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Fenix ARB-LP21 Power Extender

Fenix ARB-LP21 Power Extender - Main image
Fenix ARB-LP21 Power ExtenderFenix ARB-LP21 Power ExtenderFenix ARB-LP21 Power ExtenderFenix ARB-LP21 Power ExtenderFenix ARB-LP21 Power Extender
$37.37 $54.95 In stock

Category: batteries chargers

Engineered specifically for the Fenix HM75R Headlamp, this power bank dramatically extends runtime with its integrated 5000mAh 21700 battery. Beyond powering your headlamp, it functions as a standalone charger for your other devices via its USB-C port. Designed for durability and convenience, it features a secure belt clip and a robust IP68 waterproof rating for reliable, all-weather performance.

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

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

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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

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Customer Reviews (5.0 / 5 · 5 reviews)

Hannah M. ★★★★★

I was skeptical about the detachable battery pack, but once I plugged it into my headlamp, the added runtime felt almost endless. The integrated 5000mAh cell charges up surprisingly fast and gives me a solid backup when I'm out on longer night hikes.

Abigail ★★★★★

The 5000mAh cell in this thing is a lifesaver on long night hikes—I ran my headlamp for three full evenings without touching my main charger. It feels solid in the hand, and the fact that it doubles as a standalone power bank means I’m carrying one less brick in my pack.

Chloe B. ★★★★★

The usb-c port made charging this thing a breeze between trail runs, and the 5000mAh cell kept my headlamp going through a full night without dipping once. It's heavy enough that I notice it on the strap, but that's a fair trade for never being left in the dark.

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