Head-to-head · Best Rechargeable Headlamps

Fenix HM55R Renegade vs Nitecore NU25 UL

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Fenix HM55R Renegade comes out ahead by a clear margin (4.7 vs 4.3). The gap is mostly about users who want the brightest, most weatherproof rechargeable headlamp regardless of weight or battery format — read the strengths below before deciding.

Higher ratedRanked #2 in Best Rechargeable Headlamps

Fenix HM55R Renegade

4.7

$90as of May 19

The HM55R Renegade is the brightest headlamp in this round-up — 1200 lumens combined output, an IP68 rating, and a serious 141-hour low runtime. GearJunkie named it the best headlamp of 2026, edging out the BioLite Range 500. The trade-offs are real but predictable: the brightest mode burns down the battery fast, and you're committed to Fenix's proprietary 18350 cell. For anyone who wants the headlamp equivalent of a high-output flashlight strapped to their head, this is it.

Strengths

— 1200 lumens spotlight + 350 lumens floodlight in one unit — brightest pick in this round-up
— IP68 waterproof and dustproof — fully submersible
— Up to 141 hours of runtime on low — multi-day capable without recharging

Watch-outs

— Bright modes drop battery fast — 1200 lumens is sub-hour runtime
— Heavier than the Nitecore NU25 UL and Petzl Actik Core at 87 g (with battery)
— Twist-on/off battery cap is fiddler than slide-out designs

$90 · Check Price on Amazon Full review →

Ranked #5 in Best Rechargeable Headlamps

Nitecore NU25 UL

4.3

$70as of May 19

The NU25 UL is the ultralight pick. At 1.59 oz including battery, it's the lightest serious headlamp here by a significant margin, and 400 lumens with USB-C rechargeable is more than acceptable for typical backpacking use. The trade-offs are predictable for an ultralight: lower IP rating, smaller battery, and a thinner strap. For thru-hikers and weight-counting backpackers, this is the canonical headlamp pick — and at $45, it leaves room in the budget.

Strengths

— Just 1.59 oz (45 g) — lightest headlamp in this round-up
— 400 lumens max output is competitive with the Black Diamond Spot 400-R despite the weight savings
— USB-C rechargeable with up to 45 hours of runtime in ultralow mode

Watch-outs

— IP66 splash-resistant only — less robust than the Black Diamond Spot 400-R or Fenix HM55R
— Smaller battery means shorter runtime at high output (2 hr 45 min @ 400 lm)
— Tighter elastic strap may be uncomfortable for users with larger heads

$70 · Check Price on Amazon Full review →

How they stack up

Fenix HM55R Renegade

Brightest pick here — 1200 lm vs the Petzl Actik Core's 625 lm and the Black Diamond Spot 400-R's 400 lm. IP68 rating is also the highest in this lineup (Black Diamond Spot 400-R is IP67, BioLite HeadLamp 425 is IPX4). Loses to the Petzl Actik Core on battery flexibility and to the Nitecore NU25 UL on weight.

Nitecore NU25 UL

Lightest pick by a wide margin — 1.59 oz vs the Petzl Actik Core's 2.65 oz and the Fenix HM55R's 3.07 oz. Tied with the BioLite HeadLamp 425 on lumen output (400-425 lm) but in a much smaller package. Loses to the Fenix HM55R and Black Diamond Spot 400-R on waterproofing and to the BioLite HeadLamp 425 on comfort.

Specs side-by-side

Spec	Fenix HM55R Renegade	Nitecore NU25 UL
Max Output	1200 lumens (spot) + 350 (flood) + 5 (red)	400 lumens
Beam Distance	175 m	64 m
Battery	18350 1600mAh Li-ion (replaceable)	650 mAh Li-ion (integrated)
Charging	USB-C	USB-C
Waterproofing	IP68	IP66
Weight	87 g (with battery)	45 g (1.59 oz)
Runtime (Low)	120 hours	45 hours @ ultralow
Runtime (High)	6 hr 30 min @ 350 lm	2 hr 45 min @ 400 lm

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