Li-S Energy says its Pegasus research drone flew for almost two hours and covered more than 75 kilometres on a single lithium sulfur battery pack during Queensland trials announced September 30. Source: Li-S Energy.
The test configuration
The company says the airframe was supplied by V-TOL Aerospace and includes a Halocell Energy solar array. The flight ended safely with reserve battery capacity, according to the partners. This is a reported demonstration result, not an independent certification of endurance under every payload and weather condition.
Why chemistry matters
Long endurance gives inspection and mapping operators more area per sortie, but usable range also depends on wind, reserve policy, payload mass and battery health. Li-S Energy claims its cells supplied 80 percent more range and flight time than a comparison lithium polymer pack at equal cell weight; the assumptions behind that comparison need independent scrutiny.
What comes next
The partners describe a future two-pack configuration with a five to eight hour target. That remains a development goal. The strongest follow-up would be repeat flights with published payload, temperature, reserve, cycle-life and charging data before commercial operators rely on the performance claim.
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