---
product_id: 745534835
title: "Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps"
brand: "nitecore"
price: "S$240"
currency: SGD
in_stock: true
reviews_count: 5
category: "Nitecore"
url: https://www.desertcart.sg/products/745534835-nitecore-carbon-battery-6k-kit-headlamp-runtime-extender-for-nu40
store_origin: SG
region: Singapore
---

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

**Brand:** nitecore
**Price:** S$240
**Availability:** ✅ In Stock

## Summary

> 🔦 Power Up Your Night with Nitecore Carbon 6K – Light Longer, Run Stronger!

## 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?** S$240 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/745534835-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

- • **Featherlight Comfort:** Just over 3 ounces for balanced, all-day wear without fatigue.
- • **Ready Out of the Box:** Includes battery, headband, bracket, USB-C cable, and exclusive Nitecore sticker.
- • **Safety First, Always:** Integrated rear red safety light keeps you visible during night runs or work.
- • **Seamless Power Connection:** Quick-release cable and clip ensure a secure, tangle-free setup.
- • **Triple Your Adventure Time:** Doubles or triples headlamp runtime for unstoppable illumination.

## Overview

The Nitecore Carbon Battery 6K Kit is a lightweight, high-capacity runtime extender designed for select Nitecore headlamps (NU40, NU43, NU45, NU50, HC65 UHE). It significantly boosts runtime by drawing power first from the external battery, features a secure quick-release connection, USB-C charging, and includes a rear red safety light for enhanced nighttime visibility.

## 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: I think I've just come to enjoy this brand for the function, value and overall aesthetic of the system. Here is a headlamp system (battery + headband) which I gladly purchased (twice now) to outfit two, HC65 UHE headlamps I bought earlier. One headlamp is my back-up... as some of us search-and-rescue folks tend to like reliable gear (in pairs). I don't have a longevity review yet... But I will add that extra bit of information as more time passes and I've used the system under a variety of situations. I can say though, after at least 2-months of regular use (both short and extended) that I like it. The standard set up for the HC65 UHE is great. No complaints. Battery life is wonderful (providing bright, adjustable light and reliability). But just knowing that I'm drawing from the extra battery on the backside of this kit (FIRST) gives me great piece-of-mind when I'm out at night and need to illuminate an area hands-free... while on extended walks or runs. Having a fresh, primary battery inside the light itself just feels right. I've used this extra battery system in rainy, chilly autumn downpours and I'm still grinning ear-to-ear at the value this system provides me (and my dog) as we're out and about in unlit (and occasionally sketchy) areas. The connectors are solid. I've not had any issues with them coming loose at all, whether I've tossed this system in a tightly-compressed dry bag or a loose bag with other items bouncing around with it. The simple headband adjustability, forehead slipstrip and general headband aesthetic remain (as it should). The battery itself is very long lasting (more info to come there with longevity testing). I do love the red charging indicator (4 leds) that give you feedback on the staus of your charge. This doubles as a rear, blinking, caution light (or guide light if you're in a group)... Or you can opt out of that feature entirely and turn that part off. Nice. Nitecore, have you done it again? At least for THIS guy you have. Yes, you have. Thank you!
Review: I was going to get a HC75 3000lm, but after using this, my HC60 1600lm operates completely different now. Excellent quality, comfortable, pretty lightweight, it operates of the battery first when plugged into the headlamp and is charging the headlamp battery. Completely different light management, so bright , I'm in no hurry for the other one with adjustable flood and spot, nice carbon battery design and charges on a C cable.

## 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 |
| Item model number | Carbon Battery 6K |
| Manufacturer | Sysmax Innovations Co. |
| Product Dimensions | 2.29 x 8.99 x 2.29 cm; 99.79 g |

## Product Details

- **Colour:** Black
- **Light source type:** LED
- **Material:** Carbon Fiber
- **Power source:** Battery Powered
- **Special features:** Adjustable Strap, Lightweight

## 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/414HtYPm5yL.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/41B9-IfRSqL.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/41ETewotoIL.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/41EyjiyqKZL.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/41Q-b6zUNPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by 3***2 on 6 December 2025*

I think I've just come to enjoy this brand for the function, value and overall aesthetic of the system. Here is a headlamp system (battery + headband) which I gladly purchased (twice now) to outfit two, HC65 UHE headlamps I bought earlier. One headlamp is my back-up... as some of us search-and-rescue folks tend to like reliable gear (in pairs). I don't have a longevity review yet... But I will add that extra bit of information as more time passes and I've used the system under a variety of situations. I can say though, after at least 2-months of regular use (both short and extended) that I like it. The standard set up for the HC65 UHE is great. No complaints. Battery life is wonderful (providing bright, adjustable light and reliability). But just knowing that I'm drawing from the extra battery on the backside of this kit (FIRST) gives me great piece-of-mind when I'm out at night and need to illuminate an area hands-free... while on extended walks or runs. Having a fresh, primary battery inside the light itself just feels right. I've used this extra battery system in rainy, chilly autumn downpours and I'm still grinning ear-to-ear at the value this system provides me (and my dog) as we're out and about in unlit (and occasionally sketchy) areas. The connectors are solid. I've not had any issues with them coming loose at all, whether I've tossed this system in a tightly-compressed dry bag or a loose bag with other items bouncing around with it. The simple headband adjustability, forehead slipstrip and general headband aesthetic remain (as it should). The battery itself is very long lasting (more info to come there with longevity testing). I do love the red charging indicator (4 leds) that give you feedback on the staus of your charge. This doubles as a rear, blinking, caution light (or guide light if you're in a group)... Or you can opt out of that feature entirely and turn that part off. Nice. Nitecore, have you done it again? At least for THIS guy you have. Yes, you have. Thank you!

### ⭐⭐⭐⭐⭐ Review
*by T***J on 9 August 2025*

I was going to get a HC75 3000lm, but after using this, my HC60 1600lm operates completely different now. Excellent quality, comfortable, pretty lightweight, it operates of the battery first when plugged into the headlamp and is charging the headlamp battery. Completely different light management, so bright , I'm in no hurry for the other one with adjustable flood and spot, nice carbon battery design and charges on a C cable.

### ⭐⭐⭐⭐ Review
*by B***N on 2 November 2025*

Works very well and as advertised. Battery life increases to a ridiculous amount of time which is exactly what I needed for camping and backpacking. Running at a faster pace makes it bounce a little more than I would like, but it’s still worth the buy

## Frequently Bought Together

- Nitecore Carbon Battery 6K Kit Headlamp Runtime Extender for NU40, NU43, NU45, NU50, and HC65 UHE Headlamps
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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-07*