# Battery Lenovo 01HY790 — Replacement internal RTC/CMOS battery for compatible Lenovo laptops

**URL:** https://aio.lv/en/product--lenovo-01hy790--5972802
**Data updated:** 2026-03-07 15:15 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Lenovo
**Manufacturer code:** 01HY790
**EAN:** 5704174262039
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-01hy790--5972802

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Replacement internal RTC/CMOS battery Lenovo 01HY790 designed for use in compatible Lenovo laptops and portable devices. Provides backup power to the real-time clock and system settings when the main battery is removed or depleted. Suitable for maintaining time, BIOS/UEFI settings and basic system configuration during storage or main battery replacement. Easy to install in supported models; check compatibility before purchase.

## Long description

Replacement internal RTC/CMOS battery Lenovo 01HY790 is designed for use in compatible Lenovo laptops and portable devices to provide backup power for the real-time clock and basic system configuration. The battery maintains time, BIOS/UEFI settings and other critical low-power memory when the main battery is removed or fully discharged. It is intended as a direct internal replacement in supported models; verify compatibility with your device or service manual before purchase.
Advantages
This internal RTC/CMOS battery ensures continuous retention of system time and BIOS/UEFI settings, reducing the need to reconfigure firmware options after main battery replacement or long-term storage. Its compact design fits inside compatible laptop housings and provides a reliable low-current source specifically for real-time clock circuitry and CMOS memory. Installation requires minimal tools and preserves user settings when the primary power source is unavailable.
Suitable for
 Maintaining system clock and BIOS/UEFI settings in Lenovo laptops during main battery replacement
 Preserving configuration and low-power memory during device storage or transport
 Repair or refurbishment of compatible portable devices that use an internal RTC/CMOS module
Key specifications
 Function: backup power for real-time clock (RTC) and CMOS/BIOS settings
 Form factor: internal modular battery designed for installation inside laptop chassis
 Voltage and capacity: low-voltage, low-current cell appropriate for RTC applications
 Connection: internal connector or contact designed for compatible motherboard sockets
 Compatibility: intended for specific Lenovo laptop models that accept this internal RTC/CMOS battery
How to use
Power down the laptop and disconnect all external power sources before beginning. Access the internal compartment according to the manufacturer service manual or user guide and locate the RTC/CMOS battery connector on the motherboard. Carefully disconnect the old battery and connect the replacement, ensuring correct polarity and a secure connection. Reassemble the device and reconnect main power; verify system time and BIOS/UEFI settings and update if necessary.
Usage recommendations
Check device compatibility and follow the laptop manufacturer’s disassembly instructions to avoid damage to internal components. Handle the battery with care, avoid shorting contacts, and dispose of the removed battery in accordance with local electronic waste regulations. If unsure about internal replacement, consult an authorized service provider.

## FAQ

### How much does the Battery Lenovo 01HY790 — RTC/CMOS replacement 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 — 90 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 09.07.2026 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

https://aio.lv/img/cache/product/5972802/51584045_large.webp