Fenix Battery Rechargeable W/USB Port 18650 3500 Mah

• Article number: ARB-L18-3500U

The Fenix ARB-L18-3500 is a high-capacity 18650 rechargeable Li-ion battery, offering 3500 mAh within a standard size that fits most high-performance flashlights. Built for safety and durability, it includes a button-top design, integrated protection circuitry against overcharge, over-discharge, short-circuit, and overheating, plus pressure relief vents to prevent buildup and reduce risk of swelling or rupture. A robust steel-infused anode structure further improves impact resistance and electrical safety. This cell is rated for up to 500 charge cycles, maintaining around 75% capacity afterward. 

Specifications  

• Capacity & Voltage: 3500 mAh, 3.6 V
• Protection features: Overcharge, over-discharge, short-circuit, overheat protection; pressure relief vents; reinforced steel anode.
• Design: Button-top, compatible with Fenix and other 18650 devices.
• Durability: Up to 500 charge cycles, retains -75% capacity over time.
• Size & Weight: Approx 69mm length x 18.6 mm diameter; -50 g

A reliable, long-lasting, and safe power solution - perfect for tactical flashlights, headlamps, lanterns, and high-drain devices.