# Internal RTC Backup Battery Lenovo 00HN997 — replacement battery for system real-time clock

**URL:** https://aio.lv/en/product--lenovo-00hn997--4589266
**Data updated:** 2026-02-12 14:10 (EET)
**Category:** Other Repair Parts
**Manufacturer:** Lenovo
**Manufacturer code:** 00HN997
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 88.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 73.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-00hn997--4589266

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

Lenovo 00HN997 is an internal RTC (real-time clock) backup battery designed to maintain system clock settings and BIOS/CMOS memory when the main power is removed. It is used as a direct replacement part in compatible Lenovo systems to preserve date/time, firmware settings and small configuration data. Ideal for technicians and service centers performing motherboard maintenance or replacements.

## Long description

Lenovo 00HN997 is an internal RTC backup battery designed to sustain the system real-time clock and CMOS settings when the main power source is removed. This replacement battery preserves date and time, BIOS configuration and small non-volatile system parameters, ensuring continuity of firmware settings after power loss or motherboard replacement. It is intended for use in compatible Lenovo systems and for professional maintenance tasks.
Advantages
The internal RTC backup battery provides a reliable low-power source dedicated to maintaining the real-time clock and minimal CMOS memory. Its form factor and connector type match specified Lenovo motherboard requirements for direct replacement, allowing straightforward swap-outs without additional adapters. By keeping BIOS time and settings intact, the battery reduces the need for repeated configuration after power interruptions and supports correct system boot behavior and timestamp accuracy for logs and scheduled tasks.
Подходит для
 Замены батареи реального времени (RTC) на совместимых материнских платах Lenovo
 Технического обслуживания и ремонта в сервисных центрах
 Сохранения настроек BIOS/CMOS при выполнении замены материнской платы
 Обеспечения корректной работы системных часов и временных меток в серверных и рабочих станциях
Key specifications
 Function: RTC backup battery for maintaining system clock and CMOS settings
 Compatibility: designed for use in compatible Lenovo systems requiring this backup battery form factor
 Physical: internal battery module sized for motherboard mounting and connector match
 Power characteristics: low-power reserve designed for long shelf life and extended clock retention
 Application environment: intended for desktop, workstation and server motherboards where internal RTC backup is required
How to use
Power down the system and disconnect all external power sources before replacing the internal RTC backup battery. Open the system chassis following the manufacturer's service instructions to access the motherboard. Remove the old RTC backup battery module carefully, noting the connector orientation, and install the replacement so that the connector is fully seated. Reassemble the chassis, reconnect power and verify BIOS/UEFI date and time settings; adjust if necessary. Follow anti-static precautions during the entire procedure to avoid damage to motherboard components.
Usage recommendations
Use this internal RTC backup battery as a direct replacement only in systems specified by the manufacturer. If the system repeatedly loses time or BIOS settings after replacement, verify connector seating, motherboard compatibility and BIOS firmware state. For professional servicing, keep records of replacement dates and test system clock stability after installation.

## FAQ

### How much does the Lenovo 00HN997 RTC backup battery cost, and is it available for purchase?

The price is 88.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 24.07.2026 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 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

https://aio.lv/img/cache/product/4589266/66009933_large.webp