# Laptop battery Dell NB440740 Original 11.1V 42Wh, replacement for compatible Dell notebooks

**URL:** https://aio.lv/en/product--dell-nb440740--4113361
**Data updated:** 2025-12-29 15:39 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** Dell
**Manufacturer code:** NB440740
**EAN:** 9990000440740
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 94.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 78.09 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dell-nb440740--4113361

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Original Dell laptop battery NB440740 with 11.1V nominal voltage and 42Wh capacity. Designed as a direct replacement for compatible Dell notebook models, it provides reliable power for mobile use, restores runtime between charges and supports standard charging circuitry. Suitable for users needing an OEM battery for work, travel or everyday computing.

## Long description

The NB440740 is an original Dell replacement laptop battery with a nominal voltage of 11.1 V and a capacity of 42 Wh (manufacturer listing also shows 45 Wh in some sources). It is built from high-quality Li-ion cells and includes protection against overheating and overload to maintain long service life. The battery is compatible with a range of Dell Inspiron and Dell Latitude notebooks and is intended as a direct OEM replacement to restore portable runtime and support standard charging circuitry.
Advantages
The battery uses Li-ion cells and protection circuitry designed to prevent overheating and overload, which helps extend battery lifecycle and maintain stable performance. Its nominal voltage and capacity match OEM specifications for compatible Dell notebook models, providing a straightforward replacement option that integrates with the original charging system. The product is supplied in black and carries a limited 6-month warranty from the seller/producer.
Suitable for
Dell Inspiron 14 models (including series 5447, 5447/5547/5545 family identifiers listed)
Dell Latitude 12 7000 series and specific E7240, E7250 series models
Users seeking an OEM replacement battery for work, travel or everyday mobile computing
Key specifications
Manufacturer brand: Dell
Model / MPN: NB440740
Capacity: 42 Wh (manufacturer notes also reference 45 Wh in some entries)
Cell type: Li-ion
Nominal voltage: 11.1 V (source text also lists 7.4 V for another variant — verify compatibility with your notebook)
Color: Black
Warranty: 6 months
How to use
Turn off the notebook and disconnect any power adapter before replacing the battery. Remove the service panel or battery latch according to your notebook’s user manual, extract the old battery, and install the NB440740 in the same orientation. Reattach the panel, connect the power adapter, and power on the notebook. Allow the battery to charge fully before first use to ensure proper calibration. If your model uses a different voltage variant (the source lists both 11.1 V and 7.4 V), confirm the correct part number and voltage compatibility for your specific Dell notebook before installation.
Usage recommendations
Store and use the battery at moderate temperatures, avoid prolonged exposure to heat, and follow the notebook manufacturer’s guidelines for charging cycles. If you are uncertain about model compatibility, check the service tag or part number of your Dell notebook or consult an authorized service provider before purchase.

## FAQ

### How much does the Laptop battery Dell NB440740 11.1V 42Wh cost, and is it available for purchase?

The price is 94.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 06.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Laptop battery Dell NB440740 11.1V 42Wh be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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

https://aio.lv/img/cache/product/4113361/10509813_large.webp