orientation, ensuring a secure fit in the holder. Reconnect power and check BIOS/UEFI settings and system clock; update date and time if necessary. Follow static-discharge precautions and the device manufacturer's service instructions while handling internal components.
Usage recommendations
Store spare batteries in a cool, dry place and replace the coin cell promptly when BIOS warnings or clock drift are observed. If the system uses CMOS-protected passwords or customized BIOS settings, record settings before replacement. Consult the Lenovo hardware manual for model-specific removal and insertion instructions to avoid damage to the holder or motherboard.

## FAQ

### How much does the Lenovo CMOS Battery C 82K2 E3 cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 48 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 10.07.2026 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: Cash payment, 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 Lenovo 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 Lenovo 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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