# Battery 2-Power 14.4V 4-cell 37Wh (2300mAh, 0.237kg) replacement for J399N

**URL:** https://aio.lv/en/product--2-power-2p-j399n--1953101
**Data updated:** 2026-03-07 11:02 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** 2-Power
**Manufacturer code:** 2P-J399N
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--2-power-2p-j399n--1953101

## 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

Rechargeable laptop battery by 2-Power, nominal voltage 14.4 V, 4 lithium‑ion cells, rated energy 37 Wh and capacity 2300 mAh. Designed as a replacement for models using J399N, weight 0.237 kg. Suited for restoring portable power in compatible notebooks and for carrying spare power on travel or field work.

## Long description

Rechargeable 2-Power laptop battery with nominal voltage 14.4 V, comprised of 4 lithium‑ion cells, rated energy 37 Wh and capacity 2300 mAh. This replacement battery is designed for notebooks that use the J399N form factor and electrical characteristics. Weighing 0.237 kg, it restores portable power to compatible laptops and is compact enough to carry as a spare for travel or field work. The pack integrates 2-POWER’s protection features to help maintain safe charging and discharge behaviour.
Advantages
The battery offers a balance of energy density and lightweight design, providing 37 Wh of rated energy in a 0.237 kg package. Using high-grade lithium‑ion cells, it delivers predictable charging and discharge performance and supports typical laptop power demands. Built-in protection electronics monitor charge and discharge to reduce risk of short circuit and overheating, and the unit is manufactured as a drop-in replacement for systems that specify the J399N type.
Suitable for
 Replacing a depleted battery in notebooks that accept J399N-compatible packs
 Carrying as a spare battery for travel or remote work
 Temporary power for on-site diagnostics, demonstrations, or field use
Key specifications
 Nominal voltage: 14.4 V
 Cell type: Lithium‑ion (4 cells)
 Rated energy: 37 Wh
 Capacity: 2300 mAh
 Weight: 0.237 kg
 Compatibility: designed as a replacement for devices using the J399N battery type
 Protection: integrated charging/discharging protection against short circuit and overheating
How to use
Power down the laptop and disconnect any external power supply before removing the existing battery. Follow the notebook manufacturer’s instructions to unlock and remove the original pack, then fit the 2-Power replacement in the same orientation until it seats and locks. Reconnect the external power adapter and allow the new battery to charge fully before first use for optimal calibration. Use device status indicators or operating system battery tools to confirm correct recognition and charge level.
Usage recommendations
Store and operate the battery within manufacturer-recommended temperature ranges. Avoid exposing the pack to prolonged high temperatures, moisture, or mechanical shock. For long-term storage, keep the battery partially charged (around 40–60%) and check its state periodically. Use only compatible chargers and follow the laptop maker’s safety guidance when replacing batteries.

## Specifications

### Battery

| Feature | Value |
|---|---|
| Battery capacity | 2300 mAh |
| Number of battery cells | 4 |
| Battery voltage | 14.4 V |
| Battery capacity | 33 Wh |

### Technical details

| Feature | Value |
|---|---|
| Type | Battery |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.237 kg |
| Height | 20 mm |
| Width | 48 mm |
| Depth | 205 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 250 mm |
| Package height | 48 mm |
| Package width | 110 mm |

## FAQ

### How much does the 2-Power 14.4V 4-cell 37Wh laptop battery cost, and is it available for purchase?

The price is 46.99 € (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 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. 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 2-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 2-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

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

When making a choice, we recommend paying attention to the key features: battery capacity, weight, 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/1953101/55870909_large.webp