ARB-L18-3500U Built-in USB Rechargeable Battery

$33.00 $25.95

Out of stock

ARB-L18-3500U is a high capacity 18650 Li-ion USB rechargeable battery with a built-in micro-USB charging port. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. These USB rechargeable batteries can quickly be charged without the need for a separate charger. This not only saves you money from purchasing a charger, but also provides the convenience of not having to carry around another device. This will work in all of the current models that utilize a li-ion 18650 battery. A micro-USB charging cord is NOT included.

Click here to see other models that utilize 18650 batteries.

SKU: ARB-L18-3500UN/ABarcode: 6942870304724N/A

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More Information

Specifications of the ARB-L18-3500U Built-in USB Rechargeable Battery

  • Micro-USB charging port
  • 3500mAh high capacity
  • USB rechargeable batteries
  • 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: 0.8A
  • Weight: 1.8 ounces (50.2g)
  • Size: Length: 2.8″ (70mm) Diameter: 0.7″ (18.6mm)
  • Warranty Period: 12 month from date of purchase
  • Indicator light on battery is red while charging, blue when charged

Customer Reviews

Based on 341 reviews
Blanca Bonitas

Fast Shipping!!! Matters

Rick A
Best Battery For The Slimmer Lights

My favorite battery is the 5000 mAh 21700 which I use in all my higher capacity flashlights. But this 18650 is great for my slimmer profile lights. I have about 15 flashlights. Most of these I bought from Fenix Lighting. Yeah, I should start going to meetings for flashlight freaks. Lol. BTW, Fenix Lighting has been a great company to work with. Excellent products and customer service. And no, I’m not being compensated for writing this review.

John Goodale

My family owns at least 8 Fenix lighting products. Best lighting equipment on the market in my opinion.

Thanks Fenix staff

Tommy Richie
great product

bought for TK 16, already have the cable and the block to charge my phone for the 2600u that is already used. since able upgrade, hope it works out well time will tell.

David Viero
Awesome battery!

I bought this to drop into my PD 32 V2. It works great, charge’s easily. Lasts forever practically. Would buy these type of batteries any-day to replace a un rechargeable or less performing battery.

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ARB-L18-3500U Built-in USB Rechargeable Battery

$33.00 $25.95