Fenix Flashlights | World Leader in Fenix® Sales | Fenix Lighting USA

Fenix ARB-L18-3500 Rechargeable 18650 Battery

Fenix ARB-L18-3500 Rechargeable 18650 Battery - Main image
$13.61 $21.95 In stock

Category: Accessories

The Fenix ARB-L18-3500 is a high capacity 18650 Li-ion rechargeable with a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.

Click here to see other models of 18650 batteries.

Specifications of the ARB-L18-3500 Rechargeable 18650 Battery

  • ARB-L18-3500 Rechargeable Battery
  • 3500mAh 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
  • Weight: 1.8 ounces (50g)
  • Size: Length: 2.7″ (69mm) Diameter: 0.7″ (18.6mm)
  • Warranty Period: 12 month from date of purchase
  • Compatible with all lights using an 18650 battery.
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Miles ★★★★★

The protection circuit in the anode gives me real peace of mind when I’m tossing this into a bag with keys or loose change. It holds a solid charge for my weekend hikes, and the capacity has been more than enough for long nights out.

Ryan H. ★★★★★

Been using this 18650 in my daily flashlight for a few weeks now and the 3500mAh capacity easily gets me through a week of evening walks. The anode protection circuit gives me peace of mind when charging overnight, haven't had any heat issues at all.

Natalie ★★★★★

The protection circuit in the anode gives me peace of mind when I leave it charging overnight, and it’s held its capacity perfectly through dozens of cycles. I’ve swapped it into my bike light and the runtime is noticeably longer than my old cell.