A pocket power bank in carbon fibre that also runs your Nitecore headlamp longer.
The standalone 6,000mAh Carbon Battery 6K. The same battery as the Headband Kit, sold on its own for SGD $59, so you can pair it with a headband or headlamp you already own.
- 6,000mAh (21.6Wh) on a 21700 cell, enough for roughly a full phone charge
- USB-C output at 5V/2A (10W) for phones, cameras and other USB-C devices
- Feeds compatible Nitecore headlamps for up to 2x longer runtime
- Rear red safety light so traffic and trail-mates see you in the dark
- Carbon-fibre reinforced shell, 88g, about the weight of a small chocolate bar
- IP68 dust and water sealed, submersible to 2m
- Battery only. No headband and no cable, so the price stays low
A real pocket power bank, not just a spare cell.
The single USB-C port puts out 5V/2A, so the 6,000mAh pack tops up a phone, camera or any USB-C device. That is close to a full charge for most phones from a battery that disappears into a jacket pocket.
Drop it in your bag for a day out and you have a meaningful top-up ready at the car park or the trailhead, with charge to spare for your headlamp at night.
Hours more light, fed straight to your headlamp.
Plug the Carbon Battery 6K into a compatible Nitecore headlamp with a USB-C cable and the lamp draws from the 6,000mAh pack first, holding its own internal cell in reserve. You get up to 2x the usual runtime on an NU40.
Run a headlamp straight through a long night out, then still have its built-in battery ready when the pack runs flat. One charge covers sunset to sunrise on most trail runs.
A red rear light that keeps you seen.
A red safety light sits on the body, facing behind you when you wear or clip the pack. Hold the power button for one second to switch it on, and drivers, cyclists and the runners behind you pick you out well before they reach you.
It is the visibility a road-side walk home or a night trail wants, built into the battery you are already carrying.
Carbon fibre keeps 6,000mAh down to 88 grams.
The carbon-fibre reinforced shell packs a 6,000mAh cell into a body that weighs just 88g, about the weight of a small chocolate bar. That works out to 15.4g of structure around a 72.6g cell, an energy density of 245.5Wh/kg.
You carry hours of extra light and a phone top-up while barely noticing the weight in a pocket or pack.
Sealed for rain, mud and wet crossings.
An IP68 rating means the pack keeps dust out and stays sealed when submerged to 2m, so a dropped-in-the-creek moment or a downpour is a non-event. Rinse it clean under the tap after a muddy trip and carry on.
The carbon-fibre shell also takes a 1m drop in its stride, so a rugged battery does not have to be a heavy one.
WHY THE CARBON BATTERY 6K OVER A GENERIC POWER BANK
Charges and powers a headlamp
It tops up a phone like any bank, and feeds a compatible Nitecore headlamp through USB-C for up to 2x the runtime. A generic bank only charges between uses.
Seen as well as charged
A built-in red rear light keeps you visible from behind on the road. An ordinary power bank does nothing for your safety in the dark.
Light enough to forget
88g of carbon fibre for 6,000mAh, about the weight of a small chocolate bar. Most pocket banks of this capacity weigh noticeably more.
Built for the outdoors
Sealed to IP68 and submersible to 2m, with a 1m-drop carbon shell, where a typical bank wants to stay dry in a bag.
A steadier beam, not just a longer one.
When the pack is connected, compatible headlamps switch into Performance Mode, which eases the rate at which brightness steps down so output stays more stable over time. The trail ahead holds a consistent level of light instead of fading as the hours add up.
For a night run or a long approach, that means fewer dim patches and a beam you can trust deep into the dark.
Check the charge at a glance.
A short press of the power button lights three red indicators that read out the remaining charge at 100, 70 and 30 percent. You know before you set off whether the pack has a phone top-up and a night of headlamp runtime left in it.
Hold the same button for a second and those indicators become the rear safety light, so one button covers both jobs.
WHERE IT EARNS ITS PLACE
Trail Running
A steadier headlamp beam deep into a night run, with a red rear light for the road sections home.
