# Laptop battery t6 power for Dell Latitude E5440 E5540 5200mAh 58Wh

**URL:** https://aio.lv/en/product--t6-power-nbde0143--3515529
**Data updated:** 2025-12-29 10:58 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** t6 power
**Manufacturer code:** NBDE0143
**EAN:** 8595605516602
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 59.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--t6-power-nbde0143--3515529

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Replacement laptop battery by t6 power compatible with Dell Latitude E5440 and E5540. Nominal capacity 5200mAh (58Wh) designed to restore portable power for extended use away from mains. Intended for users needing a direct replacement for depleted cells — supports typical office, web browsing and mobile work, offering straightforward installation and standard safety features.

## Long description

Replacement Li‑ion laptop battery with a nominal capacity of 5200 mAh (58 Wh), designed for Dell Latitude E5440 and E5540. The battery is black, provides 11.1 V output, and restores portable power for typical mobile productivity tasks. Dimensions are 207.8 x 48.8 x 20.8 mm and the weight is 306 g. Compatible OEM/part numbers include 3K7J7, 451-BBIF, 9TJ2J, VV0NF and several others listed by the manufacturer.
Advantages
The battery uses Li‑ion cells to deliver 58 Wh of energy in a compact form factor suitable for the specified Dell Latitude models. Its nominal voltage of 11.1 V matches the original equipment specification, allowing straightforward replacement. The product is offered in black and follows typical safety and compatibility standards for direct swap installations.
Suitable for
Dell Latitude E5440
Dell Latitude E5540
Replacing a depleted or failing original battery
Mobile office work, web browsing and light productivity away from mains
Key specifications
Type: Li‑ion
Capacity: 5200 mAh (58 Wh)
Voltage: 11.1 V
Color: Black
Dimensions: 207.8 x 48.8 x 20.8 mm
Weight: 306 g
Manufacturer / part numbers: 3K7J7, 451-BBIF, 9TJ2J, VV0NF, 451-BBDX, 451-BBIE, CXF66, NVWGM, WGCW6, 0K8HC, 7W6K0, F49WX, 1N9C0, M7T5F, G826Y
How to use
Power down the laptop, disconnect the mains adapter and remove the existing battery following the Dell service instructions for your model. Insert the replacement battery into the battery bay until it clicks into place, secure any latches and reconnect the mains adapter. Boot the laptop and verify charge and battery recognition in the operating system power settings. Charge the new battery fully before first prolonged use.
Usage recommendations
Store and operate the battery at moderate temperatures, avoid exposure to moisture and mechanical shock. Use the battery with compatible Dell Latitude E5440/E5540 models and genuine or compatible chargers. Do not disassemble or short‑circuit the battery; follow local regulations for recycling used batteries.

## FAQ

### How much does the t6 power laptop battery for Dell Latitude E5440 E5540 cost, and is it available for purchase?

The price is 71.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 01.07.2026 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 t6 power laptop battery for Dell Latitude E5440 E5540 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 t6 power 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 t6 power 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/3515529/51190717_large.webp