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Fenix 18650 USB Rechargeable Battery 3500mAh
Please welcome the Fenix 18650 3500U USB rechargeable Li-ion battery! This battery can be charged by its built-in USB port or by an external battery charger as well. A protective circuit is built into the anode and covered with a riveted steel hat. The battery is fully covered with the steel shell; thus, the potential risk of short circuiting caused by collision or impact is hugely eliminated!
Specifications:
- Fenix ARB-L18-3500U mAh USB Rechargeable 18650 Battery
- Micro USB charging port lets you charge the battery directly
- Button-Top Design
- Protection circuit built in the anode with a riveted steel hat. Riveted steel shell eliminates the risk of short circuit caused by collision and impact.
- Pressure Relief Vent: Expels waste gas generated by internal short circuit. Expelling waste gas prevents a cell from inflating or exploding.
- Three Sets of Over-Heat Protection: Overcharge protection, Over-discharge protection, Short-circuit protection, and overheating protection
- 500 Charge Cycles: A properly maintained ARBL18 battery is designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles.
**USB Cable NOT Included**

Fenix is a leading brand in high-performance lighting solutions, specializing in durable and powerful flashlights, headlamps, and tactical illumination equipment. Built for demanding environments, Fenix products are widely used in outdoor activities, search and rescue operations, security, and everyday carry applications.
Known for their exceptional brightness, reliability, and long battery life, Fenix lights are engineered with advanced LED technology and robust materials to ensure performance in extreme conditions. From compact everyday flashlights to high-output tactical torches and rechargeable headlamps, the brand delivers precision lighting for every situation.
Available at Petridi in Thessaloniki since 1949, Fenix is a trusted choice for professionals and outdoor enthusiasts who require dependable lighting in the field.