Hiking
Up to 2x the headlamp runtime for a long descent, plus a phone top-up for GPS when the screen runs low.
Camping
Hours of light from one charge, IP68 sealing for dew and rain, and USB-C to keep devices going.
Everyday Carry
A pocket-sized phone top-up for the commute that doubles as headlamp power for the weekend.
EXTENDED RUNTIME BY HEADLAMP
| PAIRED WITH | RUNTIME UP TO |
| NU40 | 2x longer |
| NU43 | 1.6x longer |
| NU50 | 1.3x longer |
| HC65 UHE | 1.2x longer |
Compatible headlamp models
NU40, NU43, NU45, NU50, NU53, HC60 UHE, HC65 UHE and HC70 UHE.Connect with any USB-C to USB-C cable.
TECHNICAL SPECIFICATIONS
| Cell | 21700 Li-ion |
| Capacity | 6,000mAh 3.6V (21.6Wh) |
| Rated Energy | 3,700mAh 5V (TYP 1A) |
| Energy Density | 245.5Wh/kg |
| USB-C Input | 5V⎓2A |
| USB-C Output | 5V⎓2A (10W) |
| Rear Light | Red safety blinker |
| Water Resistance | IP68 (submersible to 2m) |
| Impact Resistance | 1m |
| Dimensions | 22.8mm × 90.4mm (0.90" × 3.56") |
| Weight | 88g ± 3g (3.10 oz) |
FREQUENTLY ASKED QUESTIONS
Does this come with a headband?
No. This is the standalone Carbon Battery 6K, the bare battery on its own, which is why it is priced below the kit. If you want the widened headband and bracket to wear it on your head, choose the Carbon Battery 6K Headband Kit instead. This version suits buyers who already have a headband or headlamp, or who want it purely as a power bank.
Will it extend my headlamp's runtime?
It powers the Nitecore NU40, NU43, NU45, NU50, NU53, HC60 UHE, HC65 UHE and HC70 UHE through their USB-C ports. Runtime gains depend on the model, up to 2x on the NU40, 1.6x on the NU43, 1.3x on the NU50 and 1.2x on the HC65 UHE. You supply a USB-C to USB-C cable, as one is not included.
How do I read the charge level and use the red light?
A short press of the power button lights three red indicators at 100, 70 and 30 percent so you can check the remaining charge. Holding the button for one second switches on the red rear light for visibility, and it stays off otherwise to preserve charge.
What's In The Box
- 1x Carbon Battery 6K (6,000mAh) - carbon-fibre external battery with USB-C port and red rear safety light
The standalone battery ships on its own. A USB-C cable and headband are not included. For the headband and bracket, choose the Carbon Battery 6K Headband Kit.
A pocket power bank that also runs your headlamp longer.
GET YOUR CARBON BATTERY 6K NOWYou’re Backed by Our 60-Day Ironclad Guarantee
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Try it for 60 days. If it’s not right for you, send it back.
We stand behind our gear. If you’re not happy with your purchase, just return the full package within 60 days and we’ll issue a full refund—no fuss, no forms, no hoops to jump through.
What Happens After You Order
- You’ll get an instant order confirmation email with your receipt.
- We’ll pack your order the next working day and send you a tracking number once it’s on the way.
- From the moment you order to the moment it reaches your hands, we’re here to keep you updated and supported.
When will I receive my gear?
- Singapore: Delivered to your doorstep in 4–6 working days.
- International: Arrive within 10–14 working days.
Returns and warranty
- Every product comes with a 1 to 3-year replacement warranty (depending on the item).
- If anything isn’t working right, just let us know. We’ll make it right.
FREE Gift with Purchase: Limited Edition Ember Shard Whistle
Spend $99 or more today, and we'll automatically include a limited-edition Glow-in-the-Dark Ember Shard Whistle when packing your order.
Charge it quickly under sunlight or your flashlight, and enjoy its subtle glow throughout the night—perfect for marking gear, emergency kits, or attaching to your bag.
Limited quantities. These will be swapped (at our discretion) to other gift items if shards are unavailable.
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