





- Product Code: 6942870304724
- EAN: 6942870304724
- Immediately from our warehouseThe product will be sent in 2-4 days
- Delivery costs starting from 5,99 € (Estonia)
Fenix ARB-L18-3500U 18650 USB is a rechargeable Li-ion battery for Fenix lights and other compatible devices. It is designed for users who need a reliable, protected and long-lasting power source for outdoor, work and hobby use.
Key model-specific details include capacity 3500 mAh, protection overcharge, over-discharge, short-circuit and overheating protection.
The battery is a practical spare power source for longer trips, work shifts and hunting days. The protected structure supports safe use, and keeping a spare battery available reduces interruptions when the light is used regularly or for long periods.
Fenix ARB-L18-3500U 18650 USB - Features:
- Type: rechargeable Li-ion battery
- Battery size: 18650
- Capacity: 3500 mAh
- Nominal voltage: 3,6 V
- Protection: overcharge, over-discharge, short-circuit and overheating protection
- Construction: protected battery with steel protection structure
- Charging port: micro-USB charging port
- Charging current: USB-lataus 1 A recommended, laturilla 1,5 A recommended / 3 A maximum
- Dimensions: Ø18,6 x 70 mm
- Weight: 50 g
- Charging indicator: red while charging, blue when ready for use
- Note: the battery is longer than a standard 18650 cell, check device compatibility
Summary: Fenix ARB-L18-3500U 18650 USB is a practical and carefully specified product for users who need reliable Fenix equipment in its intended use. Its model-specific construction, power solution and compatible accessories make it suitable for regular outdoor, work and hobby use.
Recommended use: Suitable for users who need a reliable Fenix product for its intended purpose. Check model compatibility, battery type and mounting requirements before use.
Product text updated 13.8.2026.
