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ARB-L18-3400U Built-in USB Rechargeable Battery

$31.00 $20.95

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The ARB-L18-3400U is a high-capacity 18650 Li-ion USB rechargeable battery with a protection circuit in the anode to help prevent short circuits, overcharge/discharge, and overheating. This battery has its own micro-USB charging port for quick/easy charging without the need for a separate charger. The battery also includes pressure relief vents that expel waste gas in the rare case of an internal short circuit preventing an explosion.

A micro-USB charging cord is NOT included.

Click here to see other models that utilize 18650 batteries.

SKU: ARB-L18-3400UN/ABarcode: 6942870308265N/A

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More Information

Specifications of the ARB-L18-3400U Built-in USB Rechargeable Battery

  • Micro-USB charging port
  • 3450mAh high capacity
  • Protection circuitry to prevent short circuits
  • Pressure vents to prevent explosions
  • 500 charge cycles
  • Voltage: 3.6V
  • Charging Current: Recommended 1A, maximum 2A
  • Charging Current USB Port: 1A
  • Weight: 1.76 ounces (50g)
  • Size: Length: 2.76″ (70mm) Diameter: 0.73″ (18.6mm)
  • Warranty Period: 12 months from date of purchase
  • Indicator light on battery is red while charging, blue when charged

Customer Reviews

Based on 5 reviews
Love this battery

A great battery for my headlamp that easily charges without specialty cables. I plan to buy another!

Randy Sanchez

I’m having trouble with my light . At first technician said it might be a battery & charger issue. So I ordered both . Still doesn’t work. Told me to send in for repairs to a different company. If Fenix doesn’t do repairs? Then why are they advising on what I need to do to fix??

Hi Randy - I see your orders for lights and the batteries, but our warranty team doesn't have anything as far as communication with you. Do you recall who you spoke to about that? Do you know if it was Fenix Lighting or Fenix-Store? Feel free to forward that communication to me at support@fenixlighting.com and I will see what I can do to help.

Warranty service is done through the distributor on your light, due to our contracts with the factory. So for example, if you purchased a light from us, but contacted Fenix Store about warranty on it, they will refer you back to us as the appropriate service center, and vice versa. The 11-digit alphanumeric serial number on the light will tell us which service center to work through. But again, our warranty doesn't have anything from you, so I'm wondering if you had talked with someone at a different company. Please forward to me your communications so I can make sure you are talking to the correct people.

David Palmer
Excellent Backup Battery

I use this. Battery in most of my lights and keep an extra as a charged backup. The charge indicators and charging method allow the light to always be ready for use.

elmer fudd
HM65R backup battery

nice having a charged up backup battery when the other gets low

Matthew Elick

Works perfectly and love the USB option

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