---
product_id: 722038511
title: "Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps"
brand: "nitecore"
price: "€ 148.88"
currency: EUR
in_stock: false
reviews_count: 5
category: "Nitecore"
url: https://www.desertcart.pt/products/722038511-nitecore-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40
store_origin: PT
region: Portugal
---

# USB-C fast charging 3x runtime boost Carbon fiber durability Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps

**Brand:** nitecore
**Price:** € 148.88
**Availability:** ❌ Out of Stock

## Summary

> 🔦 Power up your night with unstoppable runtime!

## Quick Answers

- **What is this?** Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps by nitecore
- **How much does it cost?** € 148.88 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/722038511-nitecore-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40)

## 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

- • **Safety in Sight:** Rear red safety light ensures you're visible during night runs or work shifts.
- • **Plug & Play Power:** USB-C charging for fast, hassle-free recharges wherever your journey takes you.
- • **Featherlight Power:** Weighs just over 3 ounces for balanced, all-day comfort on your head.
- • **Seamless Secure Connection:** Quick-release cable and clip keep your setup tidy and reliable on the move.
- • **Triple Your Adventure Time:** Doubles or triples runtime for extended outdoor sessions without battery anxiety.

## Overview

The Nitecore Carbon Battery 6K Kit is a lightweight, carbon fiber runtime extender designed for select Nitecore headlamps. It doubles or triples battery life, features a secure quick-release connection, includes a rear red safety light, and supports fast USB-C charging—perfect for professionals and outdoor enthusiasts who demand reliable, long-lasting illumination.

## 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 |
| Customer Reviews | 4.2 out of 5 stars 40 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 | 100 g |
| 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

- **Special Feature:** Adjustable Strap, Lightweight
- **Colour:** Black
- **Power Source:** Battery Powered
- **Light Source Type:** LED
- **Material:** Carbon Fiber

## Images

![Nitecore 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/51DYUaL3wpL.jpg)
![Nitecore 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/51YM0r617AL.jpg)
![Nitecore 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/51Yx0hPkzvL.jpg)
![Nitecore 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/61Ef74lNMEL.jpg)
![Nitecore 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/61HOzJr2ROL.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
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- Nitecore NU43 Rechargeable Headlamp, 1400 lumens USB-C Bright Lightweight for Camping, Running, or Working, with Spotlight, Floodlight, Red Light, Including NitecoreS Sticker

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**Shop now:** [https://www.desertcart.pt/products/722038511-nitecore-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40](https://www.desertcart.pt/products/722038511-nitecore-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-01*