# Lithium-Ion laptop battery MicroBattery K4Y2J for DELL, black

**URL:** https://aio.lv/en/product--microbattery-k4y2j--10923498
**Data updated:** 2026-03-17 09:05 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** MicroBattery
**Manufacturer code:** K4Y2J
**EAN:** 5704174265610
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 103.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 85.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--microbattery-k4y2j--10923498

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Replacement laptop battery MicroBattery K4Y2J, Lithium‑Ion (Li‑Ion) chemistry, black finish. Designed for compatibility with DELL laptop models that accept the K4Y2J spare part. Provides portable power for mobile work, travel and device maintenance. Use as a direct OEM-style replacement to restore battery runtime and mobility.

## Long description

MicroBattery K4Y2J is a replacement Lithium‑Ion laptop battery in black, designed for DELL laptops that accept the K4Y2J spare part. It provides portable power to restore battery runtime and mobility for mobile work, travel and device maintenance. The battery is intended as a direct OEM‑style replacement to replace a worn or failing original pack and maintain the laptop's on‑battery operation.
Advantages
The MicroBattery K4Y2J uses Lithium‑Ion (Li‑Ion) chemistry to deliver consistent energy density and a compact form factor suitable for notebook use. Its black finish matches typical laptop aesthetics and the design is focused on compatibility with DELL models that require the K4Y2J spare part. As a replacement battery it allows users to regain untethered operation without altering the original charging system or device hardware.
Suitable for
Replacing a depleted or failing battery in DELL laptops that accept the K4Y2J spare part
Restoring portable power for mobile work and travel
Keeping a backup battery for device maintenance or extended use away from AC power
Key specifications
Battery technology: Lithium‑Ion (Li‑Ion)
Product colour: Black
Form factor: 4-cell laptop battery (designed for compatible DELL models)
Intended use: OEM-style replacement for compatible DELL laptops
How to use
Power down the laptop and disconnect any external power source before replacing the battery. Remove the existing battery according to the laptop manufacturer’s instructions and insert the MicroBattery K4Y2J into the battery bay until it locks securely. Reconnect AC power and allow the system to recognize and charge the new battery. After installation, verify battery status in the operating system and perform a full charge cycle if recommended by the laptop manufacturer.
Usage recommendations
Use the MicroBattery K4Y2J only with DELL laptops specified to accept the K4Y2J spare part. Follow safety guidelines for Lithium‑Ion batteries: avoid exposure to extreme heat, do not puncture or disassemble, and store in a cool, dry place when not in use. Dispose of depleted batteries according to local regulations.

## Specifications

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

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Number of battery cells | 4 |
| Battery capacity | 60 Wh |
| Product colour | Black |

### Technical details

| Feature | Value |
|---|---|
| Type | Battery |
| Brand compatibility | Dell |

## FAQ

### How much does the MicroBattery K4Y2J laptop battery cost, and is it available for purchase?

The price is 103.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 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 21.07.2026 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 MicroBattery K4Y2J laptop battery 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 MicroBattery 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 MicroBattery 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, 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.

## Image

https://aio.lv/img/cache/product/10923498/65721367_large.webp