# Battery T6 Power for Dell Latitude 3440 3540 — 5200mAh / 58Wh, 6‑cell

**URL:** https://aio.lv/en/product--t6-power-nbde0159--3552732
**Data updated:** 2026-04-08 15:08 (EEST)
**Category:** Portable Device Batteries
**Manufacturer:** t6 power
**Manufacturer code:** NBDE0159
**EAN:** 8595605518408
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 54.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--t6-power-nbde0159--3552732

## 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 T6 Power compatible with Dell Latitude 3440 and 3540 series. Rated capacity 5200mAh (58Wh) with a 6‑cell configuration, designed to restore portable power for daily mobile use. Suitable for users needing original-form factor power for productivity, travel, and extended unplugged operation.

## Long description

Replacement laptop battery T6 Power compatible with a range of Dell notebooks including Latitude 3440 and 3540, several Inspiron 14/15/17 models and Vostro series. The battery uses Li-ion chemistry in a 6‑cell configuration and provides a rated capacity of 5200 mAh (58 Wh) at 11.1 V. Its compact dimensions and standard form factor make it a direct swap for the listed compatible models.
Advantages
The T6 Power 5200 mAh battery delivers a balance of capacity and weight suitable for everyday mobile use. With Li‑ion cells and a 6‑cell layout it offers stable voltage and predictable runtime for compatible Dell laptops. The battery is supplied in a common replacement size that preserves original fit and mounting points.
Suitable for
Replacing a worn or failing battery in Dell Latitude 3440 and 3540 laptops
Restoring portable power for Dell Inspiron 14/15/17 series models listed as compatible
Users who need a direct-fit, 6‑cell Li‑ion replacement with ~5200 mAh capacity
When it may not be suitable
This battery may not be suitable if your laptop model is not among the listed compatible devices or if your machine requires an original OEM part with manufacturer-specific firmware. It is also unsuitable when a higher-capacity or extended battery option is required beyond 5200 mAh.
Key specifications
Battery type: Lithium‑ion (Li‑ion)
Configuration: 6 cells
Rated capacity: 5200 mAh (58 Wh)
Nominal voltage: 11.1 V
Color: black
Dimensions: 273 × 49 × 25 mm
Weight: 317 g
How to use
Power down the laptop, disconnect any external power, and remove the old battery following the laptop manufacturer’s instructions. Insert the T6 Power replacement ensuring correct alignment with contacts and mounting points, then secure it in place. Reconnect AC power and allow the system to recognise the new battery; perform a full charge cycle before regular use to calibrate charge reporting if recommended by the laptop manufacturer.
What to consider before purchase
Confirm your laptop model is listed among compatible models (Latitude 3440, 3540; specific Inspiron and Vostro models)
Check physical dimensions and connector type against your existing battery
Decide if the 5200 mAh capacity meets your expected runtime needs
Usage recommendations
For best results, use the battery at moderate temperatures, avoid deep discharges when possible, and follow the laptop manufacturer’s guidelines for battery care. If the system firmware prompts for battery calibration after installation, complete the recommended steps.

## FAQ

### How much does the Battery T6 Power for Dell Latitude 3440 3540 cost, and is it available for purchase?

The price is 65.99 € (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. 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 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/3552732/51190901_large.webp