# Laptop CMOS Coin Cell Battery Dell KU144 lithium for system clock and BIOS settings

**URL:** https://aio.lv/en/product--dell-ku144--3956836
**Data updated:** 2026-02-12 09:58 (EET)
**Category:** Other Repair Parts
**Manufacturer:** Dell
**Manufacturer code:** KU144
**EAN:** 5711045159084
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.49 €
**Prices and availability valid until:** 2026-08-25 23:59
**Price without VAT (21%):** 43.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dell-ku144--3956836

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

Dell KU144 is a lithium coin cell battery designed for maintaining laptop CMOS memory, system clock and BIOS settings when the main power is off. Compact and replaceable, it preserves important configuration data and helps ensure correct timekeeping. Suitable for compatible Dell systems requiring a KU144 coin cell replacement.

## Long description

The Dell KU144 lithium coin cell battery is designed to maintain CMOS memory, the system clock and BIOS settings in compatible laptop systems when the main power source is removed. This compact, replaceable battery provides steady voltage to onboard memory and real-time clock circuits, helping preserve configuration data and accurate timekeeping during battery swaps or extended power-off periods.
Advantages
The KU144 offers a long shelf life and stable discharge characteristics suitable for backup applications. Its compact coin cell form factor allows straightforward replacement on laptops with accessible CMOS battery compartments. The battery requires no additional connectors or wiring in systems designed for this type of cell, which simplifies maintenance and reduces downtime during swaps.
Suitable for
Restoring or preserving BIOS and CMOS settings in compatible Dell laptops
Maintaining the system clock (real-time clock) when the main battery is removed
Replacing depleted onboard coin cell batteries during service or repair
Key specifications
Cell type: lithium coin cell
Primary use: CMOS/BIOS backup and real-time clock power
Form factor: compact coin cell suitable for laptop motherboard sockets designed for this type
Typical characteristics: stable voltage output and long shelf life for backup applications
How to use
Power down the laptop and remove the main battery and AC adapter before accessing the CMOS battery compartment. Locate the existing coin cell on the motherboard and note its orientation. Carefully remove the old cell using non-conductive tools if necessary and insert the new KU144 coin cell in the same orientation, ensuring proper contact with the battery holder. Reassemble the laptop, reconnect power and verify BIOS settings and system clock are retained or reconfigure them as required.
Usage recommendations
Use only in systems specified for this coin cell type and follow the laptop manufacturer's service instructions. Dispose of the depleted battery according to local battery recycling and hazardous waste regulations. If BIOS settings reset after replacement, enter the BIOS to confirm and save correct configuration and system time.

## FAQ

### How much does the Dell KU144 lithium coin cell battery cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 24.08.2026 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 Dell 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 Dell 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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