Why We Love It
Running out of charge mid-session is the last thing you want when you're relying on a headlamp to see the trail ahead. The Fenix ARB-LP1900 clips in exactly like the battery your headlamp shipped with and recharges over USB-C. Worth keeping one in your kit bag for long nights out or back-to-back race mornings.
Talk Nerdy To Me
The ARB-LP1900 is a 3.8V battery pack rated at 1900mAh, the same capacity Fenix ships as standard in the HL18R-T V2.0, HL32R-T and HL45R, so output and runtime match what you're used to rather than being a cut-down third-party cell. It recharges over USB-C and carries built-in overheating and overcharging protection, which matters more on a spare battery that might sit in a drop bag or glovebox between uses rather than getting cycled every week. Because it's a genuine manufacturer replacement rather than a generic cell, it drops straight into the housing without any fiddling with contacts or polarity.
Fast Facts
- 1900mAh capacity, 3.8V output
- USB-C rechargeable
- Built-in overheating & overcharging protection
- Compatible with Fenix HL18R-T V2.0, HL32R-T & HL45R headlamps
- Genuine Fenix battery, not a third-party cell
- Handy as a charged spare for long runs or multi-day races
🇦🇺 Australia
- FREE shipping on orders $129+ AUD (after discount codes are applied)
- Orders under $129: Shipping calculated at checkout
🇳🇿 New Zealand
- FREE shipping on orders $150+ NZD (after discount codes are applied)
- Orders under $150: Shipping calculated at checkout
- Customers are responsible for covering customs charges
🌍 International
- Shipping calculated at checkout
- Customers are responsible for covering customs charges
⚡ Express Shipping
- Available for all destinations
- Calculated at checkout
- Customers are responsible for covering customs charges for international orders
Same Day Dispatch: Orders placed before 12 PM (AEST/AEDT, Melbourne AU time) on weekdays are usually dispatched same day*. Orders placed after this cutoff will head out the next business day.*This is a guideline, not a guarantee. While we do our best to ship orders out on time, dispatch may be delayed during peak periods, sales events, or due to unexpected courier or warehouse issues.
Delivery Times - Australia: Standard shipping takes 3-9 business days. Need it faster? Choose Express at checkout.
Please Note: Delivery times may vary due to public holidays and other factors beyond our control. Check current shipping estimates here.
30-Day Policy
Easy returns and exchanges within 30 days of delivery (excluding items listed below).
Tech Item Exception:
Watches, FORM goggles, headphones, heart rate monitors, recovery boots and similar tech items can only be returned if they are in their original packaging with the seal intact (unopened and unconnected). Unless faulty or covered by warranty.
Personal Care / Hygiene Items:
For hygiene and safety reasons, change of mind returns and exchanges are not accepted for personal care/hygiene items, including socks, underwear and swimwear (even if they are not marked as Final Sale). Unless faulty or covered by warranty.
Final Sale Items
Items marked as FINAL SALE cannot be returned or exchanged unless faulty or covered by warranty.
Gift Purchases
Buying a gift? Contact us at purchase to request an extended return period.
Need Help?
Full return policy details and process here.
Request a return here.
Same day dispatch before 12pm AEDT/AEST*
Aussie owned and operated
Athlete support & in-house dietitian
Free Shipping for orders over A$129*