We are friends doing too many trails. And a watch that kept dying at the worst possible moment.

We've been hiking and running together for years, tackling the kind of routes that take days, not hours, long GPX files, big climbs. We've all been there: morning starts where we thought the watch charged overnight, but it had other plans. Mid-trail, battery warning. Brain switches from runner to accountant: HR off, GPS down, pace up, pray. That race finish you trained six months for? Sprinted it at 100%, because the watch was at 4%. We looked for a solution. Found nothing that actually worked while moving. So, we started building. First versions were rough. We tested them on ourselves real trails, real runs, real bad weather. Broke a few, improved a lot, started over more than once. Every version got a little lighter, a little more reliable, a little more "wait, I forgot it was even on my wrist." A few years and a US patent later, here we are. LongRun is what we built for ourselves. We still use it every single time we head out. If your watch has ever let you down mid-trail, this one's for you.

Our Mission

To keep endurance athletes powered through the activities their watches were never built to outlast. We build wearable power that runs with you, so no run, hike, climb, or workday ends with a black screen and lost data.

Faced with this problem, we decided to build the solution: LongRun.

LongRun is a 19-gram waterproof Garmin charger  that lives on your Garmin strap. It snaps into the side charging port, feeds power continuously while GPS keeps running, and restores up to 100% of
most Garmin models' battery in a single cycle.

You don't stop. You don't unstrap anything. You don't lose data. You snap the connector in and keep going.

We built it specifically for Garmin because that's what we wear. We made it IP67 waterproof because rain and sweat and river crossings are part of the work. We kept it under an ounce because anything heavier and you'd feel it on your wrist at hour 8. We added a 4-stage LED gauge because not knowing how much charge you have left is its own kind of failure.

The result is a piece of gear that disappears into your kit. You'll forget it's there until the moment you need
it. That's the whole point.

LongRun is for the ultra runner at mile 60 with 40 still to go. It's for the hiker on day three of five. It's for anyone whose watch should keep up with them- not the other way around

Explore LongRun

Our Vission

A world where battery life is no longer the weakest link in your gear. Where every athlete finishes the activity with the full GPS track, the full heart rate file, the full safety net intact. Wearable power as standard kit, on every wrist that's pushing past 12 hours.