Aircraft Economics
Why Cleaning-Drone Battery Life Matters More Than the Brochure Suggests
Battery life is not just hover time. It controls how often a crew interrupts cleaning, lands a live-hose aircraft, swaps packs, restages the hose, and climbs back into position. Apellix and Lucid publish maximums of 32 and 19 minutes respectively. That is a meaningful 13-minute gap, but it is not a controlled head-to-head field test and it is not a promise of 68% more production.
32 vs 19
Published maximum minutes
Thirteen additional advertised minutes, or roughly 68% longer. Nearly double, not 2x.
[01]
The last minute of battery is not a working minute
Every published 'up to' figure is a ceiling. A professional plan protects a landing reserve. Wind, hose weight and drag, spray configuration, temperature, battery age, and repeated high-load cycles can all reduce usable time.
The FAA requires the remote pilot to confirm enough power exists for the intended operating time. That means the brochure maximum is never the planned work window.
[02]
The published comparison is still material
Apellix publishes up to 32 minutes for the B2. The Sherpa manufacturer publishes up to 19 minutes. The honest formulation is 'nearly double published flight time.' Calling it 2x would be wrong, and turning maximum runtime into a production guarantee would be worse.
Thirteen minutes can matter because cleaning is interrupted by transitions, not just by the battery swap itself. The aircraft must leave the façade, descend with the hose, land, power down, receive a safe pack change, restart, and return to the exact work area.
[03]
A workday runs on a battery system
The B2 package includes eight batteries and two rapid chargers. That matters because a commercial workday is a rotation system: packs flying, cooling, charging, being inspected, and being held in reserve. Charger power, generator capacity, pack temperature, cycle history, storage, and retirement discipline are part of aircraft productivity.
Longer usable legs can mean fewer takeoffs, landings, and hose-restaging events. It can improve rhythm and reduce exposure to the most transition-heavy parts of the mission. It still does not tell you square footage, job duration, or margin by itself.
[04]
Where batteries stop being the answer
Lucid offers an optional ground-power tether. On a compatible job, continuous power changes the comparison. It also makes generator capacity, tether setup, hose type, tested height, cable management, and emergency procedures the controlling questions.
Flight time is not the whole aircraft. But when the rest of the job is equal, more usable airborne time means fewer interruptions and more room to run the work professionally.
Evidence [3]
With Guaranteed Work