Fenix ARB-L18-3500 High-Capacity 18650 Battery — Power That Keeps Up with the Night

Meet the ARB-L18-3500mAh 18650 battery—the stubbornly reliable power your flashlight deserves. Rechargeable, durable, and ready to run longer than your last campfire story, it’sLife, Adventure-Ready energy from AXG Life that actually sticks around when the trail gets real.

Key Features & Design

• 18650-size rechargeable Li-ion battery with a robust 3500mAh capacity.
• Button-top design for dependable contact across a range of Fenix LED flashlights.
• Protective features include short-circuit prevention and multiple layers of protection for safer charging and use.
• Durable, reliable power built for high-drain devices and rugged outdoor use.
• Packaged and priced as a single battery.
• Shipping note: Lithium-ion batteries are considered dangerous goods and typically ship via ground; orders containing loose batteries may take longer (14+ days common).

Performance / Benefits

With a solid 3500mAh, this cell stretches run-times between charges, keeping high-output flashlights alive through long nights and backcountry ventures. It’s designed to handle demanding use without drama, and the protective features reduce risk during messy outdoor transitions—from wet hands to cold fingers. Whether you’re trail-running at midnight or mapping a remote campsite, this battery delivers dependable power so your gear stays ready when the moment matters.

From the Fenix Store, you’re tapping into a reputation for rugged reliability and performance under pressure. In AXG terms, it’s the kind of power that helps turn marginal decisions into memorable stories—without the fear of a dead light mid-story.

Category-wise, this lives in Electronics > Electronics Accessories > Power > Batteries, and it’s the right fit for serious lighting setups that rely on steady, high-capacity power.

Ready to power through the next adventure? Toss this one in your pack and keep your trail glow going—add to cart and let the night know you’re coming.