Fenix ARB-L18-3500U 18650 3500 mAh 3.6 V rechargeable battery with micro-USB port (Fenix, SKU: ARB-L18-3500U) is a protected, high-capacity lithium-ion cell designed to power compatible flashlights and other devices using 18650 batteries. The built-in micro-USB port allows the battery to be charged directly using a USB cable, without the need for a separate charger.

Key features

• built-in micro-USB charging port
• can be charged via the micro-USB port or a compatible charger
• protection against short circuits, overcharging, excessive discharge and overheating
• steel casing reducing the risk of a short circuit caused by impact or mechanical damage
• safety vents protecting against excessive pressure build-up
• charging status indicator: red during charging and blue when charging is complete

Set contents

• Fenix ARB-L18-3500U rechargeable battery

Technical specifications

• cell type: lithium-ion
• battery format: 18650
• capacity: 3500 mAh
• nominal voltage: 3.6 V
• charging port: micro-USB
• charging current via micro-USB port: 0.8 A
• recommended charging current in a charger: 1 A
• maximum charging current in a charger: 2 A
• service life: up to 500 charging cycles
• protection circuit: yes
• length: 70 mm
• diameter: 18.6 mm
• weight: 50.2 g
• charging cable: not included

The built-in micro-USB port and protection circuit make the battery easier to charge safely and use daily in compatible devices.