# Rechargeable Lithium-ion Battery Fenix MR18650 2600mAh 3.7V, single cell

**URL:** https://aio.lv/en/product--fenix-039-129--11880012
**Data updated:** 2026-03-09 20:47 (EET)
**Category:** Batteries
**Manufacturer:** Fenix
**Manufacturer code:** 039-129
**EAN:** 6942870303499
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fenix-039-129--11880012

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Fenix MR18650 is a single rechargeable lithium-ion cell with 2600mAh nominal capacity and 3.7V nominal voltage. Designed for use in torches, power banks, and other portable devices that accept 18650 cells. Provides high energy density, standard cylindrical 18650 size for compatibility, and is supplied as one individual battery for replacement or DIY projects.

## Long description

Fenix MR18650 is a single rechargeable lithium-ion cell with a nominal capacity of 2600mAh and a nominal voltage of 3.7V. The cell conforms to the standard 18650 cylindrical format, making it compatible with a wide range of portable devices such as torches, power banks, and other equipment that accept 18650 batteries. Supplied as an individual replacement cell, the MR18650 delivers high energy density suitable for applications requiring sustained runtime and dependable rechargeability.
Advantages
The Fenix MR18650 battery offers a balance of capacity and size, providing extended run times compared with smaller-format rechargeable cells while maintaining the standard 18650 dimensions for broad compatibility. Its lithium-ion chemistry ensures stable nominal voltage and efficient energy storage for repeated charge/discharge cycles. Supplied as a single cell, it is convenient for direct replacement, battery packs, or DIY projects where one high-capacity 18650 cell is required.
Suitable for
Tactical and handheld torches that accept 18650 cells
Portable power banks and DIY power packs
Rechargeable battery holders and multi-cell battery assemblies
Electronic devices and tools designed around 18650 form factor
Key specifications
Cell type: Lithium-ion rechargeable cell
Nominal capacity: 2600 mAh
Nominal voltage: 3.7 V
Form factor: 18650 cylindrical cell
Configuration: Single individual cell for replacement or assembly
How to use
Insert the MR18650 cell into a compatible device observing correct polarity. Charge the cell only with a charger designed for lithium-ion 18650 cells and follow the charger manufacturer’s instructions. Do not attempt to force the cell into devices that require protected or different-sized cells. For assemblies or DIY battery packs, ensure proper insulation, secure connections, and use a suitable battery management system if multiple cells are combined.
Usage recommendations
Charge with a dedicated 18650 lithium-ion charger, avoid deep discharge below the device-recommended cut-off voltage, store in a cool, dry place at partial charge for long-term storage, and replace the cell if it shows signs of damage, swelling, or significant capacity loss.

## FAQ

### How much does the Fenix MR18650 Rechargeable 2600mAh Battery cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 431 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 08.07.2026 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. 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 Fenix 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 Fenix 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/11880012/67298225_large.webp