# Battery BTI for Dell Latitude 5420 Rugged 11.4V 51Wh (3-cell) Black

**URL:** https://aio.lv/en/product--bti-7wnw1-bti--12117383
**Data updated:** 2026-03-26 06:21 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** BTI
**Manufacturer code:** 7WNW1-BTI
**EAN:** 5056006198345
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 155.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 128.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bti-7wnw1-bti--12117383

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Replacement BTI lithium‑ion battery for Dell Latitude 5420 Rugged notebooks, nominal voltage 11.4 V and capacity 51 Wh (approximately 4342 mAh). 3‑cell design in black finish, supplied as a single unit. Intended to restore or extend mobile runtime for field, industrial or on‑site computing where rugged laptops are used.

## Long description

Replacement BTI lithium‑ion battery for Dell Latitude 5420 Rugged notebooks, nominal voltage 11.4 V and capacity 51 Wh (approximately 4342 mAh). The 3‑cell battery in a black finish is supplied as a single unit and is designed to restore or extend mobile runtime for field, industrial and on‑site computing where rugged laptops are used. This battery uses Li‑Ion chemistry and matches the physical form factor and electrical requirements of the specified Dell Latitude 5420 Rugged model to provide a straightforward swap-in replacement.
Advantages
The battery offers a direct replacement option compatible with the Dell Latitude 5420 Rugged, enabling reliable mobile power without modifying the device. Its lithium‑ion technology provides a balance of energy density and weight, while the 3‑cell design and 11.4 V nominal voltage align with the notebook’s original power specifications. Supplied as a single black unit, the battery is suitable for field technicians and users who need to quickly restore runtime or carry a spare for extended deployments.
Suitable for
 On-site and field work using Dell Latitude 5420 Rugged laptops
 Industrial environments where a robust spare battery is required
 Mobile professionals needing extended runtime or a replacement battery
 Equipment maintenance and fleet laptop servicing
Key specifications
 Battery technology: Lithium‑Ion (Li‑Ion)
 Nominal voltage: 11.4 V
 Energy capacity: 51 Wh (approximately 4342 mAh)
 Cell count: 3‑cell design
 Product colour: Black
 Quantity: 1 unit
How to use
Power down the Dell Latitude 5420 Rugged and disconnect any external power source. Remove the existing battery according to the laptop manufacturer’s instructions and replace it with the BTI battery, ensuring correct alignment of connectors and secure installation. After installation, charge the battery fully before use to allow the notebook’s battery management system to calibrate. Follow any device-specific prompts displayed by the operating system or BIOS to confirm battery status.
Usage recommendations
Store and operate the battery within the temperature and handling limits recommended by the laptop manufacturer. Avoid exposing the battery to extreme heat, moisture, or mechanical shock. For optimal long-term performance, cycle the battery periodically if devices are stored for extended periods and use original or compatible chargers rated for the device. Dispose of the battery in accordance with local electronic waste regulations.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 4342 mAh |
| Number of battery cells | 3 |
| Battery voltage | 11.4 V |
| Battery capacity | 49 Wh |
| Number of batteries included | 1 pc(s) |
| Product colour | Black |

### Technical details

| Feature | Value |
|---|---|
| Brand compatibility | Dell |

## FAQ

### How much does the BTI Battery for Latitude 5420 Rugged 11.4V 51Wh cost, and is it available for purchase?

The price is 155.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 23.07.2026 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 BTI Battery for Latitude 5420 Rugged 11.4V 51Wh 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 BTI 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 BTI 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: battery technology, battery capacity, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for BTI Battery for Latitude 5420 Rugged 11.4V 51Wh?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12117383/67665422_large.webp