# Rechargeable Lithium-ion Battery Nitecore 18650 4000mAh NITNL1840

**URL:** https://aio.lv/en/product--nitecore-nitnl1840--11879537
**Data updated:** 2026-03-09 20:46 (EET)
**Category:** Batteries
**Manufacturer:** Nitecore
**Manufacturer code:** NITNL1840
**EAN:** 6952506496396
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 31.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nitecore-nitnl1840--11879537

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Nitecore 18650 4000mAh is a rechargeable lithium-ion battery (model NITNL1840) in the 18650 format. It provides nominal 4000mAh capacity for devices that accept 18650 cells, such as flashlights, vaporizers, portable lamps and power banks. Use for extended runtime, with standard cylindrical size for compatible battery holders and chargers.

## Long description

The Rechargeable Lithium-ion Battery Nitecore 18650 4000mAh NITNL1840 is a high-capacity 18650-format cell designed for devices that accept standard cylindrical lithium-ion batteries. It delivers a nominal capacity of 4000mAh and is intended to extend runtime in compatible equipment such as flashlights, portable lamps, vaporizers and power banks while fitting common 18650 battery holders and chargers.
Advantages
This 18650 cell provides a balance of high capacity and standard dimensions, enabling longer operating times without changing device housings or adapters. The lithium-ion chemistry offers relatively low self-discharge and consistent power output during discharge. The cell is rechargeable, allowing repeated use and reducing the need for disposable batteries. Its compatibility with common 18650 chargers and devices simplifies replacement and maintenance.
Suitable for
 Handheld flashlights and tactical lamps
 Portable lamps and work lights
 Personal vaporizers and similar devices that accept 18650 cells
 Power banks and DIY battery packs using 18650-format cells
Key specifications
 Cell format: 18650 cylindrical lithium-ion
 Nominal capacity: 4000 mAh
 Chemistry: lithium-ion
 Rechargeable: yes
 Typical nominal voltage: 3.6–3.7 V
 Standard cylindrical dimensions: approx. 18 mm diameter × 65 mm length
How to use
Insert the cell into devices that accept 18650-format batteries, observing correct polarity markings and the device manufacturer's instructions. Charge the battery using a charger designed for 18650 lithium-ion cells and follow the charger's recommended current and charging procedure. Do not attempt to force the cell into incompatible holders or to modify the cell to fit device contacts. Replace batteries in pairs or matched sets when used in multi-cell battery packs to maintain balanced performance.
Usage recommendations
Use a dedicated 18650 lithium-ion charger with appropriate protection features such as overcharge and reverse polarity protection. Store batteries in a cool, dry place and avoid exposure to heat or direct sunlight. Inspect cells for damage or swelling before each use; discontinue use and recycle if the cell shows signs of deformation, leakage, or other damage.

## FAQ

### How much does the Nitecore 18650 4000mAh rechargeable battery cost, and is it available for purchase?

The price is 38.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 30.06.2026 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 Nitecore 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 Nitecore 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/11879537/67297517_large.webp