5-inch long-range FPV drone hovering over a meadow

Meet 4S & 6S.

4S Black Series Battery
4S · Black Series
6S Black Series Battery
6S · Black Series

Black Series

Fly 2–3× longer on a single pack. The 4S and 6S Black Series carry 72–108Wh of energy at roughly 40% less weight than equivalent-capacity LiPos, with 70A continuous discharge on tap for FPV, robotics, and high-drain applications.

Aerial drone shot over an open road

Power
Without
Limits.

Every Hyperflux pack is built from hand-matched tabless 21700 cells with ultra low internal resistance, bench-tested before it ships. Minimal voltage sag compared to lithium polymer, and because lithium-ion carries over 50% more energy per gram than LiPo, every gram you carry buys you more time in the sky. Long range, cinematic, robotics at full throttle: this is the chemistry built for endurance.

Black Series

The Range

Capacity

5000mAh

Continuous

70A

Burst (5s)

140A

Cycle Life

500+

New Zealand mountain landscape

Our Story

Hyperflux was born at the end of a four-minute flight.

We're engineers who have been building, racing, and crashing in the New Zealand RC and FPV scene since 2016. For years, every session ended the same way: packs dead, day over, wallet lighter. LiPos that sagged after thirty cycles, and “high-capacity” imports that weighed like bricks and flew like them.

So we built the battery we actually wanted.

High-capacity lithium-ion packs with genuinely high current delivery, designed, assembled, and bench-tested right here in New Zealand by people who fly what they build.

No inflated markups. No inflated specs — every number we publish is on the official cell datasheet, and every pack is discharge-tested before it leaves the bench.

Whether you're chasing your first ten-minute flight or your hundredth, we've got your back with gear built by Kiwis, for Kiwis.

Welcome to the Hyperflux family.

New Zealand high country, where Hyperflux is designed and built

“High-drain cells and precision engineering, built for pilots, builders, and competitors who refuse to compromise on power or reliability.”

HyperFlux Design Manifesto

What We Stand For

Relentless Innovation

We obsess over every milliohm, every amp, every gram. Our packs are engineered with high-drain lithium-ion cells and precision BMS so you can push your build to the limit.

Uncompromising Reliability

Built to deliver under load. Every pack is tested for sustained 70A discharge, 140A burst, and thermal stability before it ever leaves the bench — the same numbers on the official cell datasheet, not marketing estimates.

Made in New Zealand

Designed and assembled in NZ, not mass-produced offshore. Tight quality control, honest specs, and packs built to last more cycles, not replacement cycles.

Builder Community

From FPV racers to robotics teams, every piece of feedback shapes what we build next. Our community of pilots and builders is our most important R&D team.

Hyperflux batteries use top of the line tabless high-drain lithium-ion cells and smart engineering, designed for pilots, builders, and competitors who push their systems hard.

Hyperflux-powered FPV cinewhoop ready to fly