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Fenix ARB-L14U 14500 1600mAh 1.5V Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port - Clam Shell

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Fenix Micro-USB Rechargeable 14500 1600 mAh Li-Ion Battery

No Need For Bulky Chargers!

Part of Fenix's innovative new line of rechargeable batteries, the ARB-L14-1600U 14500 Battery is a potent combo of power and convenience. The powerful Lithium Ion battery delivers 1.5 Volts of power and can hold a considerable charge of 1600 mAh, more than twice the capacity of a typical 14500! Even more beneficial is the cell's unique micro-USB charging port, allowing the battery to be recharged using one of the most common power cords used today rather than a bulky, expensive battery charger. The charging progress of the battery can even be monitored thanks to the multicolored LED power indicator located on the top of the battery. Potent in its power and user-friendly in its design, the Fenix ARB-L14-1600U is the perfect cell for nay rechargeable battery user.

NOTE: Do NOT attempt to recharge this battery in a conventional battery charger. Attempting to use any other charging method other than the micro-USB charging will result in damage to both the battery and the charger and possibly result in personal injury or property damage.


  • Micro-USB charging port allows battery to be charged without the use of a conventional charger (Micro-USB Cable NOT Included)
  • Advanced protection circuit built into the anode to prevent overcharging, over-discharging, and short circuiting
  • Three different sets of overheat protection
    • Pressure Relief Valve Protection
    • Separate Micro-Porous Protection
    • PTC Cathodal Block Protection
  • Multicolored LED power indicator glows red while battery is charging, green when charging is complete


  • Battery Size: 14500
  • Battery Chemistry: Lithium Ion (Li-Ion)
  • Nominal Voltage: 1.5V
  • Nominal Capacity: 1600 mAh
  • Charging Input: Micro-USB 5V / 1.0A
  • Estimated Charge Cycles: 500 cycles
  • Dimensions:
    • Length - 1.97" (50 mm)
    • Diameter - 0.57" (14.5 mm)
  • Weight: 0.67 oz. (19 g)
Battery Size:14500
Battery Capacity (mAh):1600
Battery Chemistry:Li-Ion
Battery Voltage:1.5
Battery Terminal Type:Button Top
Battery Shelf Life:10 Years
Product Certifications:CE, FCC, RoHS
Packaging:Retail Packaging
Warranty:Battery Junction 30-Day Warranty, Fenix 1 Year Warranty
Return Policy:Battery Junction Return Policy
Product Weight:0.67oz
Product Dimensions:1.969" (L) x 0.571" (Diameter)
Country of Origin:China
Associated Battery Sizes:14500, AA, Lithium-Ion AA
By Richard
Muncie, IN
Twice the capacity
September 27, 2022
I bought this for my JetBeam PA12. The capacity is impressive compared to other 14500ís and it runs it brighter than a standard AA.
By michael
June 24, 2022
Long lasting battery from a trusted company. Added bonus of having the ability to charge the battery without a charger.
By Melvin
abq nm
great battery
February 25, 2021
holds charge well
very easy to recharge use cellphone cable excellent
By Jon
Costa Mesa, CA
Replace alkalines for LED
November 28, 2020
I have a LED "firefly" light that runs on one AA. An Enloop at full charge is below the threashold. An alkaline was giving me 10 or 11 eleven nights (it has a light sensor) in June. These would give me 5 nights. With a longer nights it is between 3 and 4 nights. They charge easily and 5 months of use have certianly paid for themselfs.
By Emmett
Johnstown, PA
Buggy in Zebralight H52
September 28, 2020
I use a AA/14500 headlamp frequently and had hoped to combine higher mAh with Li cold weather tolerance. However, this battery won't power the light on high. 30 seconds after power on at high, the light blinks and every 10 or so seconds therafter. It works on lower levels but I need the high level. I had thought the high level would just be less bright a la using an alkaline, but probably something with the light circuitry and the battery circuitry aren't playing nice at high draw.

I will try this in the outdoor thermometer sensor this winter and hopefully be able to stop buying Li primaries for that device.
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Fenix ARB-L14U 14500 1600mAh 1.5V Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port - Clam Shell

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