--- product_id: 722038511 title: "Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps" brand: "nitecore" price: "28923 kr" currency: ISK in_stock: true reviews_count: 5 category: "Nitecore" url: https://www.desertcart.is/products/722038511-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40-nu43 store_origin: IS region: Iceland --- # Up to 3x runtime boost Lightweight 3oz carbon fiber Rear red safety signal light Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps **Brand:** nitecore **Price:** 28923 kr **Availability:** ✅ In Stock ## Summary > 🔦 Power through the night with unstoppable runtime and sleek carbon style! ## Quick Answers - **What is this?** Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps by nitecore - **How much does it cost?** 28923 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/722038511-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40-nu43) ## Best For - nitecore enthusiasts ## Why This Product - Trusted nitecore brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless USB-C Charging:** Fast, reliable charging with a quick-release cable for hassle-free power-ups. - • **Tailored Fit & Tidy Setup:** Adjustable strap and cable clips ensure a secure, clutter-free headlamp experience. - • **Featherlight Carbon Design:** Just over 3 ounces for balanced, all-day comfort on your head. - • **Triple Your Adventure Time:** Doubles or triples runtime for extended outdoor sessions without battery anxiety. - • **Safety First, Always Visible:** Integrated rear red light keeps you seen during night runs or work shifts. ## Overview The Nitecore Carbon Battery 6K Kit is a premium carbon fiber runtime extender designed for select Nitecore headlamps (NU40, NU43, NU45, NU50, HC65 UHE). It significantly boosts battery life by up to three times, weighs just over three ounces for balanced comfort, and features a USB-C quick-charge port plus a rear red safety light. Perfect for professionals and outdoor enthusiasts who demand long-lasting, reliable illumination with a modern, lightweight design. ## Description The Nitecore Carbon Battery 6K runtime extender Kit can double or triple the runtime of Nitecore headlamps such as the NU40, NU43, NU45, NU50, and HC65 UHE. By connecting directly to the headlamp, the Carbon 6K Battery Kit activates the headlamps' Performance Mode, ensuring long-lasting illumination and stronger brightness. It first draws power from the battery kit, maximizing its runtime before utilizing the headlamp's internal battery. Weighing just over three ounces, its well-balanced design offers optimal weight distribution for a comfortable and secure wearing experience.The Carbon Battery 6K Kit features a USB-C port for easy connection and charging, along with a quick-release clip that ensures a secure connection between the charging port, headlamp, and battery, guaranteeing reliable charging. To check the remaining power, simply short-press the Power Button to illuminate the three red power indicators. Additionally, for added safety, the kit includes a rear red light that serves as a signal light at night. Review: A most-worthy upgrade Review: Absolutely amazing, completely changed my Nitecore HC60. Absolutely amazing ## Features - DOUBLES OR TRIPLES RUNTIME - When connected to the headlamp, the Nitecore Carbon 6K Kit significantly extends the run time of Nitecore Headlamps such as NU40, NU43, NU45, NU50, and HC65 HUE. - SECURE CONNECTION - Comes with a quick-release cable, reliably connecting the kit and headlamp, and clips to tuck the cable neatly around the headband. - LIGHTWEIGHT - Weighing just over three ounces, carbon 6K fits easily on the back of the headband for a balanced weight distribution and comfortable wearing experience - RED SAFETY LIGHT - A rear red light serves as a signal light at night, perfect for night runners or outdoor workers - CONTENTS - Carbon Battery 6K, Headband, Bracket, USB-C to USB-C charging cable, Nitecore Sticker ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D1HDS2K8 | | Are Batteries Included | Yes | | Battery Description | Lithium-Ion | | Battery Type | Lithium Ion | | Brand | Nitecore | | Colour | Black | | Country of Origin | USA | | Customer Reviews | 4.2 out of 5 stars 41 Reviews | | Enclosure Material | Carbon Fiber | | Finish Types | Polished | | Included Components | Battery, Charging Cable, Clip, Head Band | | Item Dimensions D x W x H | 2.3D x 9W x 2.3H Centimeters | | Item Dimensions L x W x H | 9L x 2.3W x 2.3H Centimeters | | Item Type Name | headlamp runtime extender | | Item Weight | 0.22 Pounds | | Light Source Special Features | Doubling or tripling the runtime, rear red light for safety, USB-C port for easy connection and charging | | Light Source Type | LED | | Lumens | 2000 Lumen | | Manufacturer | Sysmax Innovations Co. | | Material | Carbon Fiber | | Model number | Carbon Battery 6K | | Mounting Type | Head Mount | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Number of Lights | 1 | | Power Source | Battery Powered | | Product Features | Adjustable Strap, Lightweight | | Recommended Uses For Product | Extending the runtime of compatible Nitecore headlamps | | Shape | Rectangular | | Special Feature | Adjustable Strap , Lightweight | | Style | Modern | | Unit Count | 1.0 Count | | Water Resistance Level | Water Resistant | | White Brightness | 2000 Lumens | ## Product Details - **Colour:** Black - **Light Source Type:** LED - **Material:** Carbon Fiber - **Power Source:** Battery Powered - **Special Feature:** Adjustable Strap, Lightweight ## Images ![Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Image 1](https://m.media-amazon.com/images/I/71L3BJXg05L.jpg) ![Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Image 2](https://m.media-amazon.com/images/I/61zZ0l-sCtL.jpg) ![Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Image 3](https://m.media-amazon.com/images/I/71DF+XOyxwL.jpg) ![Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Image 4](https://m.media-amazon.com/images/I/61HOzJr2ROL.jpg) ![Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Image 5](https://m.media-amazon.com/images/I/61Ef74lNMEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A most-worthy upgrade *by 3***2 on 6 December 2025* ### ⭐⭐⭐⭐⭐ Absolutely amazing, completely changed my Nitecore HC60. Absolutely amazing *by T***J on 9 August 2025* ### ⭐⭐⭐⭐ Crazy long battery life *by B***N on 2 November 2025* ## Frequently Bought Together - Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps - Nitecore NU53 1800 Lumen Headlamp, USB-C Fast Charging Long Runtime Lightweight Designed for Industrial uses with Auxilary White and Red Light Sticker - Nitecore NU43 Rechargeable Headlamp, 1400 lumens USB-C Bright Lightweight for Camping, Running, or Working, with Spotlight, Floodlight, Red Light, Including NitecoreS Sticker --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/722038511-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40-nu43](https://www.desertcart.is/products/722038511-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40-nu43) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-04-24*