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Fenix ARB-L16-700UP Built-in USB Rechargeable Battery

$10.50 $7.95

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The Fenix ARB-L16-700UP 16340 lithium-ion battery is specifically designed for high current, high drain devices and makes a great accessory add for all current Fenix 16340 (RCR123) powered lights. The simple explanation of the benefits of this battery used in Fenix high drain devices is that they will last longer at their highest performing levels by sustaining a higher voltage. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. This battery can quickly be charged without the need for a separate charger via it’s USB port. This not only saves you money from purchasing a charger, but also convenience of not having to carry around another device. It is designed to work with: PD25, LD15R, E18R, E18R V2.0, E16, E15 and HM50R. A micro-USB charging cord is NOT included.

SKU: ARB-L16-700UPN/ABarcode: 6942870305905N/A

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Specifications of the ARB-L16-700UP Built-in USB Rechargeable Battery

  • Size: 16340 Button Top Battery
  • 700mAh Nominal Capacity
  • 3.6V Nominal Voltage
  • Max discharging current: 2.5A
  • Charging current by USB port: 0.3A
  • Charging current by separate charger: 700mA
  • Heavy Load Discharge: 3.5C high rate discharge; 2.5A stable output
  • Protection Circuit in the Anode to prevent short circuit
  • Multiple layers of protection
  • 500 charge cycles can be expected from a properly maintained battery
  • Fully covered with a steel shell for impact resistance
  • Over charge, discharge, short circuit, and over heating protection
  • Three sets of over-head protection:  Pressure relief valve protection, separate microporous protection, and PTC cathodal block protection
  • Weight: 0.66 ounces (18.8g)
  • Size: Length: 1.4″ (35.5mm) Diameter: 0.7″ (16.8mm)
  • 12 months free warranty from date of purchase
  • Indicator light on battery is red while charging, blue when charged

Customer Reviews

Based on 87 reviews
Ed Hewson
Great product

Love this battery. Ease of charging and more bang for the buck.


Easy to recharge and works great

darin lee
Best thing you can do for your Fenix light!

impressed...love the fact that I can put the battery alone on the charger while still carrying and using the flashlight

David Pryor
Great power source

I’ve had several of these batteries for several years. I have low vision, so always keep s as couple of lights and extra batteries around. Probably a little over-prepared! These little batteries power my Fenix light a long time, recharge easily, and seem to have kept their capacity after multiple years of use. Highly recommend.

Jeff Clark
great product

Fenix battery is excellent as is the Fenix headlight it goes in. Both are the best.

Rich Brownley
New battery

Technician was very helpful and quick

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