The Fenix ARB-L18-3400U V3.0 is a 3400 mAh 18650 lithium-ion battery for compatible flashlights and headlamps.
The Fenix ARB-L18-3400U V3.0 is a 3400 mAh 18650 lithium-ion battery for compatible flashlights and headlamps. This version has a USB-C port for charging the battery directly via a cable. The battery can also be charged in a suitable lithium-ion battery charger. Suitable for Use as a USB-C rechargeable spare battery for hiking and travel Powering the Fenix PD35 V3.0 flashlight Use in a compatible light that takes a protected 18650 battery Replacing the previous 3400 mAh Micro-USB battery if the light supports the dimensions of the V3.0 Why choose the Fenix ARB-L18-3400U V3.0? 3400 mAh capacity in the 18650 size class Built-in USB-C charging port with a charging current of up to 1.5 A Two-colour indicator for monitoring charging Protection circuit helps protect the battery against short circuits, overcharging and deep discharge Technical specifications Manufacturer: Fenix Model: ARB-L18-3400U V3.0 Battery type: protected 18650 lithium-ion battery Capacity: 3400 mAh Nominal voltage: 3.6 V Charging port: USB-C Charging current via USB-C: 1.5 A Charging current in a separate charger: 700 mA recommended, 3.3 A maximum Charging indicator: red while charging, blue when fully charged Length: 70 mm Diameter: 18.75 mm Weight: 55 g Included 1 × Fenix ARB-L18-3400U V3.0 battery Frequently asked questions How does the 3400U V3.0 differ from the previous 3400U battery? Both have a nominal capacity of 3400 mAh. The V3.0 has a USB-C charging port, while the previous ARB-L18-3400U model has a Micro-USB port. Can the V3.0 battery be charged in a separate charger? Yes. Choose a lithium-ion battery charger that supports a 70 mm long protected 18650 battery. The charging current recommended by Fenix for a separate charger is 700 mA. Does a USB-C cable need to be selected separately? Yes. To charge the battery, choose a suitable USB-C charging cable and USB power source. When is the Fenix ARB-L18-3400U V3.0 the right choice? The V3.0 is suitable if you use a compatible 18650 light and want to charge a spare battery via USB-C. If you prefer to continue using your existing Micro-USB charging equipment, the previous 3400U offers the same nominal capacity. Our recommendation Before ordering, check whether the light's battery compartment can accommodate a 70 × 18.75 mm protected battery. The 18650 designation indicates the battery size class. The protection circuit and charging port affect the actual external dimensions, which is particularly important for lights with a narrower battery compartment. If you are replacing a previous 3400U battery, check both the model designation and the shape of the charging port. If you use one USB power source for both your phone and your light's spare battery, try charging the battery with the cable you intend to take along before your trip. For longer evening use, fully charge the spare battery before setting off and keep it in a battery case. This way, you can replace the battery immediately if needed and recharge the depleted battery later. 3400 mAh 18650 battery for USB-C charging The Fenix ARB-L18-3400U V3.0 combines a 3400 mAh capacity with charging directly through the battery. Choose product code FX-ARB-L18-3400U-V3.0 if you specifically need the USB-C version.
The Fenix ARB-L18-3400U V3.0 is a 3400 mAh 18650 lithium-ion battery for compatible flashlights and headlamps. This version has a USB-C port for charging the battery directly via a cable. The battery can also be charged in a suitable lithium-ion battery charger. Suitable for Use as a USB-C rechargeable spare battery for hiking and travel Powering the Fenix PD35 V3.0 flashlight Use in a compatible light that takes a protected 18650 battery Replacing the previous 3400 mAh Micro-USB battery if the light supports the dimensions of the V3.0 Why choose the Fenix ARB-L18-3400U V3.0? 3400 mAh capacity in the 18650 size class Built-in USB-C charging port with a charging current of up to 1.5 A Two-colour indicator for monitoring charging Protection circuit helps protect the battery against short circuits, overcharging and deep discharge Technical specifications Manufacturer: Fenix Model: ARB-L18-3400U V3.0 Battery type: protected 18650 lithium-ion battery Capacity: 3400 mAh Nominal voltage: 3.6 V Charging port: USB-C Charging current via USB-C: 1.5 A Charging current in a separate charger: 700 mA recommended, 3.3 A maximum Charging indicator: red while charging, blue when fully charged Length: 70 mm Diameter: 18.75 mm Weight: 55 g Included 1 × Fenix ARB-L18-3400U V3.0 battery Frequently asked questions How does the 3400U V3.0 differ from the previous 3400U battery? Both have a nominal capacity of 3400 mAh. The V3.0 has a USB-C charging port, while the previous ARB-L18-3400U model has a Micro-USB port. Can the V3.0 battery be charged in a separate charger? Yes. Choose a lithium-ion battery charger that supports a 70 mm long protected 18650 battery. The charging current recommended by Fenix for a separate charger is 700 mA. Does a USB-C cable need to be selected separately? Yes. To charge the battery, choose a suitable USB-C charging cable and USB power source. When is the Fenix ARB-L18-3400U V3.0 the right choice? The V3.0 is suitable if you use a compatible 18650 light and want to charge a spare battery via USB-C. If you prefer to continue using your existing Micro-USB charging equipment, the previous 3400U offers the same nominal capacity. Our recommendation Before ordering, check whether the light's battery compartment can accommodate a 70 × 18.75 mm protected battery. The 18650 designation indicates the battery size class. The protection circuit and charging port affect the actual external dimensions, which is particularly important for lights with a narrower battery compartment. If you are replacing a previous 3400U battery, check both the model designation and the shape of the charging port. If you use one USB power source for both your phone and your light's spare battery, try charging the battery with the cable you intend to take along before your trip. For longer evening use, fully charge the spare battery before setting off and keep it in a battery case. This way, you can replace the battery immediately if needed and recharge the depleted battery later. 3400 mAh 18650 battery for USB-C charging The Fenix ARB-L18-3400U V3.0 combines a 3400 mAh capacity with charging directly through the battery. Choose product code FX-ARB-L18-3400U-V3.0 if you specifically need the USB-C version.
