Head-to-head · Best Rechargeable Headlamps

Nitecore NU25 UL vs Petzl Actik Core

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

Petzl Actik Core comes out ahead by a narrow margin (4.3 vs 4.6). The gap is mostly about multi-day hikers and trail runners who need a versatile, USB-C-rechargeable headlamp with AAA fallback for backcountry trips — read the strengths below before deciding.

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 →

Higher ratedRanked #1 in Best Rechargeable Headlamps

Petzl Actik Core

4.6

$95as of May 19

The Actik Core is the do-everything headlamp that wins on flexibility. The hybrid battery system — CORE rechargeable pack or three AAAs — is genuinely useful on multi-day trips when you can't recharge but can swap batteries. At 625 lumens with a real 115 m beam, it's bright enough for technical work and trail running. CleverHiker, GearJunkie, and most outdoor publications keep this in their top picks year after year for exactly this reason: it's not the brightest, lightest, or cheapest, but it's the most versatile.

Strengths

— Hybrid battery — runs on the included CORE rechargeable pack OR three standard AAAs
— 625 lumens with a 115-meter beam throw is plenty for trail running or technical hiking
— USB-C charging in the current generation (older units shipped micro-USB)

Watch-outs

— Two hours of runtime at 625 lumens — high-mode time is short
— Strap is comfortable but less plush than the BioLite HeadLamp 425's wide-band design
— No IP67 rating like the Black Diamond Spot 400-R (Petzl rates it IPX4)

$95 · Check Price on Amazon Full review →

How they stack up

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.

Petzl Actik Core

Most versatile of the picks here thanks to the hybrid CORE/AAA battery option — neither the BioLite HeadLamp 425, Black Diamond Spot 400-R, Fenix HM55R, nor Nitecore NU25 UL accept AAA fallback batteries. Less bright than the Fenix HM55R (625 lm vs 1200 lm) but more practical for typical hikes. Heavier than the Nitecore NU25 UL.

Specs side-by-side

Spec	Nitecore NU25 UL	Petzl Actik Core
Max Output	400 lumens	625 lumens
Beam Distance	64 m	115 m
Runtime (High)	2 hr 45 min @ 400 lm	2 hours @ 625 lm
Runtime (Low)	45 hours @ ultralow	100 hours @ 7 lm
Battery	650 mAh Li-ion (integrated)	CORE rechargeable + AAA fallback
Charging	USB-C	USB-C
Waterproofing	IP66	IPX4
Weight	45 g (1.59 oz)	75 g

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