1 Hour, 53 Seconds of Continuous Drone Cleaning

Sherpa Drone just completed 1 hour and 53 seconds of continuous exterior cleaning using Lucid Bots’ new power tether—unlocking effectively unlimited flight time.

December 12, 2025
|
3 MIN READ

Lucid Bots builds U.S-made robots for dirty, dangerous cleaning work. 

On a recent exterior cleaning job, Sherpa Drone stayed in the air for 1 hour and 53 seconds of continuous cleaning at 3,500 PSI and 8 GPM.

No battery swaps.
No landing every few passes.
Just steady exterior cleaning at height while the crew stayed on the ground.

Our CEO, Andrew Ashur, put it simply: this was the longest commercial drone cleaning flight we’ve ever seen – and a big step toward making drones a true all-day tool on real jobsites.

Why this flight matters

Until now, drone cleaning has been limited by batteries.

A typical day with Sherpa Drone looks like:

  • Clean for 10–20 minutes
  • Land
  • Swap batteries
  • Take off, line up again
  • Repeat

It works, but you lose time and rhythm on every swap. Jobs get planned around chargers and packs instead of just buildings, water, and crew.

With our new power tether, that equation changes.

By feeding power from the ground, it gives Sherpa Drone effectively unlimited flight time: the practical limit on a job is no longer at the fault of the drone batteries. Limitations become things like crew endurance, site scheduling, generator fuel, etc. rather than remaining battery capacity. We’re not removing constraints entirely, but we are moving them off the drone’s batteries.

On this record flight, the drone didn’t come down because the battery was dead. It came down because the section of work was done.

That’s the shift we care about.

What actually happened on the job

This wasn’t a lab test or a parking-lot demo. It was a live exterior cleaning job with all the usual constraints.

On this flight:

  • Mode: High-pressure exterior cleaning at height
  • Runtime: 1 hour, 53 seconds of effectively continuous work
  • Pressure / flow: 3,500 PSI, 8 GPM
  • Crew: Operators stayed safely on the ground

Sherpa Drone handled every pass on the wall. The crew focused on:

  • Managing hoses and water supply
  • Watching for quality of clean
  • Keeping eyes on the site, not on battery timers

Under the hood, we paired the power tether with updated onboard power electronics designed for long flights. From the operator’s point of view, though, it felt simple:

“It just stayed up and kept cleaning.”

That’s the experience we’re building toward.

What this unlocks for operators

For contractors, facility managers, and building service companies, this milestone shows up in a few concrete ways.

1. More work per crew per day
With no battery swaps, more of the day is actual cleaning. Sherpa Drone becomes an all-day workhorse for glass, facades, and other exterior surfaces at height.

2. Less time in lifts
Sherpa Drone does the work at height so crews can stay safely on the ground. That means:

  • Fewer lifts to rent, move, and maintain
  • Fewer people working on edges, roofs, or swing stages

3. Simpler planning
Instead of planning around chargers and packs, you plan around:

  • Water
  • Generator fuel
  • Crew schedules

In other words, the things you already think about on a pressure washing job.

What’s next

This was Lucid’s first and longest exterior cleaning jobsite flight with the power tether. It’s a milestone, not the finish line.

From here, our team is focused on:

  • Repeating long-duration flights on more buildings and surfaces
  • Gathering real-world feedback from operators
  • Making the power tether available to more Sherpa Drone customers

We automate the ordinary, so humans can do the extraordinary.

If you want fewer people in lifts and more work done from the ground, talk with our team about using Sherpa Drone with the power tether on your next job.

Related Articles

Lucid Bots Podcast

How Ryan Godwin is Transforming Exterior Cleaning with the Sherpa Drone

Dive into the future of exterior cleaning with Ryan Godwin, the visionary behind Lucid Bots. Discover how Ryan is leveraging cutting-edge robotics to revolutionize cleaning for buildings and outdoor surfaces—boosting efficiency, safety, and sustainability.

Watch All

Maximize Efficiency with Autonomous Surface Cleaning

"You quickly recover that investment in just a couple of months... With this approach, you can reduce operating expenses by 40 percent or more."

– Francisco Oliveras, Owner, PWR Wash PR

Download E-Book

Love what you see?

Be the first to know when we add new videos, blog posts and more.