BACK IT NOW
Featherlight. Trail-Tough. Built for the Wild.
In the backcountry, weight isn’t just a number—it’s how far, how fast, and how free you move. And when power fails, you don’t just lose a phone—you lose navigation, safety, and connection.
That’s why we made Zero Power, the world’s lightest and thinnest 10,000mAh power bank, built for ultralight hikers and trail runners.
At just 145g (5.1 oz) and 9.9mm (0.39") thin, it’s lighter than your phone—and even lighter than three energy gels (60g / 2.1 oz each). Race-legal and vest-ready, it disappears in your pack—until you need it most.
Stretch Goal
Lighter Than Anything You’ve Carried
From shoes to headlamps, trail athletes cut every gram. But power banks? They’re usually dead weight.
With a compact body, it’s 55% smaller than standard bricks in this category. That’s serious savings in your vest, and serious freedom on the trail. No bounce. No bulk. Just clean, pocket-sized power.
Stronger Than the Trail
Zero Power is built with forged carbon fiber—a premium material used in supercars and spacecraft, now brought to trail gear. Unlike aluminum, forged carbon is compression-molded from short fiber bundles, delivering exceptional strength at ultra-low weight.
- Why Forged Carbon Wins
- Lab Tested
Forged carbon delivers 6× the puncture strength, ensuring the battery cells stay protected in unpredictable mountain terrain.
- Trail-Tested
Tested with real trail hazards — including direct impact from a sharp trekking pole.
- Flame-Resistant Design
Zero Power's frame is made from aerospace-grade nylon reinforced with fiberglass and an added flame retardant. It resists ignition when exposed to open flame—offering extra safety and protection for every outdoor adventure.
- Behind the Tech
Forged carbon was originally developed for complex 3D geometries that must resist variable stresses—from direction to magnitude. Today, it offers best-in-class structural protection in ultra-lightweight applications. And now, it powers trail gear.
Chip-Driven Efficiency
Zero Power uses a smart SoC chip and high-density cobalt battery to deliver more usable energy in every charge. With 95% voltage boost efficiency and up to 30% less power loss, it performs reliably even in cold, overnight treks.
The system intelligently balances output—offering two modes: Fast Charge for quick boosts, and Smart Efficiency to stretch power longer.
22.5W Fast Charging
Need to top up fast? Zero Power supports 22.5W Fast Charging—powering your iPhone 15 Pro to 50% in just 26 minutes.
Smart Mode, More Miles
Need more power on longer trips? Just double-press to activate Smart Efficiency Mode — giving you up to 30% more usable energy compared to Fast Charge.
That means instead of 2 full charges, your iPhone 15 Pro gets up to 2.6 charges — that’s 0.5 more than most power banks. (*Tested by Flextail Lab)
- What can Zero Power fully charge?
And when your device is full, Zero Power auto-stops charging—so no energy is wasted while you sleep.
Designed for Emergencies
Zero Power features an auto-stop safeguard that locks in the last 10% of battery. This emergency reserve gives you up to 30% phone battery—just enough for a call, a GPS fix, or emergency headlamp use.
Why Zero Power is the Best
Weather-Ready in Any Condition
- IPX4 Water-Resistant
Withstands rain, splashes, and sweat, so you can charge through storms or wet conditions without worry.
- –10°C Cold-Weather Compatible
Designed to operate reliably in freezing conditions when other banks fail.
More Design Details
More Safety Features
More Durability Tests
Tested by Flextail Labs to withstand 40,000+ plug/unplug cycles — built for-term reliability in the wild.
We’ve also put it through comprehensive water-resistance testing—its IPX4 rating is more than enough to handle unexpected splashes and rain on the trail.
Specifications
