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Fenix ARB-L18 3400mAh 18650 Button Top Li-on Battery


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This is the new Fenix design 18650 button-top battery. This new 18650 battery is specifically designed for high-drain devices.

The Fenix ARB-L18-3400 is the latest addition to Fenix’s collection of rechargeable lithium-ion batteries. This 18650 cell offers an impressive capacity of 3400mAh, which is ideally meant for use in high-drain devices, such as flashlights. The Fenix ARB-L18-3400 was designed with safety in mind. The powerful battery is equipped with a protection circuit that is built into the anode. The protection circuit is fitted with a steel hat so that the entire cell may be covered with a steel shell, thus eliminating any risk of short circuiting caused by impact or collision. The PCB circuit also prevents a user from overcharging or over-discharging the battery. In addition to the PCB circuit, the 18650 lithium-ion battery includes pressure relief vents, just in case a short circuit does occur. While rare, these vents provide a safe way to expel waste gas from inside, which will prevent the cell from inflating and from ultimately exploding.


A single Fenix ARB-L18 3400mAh 18650 Button Top Li-on Battery (1 battery per order)

3400 mAh 3.6V high-capacity battery with outstanding performance

Button-top design

Protective Circuit inside the anode

Three sets of over-heat protection

Three levels of built-in over charge and over discharge protection circuit ensure the max performance of the battery

500 Charge Cycles (A properly maintained ARB-L2S battery is designed to retain up to 70% of its original capacity at 500 full charge and discharge cycles)

Compact design, suitable for various high-intensity flashlights

No battery memory effect, negligible self-discharge

Technical Parameters:

Model ARB-L2S

Capacity:  3400 mAh

Voltage: 3.6V

Charging Current: Recommended 1A, maximum 2A

Weight: 49g

Size:  Diameter 18.6mm (0.7″), Height 69mm (2.7″)

Warranty Period:  12-month free warranty period from purchase date

Weight0.5 kg


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