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header-product Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port
27.49 €

Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port

Fenix ARB-L18U V3.0 18650 3400 mAh Battery Photo 1

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Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port

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Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port

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Short description

Fenix ARB-L18U V3.0 rechargeable battery in 18650 format with a capacity of 3400 mAh. Equipped with a built-in USB charging port for convenient power replenishment. Designed to provide reliable and long-lasting energy for high-drain electronic devices such as LED flashlights, headlamps, and other compatible portable gear.
Available for order: 172 pcs.
Warranty: 2 Years
SKU: 12730886
Manufacturer: Fenix
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
24.11.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
27.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
27.11.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port is a high-capacity power source engineered to deliver reliable and consistent energy for demanding portable electronics. Featuring a standard 18650 form factor and an integrated USB charging port, this battery combines traditional charging methods with modern convenience, allowing users to replenish power directly through a USB cable without requiring a standalone charger.

Advantages

This rechargeable battery stands out due to its substantial 3400 mAh capacity, which ensures extended operational runtimes for high-drain devices. The inclusion of a built-in USB port simplifies the charging process by eliminating the need for external battery cradles or chargers in field conditions. Built with advanced safety mechanisms, it provides protection against overcharge, over-discharge, short circuits, and overheating, while the steel shell riveting offers robust physical impact resistance.

Suitable for

  • High-performance LED flashlights
  • LED headlamps
  • Compatible portable electronic equipment requiring 18650 cells

When it may not be suitable

This battery is not designed for devices that require standard alkaline dimensions or formats other than 18650. It may also not fit older or poorly toleranced flashlight models that lack the necessary internal clearance for protected 18650 cells with integrated USB ports.

Key specifications

  • Battery format: 18650
  • Capacity: 3400 mAh
  • Charging method: Built-in USB charging port

How to use

To charge the battery, connect a compatible USB cable directly to the built-in charging port located on the cell. An indicator light will display the charging status, switching color once the charging cycle is complete. Ensure proper polarity alignment when inserting the battery into your device according to the manufacturer markings.

What to consider before purchase

  • Verify the required battery size and voltage compatibility with your device
  • Check the physical compartment dimensions of your equipment to ensure a protected 18650 cell with a USB port fits correctly
  • Assess your preferred charging method to determine if direct USB charging meets your operational needs
Usage recommendations: Store the battery in a cool, dry place away from direct sunlight and extreme temperatures. If the battery is to remain unused for an extended period, it is recommended to charge it to approximately 50 percent capacity every few months to maintain optimal cell health and performance.

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Product comparison

The main product Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port is compared with similar power cells from the Fenix brand: Fenix ARB-L18U 18650 Li-ion Battery 3400 mAh 3.6V with USB Port, Fenix ARB-L18U Rechargeable Battery 18650 4000 mAh 3.6V USB, Fenix ARB-L18 Rechargeable Battery 18650 3400 mAh 3.6 V Li-ion, Fenix ARB-L18P 18650 Rechargeable Li-ion Battery 3000 mAh 3.6 V, and Rechargeable 18650 Li-Ion battery Fenix ARB-L18-3500U 3500 mAh. All items are built in the standard 18650 format and designed for high-drain portable equipment such as LED flashlights and headlamps. The key differences lie in battery capacity, nominal voltage, and the presence or absence of a built-in USB charging port.

⚙️ The table below compares essential specifications such as battery capacity, nominal voltage, built-in USB charging port availability, and structural features to help understand their practical impact on runtime and convenience.

ParameterFenix ARB-L18U V3.0 (3400 mAh USB)Fenix ARB-L18U (3400 mAh USB)Fenix ARB-L18U (4000 mAh USB)Fenix ARB-L18 (3400 mAh)Fenix ARB-L18P (3000 mAh)Fenix ARB-L18-3500U (3500 mAh)Practical significance
Form factor186501865018650186501865018650All batteries share the exact same physical dimensions for equipment compatibility.
Capacity3400 mAh3400 mAh4000 mAh3400 mAh3000 mAh3500 mAhHigher capacity provides longer operating time between recharges.
Built-in USB portYesYesYesNoNoYesDirect USB charging simplifies power replenishment on the go without a separate charger.
VoltageNot specified3.6V3.6V3.6 V3.6 VNot specifiedStandard operating voltage ensures safe and stable device compatibility.

◎ The suitability table below evaluates which option is better suited for various user needs and usage scenarios.

Use caseRecommended productWhy
Maximum runtimeFenix ARB-L18U Rechargeable Battery 18650 4000 mAh 3.6V USBFeatures the highest capacity at 4000 mAh, delivering the longest operational duration for demanding gear.
Convenient charging without external chargersFenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB PortBuilt-in USB port allows direct recharging, making it ideal for travel and outdoor use.
Traditional setup with external charging docksFenix ARB-L18 Rechargeable Battery 18650 3400 mAh 3.6 V Li-ionReliable option without a built-in port, suitable for users who prefer charging via dedicated charging devices.
The Fenix ARB-L18U V3.0 Rechargeable Battery 18650 3400 mAh with USB Port differs from alternatives by combining a balanced 3400 mAh capacity with a convenient built-in USB charging port. It is best suited for users who value straightforward recharging in the field without carrying extra accessories. If maximum endurance is the priority, the 4000 mAh version is more appropriate, whereas models without a USB port suit users relying on standard desktop charging setups.
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Customer reviews

Customer questions

FAQ

How much does the Fenix ARB-L18U V3.0 18650 3400 mAh Battery cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 172 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 24.11.2026 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?

qalxurnevizo.shop 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. qalxurnevizo.shop 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 qalxurnevizo.shop

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 qalxurnevizo.shop (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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