# Laptop battery Dell 42Wh 3-cell Lithium Ion 0KNM09

**URL:** https://aio.lv/en/product--dell-0knm09--10810913
**Data updated:** 2026-01-12 19:31 (EET)
**Category:** Computer Component Accessories
**Manufacturer:** Dell
**Manufacturer code:** 0KNM09
**EAN:** 5715063301944
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dell-0knm09--10810913

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Replacement laptop battery Dell 42Wh 3‑cell Lithium Ion (model 0KNM09) designed to restore portable power for compatible Dell notebooks. Offers 42 watt‑hours capacity in a compact 3‑cell Li‑Ion pack for typical mobile use, battery replacement and travel. Use to extend runtime, replace a degraded battery and ensure reliable power during work or commuting.

## Long description

Replacement laptop battery Dell 42Wh 3-cell Lithium Ion (model 0KNM09) is designed to restore portable power for compatible Dell notebooks. This 42 watt‑hour, 3‑cell Li‑Ion pack provides a compact power source intended for typical mobile use, battery replacement and travel. The battery is intended to extend runtime, replace a degraded original unit and deliver reliable power for work or commuting when used in supported Dell laptop models.
Advantages
The Dell 42Wh 3-cell Lithium Ion battery 0KNM09 offers a standardized capacity rating of 42Wh in a compact 3‑cell configuration that balances runtime and size. As a direct replacement battery it is compatible with specified Dell notebooks and intended to restore original operating time without requiring system modifications. The Li‑Ion chemistry provides typical advantages of modern laptop cells such as relatively low self‑discharge and consistent discharge behavior under normal use conditions.
Suitable for
 Replacing a degraded or non‑functional battery in compatible Dell laptops
 Extending mobile runtime for office, study or commuting use
 Maintaining productivity during travel when mains power is unavailable
 Keeping a spare battery for fieldwork or extended sessions away from power outlets
Key specifications
 Brand: Dell
 Model / MPN: 0KNM09
 Capacity: 42Wh
 Cell count: 3‑cell
 Chemistry: Lithium Ion (Li‑Ion)
 EAN: 5715063301944
 Category: Computer components accessories
How to use
Power down the laptop and disconnect AC adapter before replacing the battery. Follow the laptop manufacturer's disassembly instructions to remove the existing battery and install the Dell 0KNM09 battery in the correct orientation, securing any latches or screws as required. After installation, connect the AC adapter and allow the system to recognize the new battery; charge fully before first extended use to ensure the battery management system calibrates charge reporting.
Usage recommendations
Store the battery in a cool, dry place when not in use and avoid prolonged exposure to temperatures outside the manufacturer’s recommended range. Use the battery with compatible Dell models only and follow safety guidelines: do not puncture, disassemble, short‑circuit or expose to fire. Dispose of the battery according to local electronic waste regulations.

## FAQ

### How much does the Dell laptop battery 0KNM09 42Wh 3-cell cost, and is it available for purchase?

The price is 34.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 15.07.2026 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 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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