# Battery MITSU for Dell Inspiron 15 (5542) / 14 (5445), 3800 mAh / 43 Wh

**URL:** https://aio.lv/en/product--mitsu-5bm303--3054132
**Data updated:** 2026-05-12 10:00 (EEST)
**Category:** Portable Device Batteries
**Manufacturer:** MITSU
**Manufacturer code:** 5BM303
**EAN:** 5903050373177
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mitsu-5bm303--3054132

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Replacement laptop battery by MITSU compatible with Dell Inspiron 15 (5542) and Inspiron 14 (5445). Capacity 3800 mAh (43 Wh) provides power for everyday mobile use, offering a direct swap for the original unit. Suitable for extending unplugged runtime, supporting web browsing, office work and travel. Check compatibility with your exact model before purchase.

## Long description

The MITSU replacement battery for Dell Inspiron 15 (5542) and 14 (5445) is a reliable power solution designed to restore your laptop's mobility. Engineered to meet high quality standards, this battery provides a stable power supply for your device, ensuring that you can continue working or browsing without being tethered to a wall outlet. It serves as a direct replacement for the original battery, maintaining compatibility with your laptop's power management system.
Advantages
This battery offers a dependable capacity of 3800 mAh, which is optimized to provide consistent performance for daily computing tasks. By choosing this MITSU replacement, you benefit from a product that is built with safety and longevity in mind, featuring protection against overcharging and short circuits. Its design ensures a precise fit within the battery compartment, making the installation process straightforward and hassle-free for the user.
Suitable for
Daily office tasks and document editing
Web browsing and media consumption
Travel and mobile work environments
Replacing a degraded or non-functional original battery
When it may not be suitable
This battery is specifically designed for the Dell Inspiron 15 (5542) and 14 (5445) models. It will not be suitable for other laptop series or brands. If your laptop requires a higher capacity battery for professional-grade video editing or intensive gaming, you may find that this standard capacity unit provides less runtime than an extended-life version.
Key specifications
Capacity: 3800 mAh / 43 Wh
Voltage: 10.8 - 11.1 V
Compatibility: Dell Inspiron 15 (5542) and 14 (5445)
Technology: Lithium-ion
How to use
To install the battery, first ensure your laptop is completely powered off and disconnected from the power adapter. Remove the old battery by releasing the locking mechanism on the underside of the laptop. Insert the new MITSU battery into the slot until it clicks securely into place. Once installed, it is recommended to charge the battery fully before the first use to calibrate the power levels.
What to consider before purchase
Verify your laptop model number matches the supported list
Check the voltage requirements of your current battery
Ensure the physical shape of your existing battery matches the replacement
Usage recommendations
To maximize the lifespan of your new battery, avoid exposing the laptop to extreme temperatures and try to keep the charge level between 20% and 80% during regular use.

## FAQ

### How much does the Battery MITSU for Dell Inspiron 15/14 3800 mAh 43 Wh cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 22.06.2026 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 MITSU 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 MITSU 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/3054132/52126237_large.webp