Fenix ARB-L18-3400mAh 18650 Battery: Power That Keeps Up With the Night

Power that actually keeps up when the trail goes dark. The ARB-L18-3400mAh is a rechargeable 18650 battery with built-in protection and a button-top design that plays nicely with a wide range of flashlight brands. AXG Life, Life, Adventure-Ready.

Key Features & Design

• 18650-size lithium-ion rechargeable battery with a capacity of 3400mAh.
• New button-top design to accommodate a variety of flashlight brands.
• Built-in protections to prevent short circuits and provide multiple layers of protection within the cell.
• Designed to power powerful LED flashlights, offering rechargeability, long battery life, and the ability to handle the power requirements of advanced LEDs.
• Rated for up to 500 charge cycles for impressive overall lifespan.
• Sold as a single unit (one battery per order).
• Shipping note: Lithium ion batteries are considered “dangerous goods” and typically ship by ground; orders containing loose batteries may take longer (14+ days is not uncommon).

Performance / Benefits

This battery keeps your kit honest when you’re chasing after the next glow-in-the-dark moment. With up to 500 recharge cycles, it’s built to ride with you for many adventures without begging you for disposables. Its built-in protections help prevent shorts, and the button-top design ensures compatibility across a broad spectrum of flashlights—no more hunting for a mismatched fit on the trail.

For those who live AXG Life and want Life, Adventure-Ready power, this ARB-L18-3400mAh lets you push through the darkest miles, turn midnight into momentum, and keep story-worthy campfires burning brighter than your headlamp.

Shipping note: Lithium ion batteries are considered dangerous goods and typically ship via ground; orders containing loose batteries may take longer than usual (14+ days isn’t rare).

Ready to roll? Add to cart and keep your nights bright on the next expedition.