At Tulip Tech, we are making great strides in battery technology. Thanks to our innovative high-energy Lithium Metal batteries, with an impressive energy density of 450 Wh/kg, we have drastically extended the flight time of the tactical drone DeltaQuad Evo. This results in longer flight times, better performance, and more operational possibilities.

Test results: Over 8 hours of continuous flight

In a recent long-distance test, the DeltaQuad Evo flew for 8 hours and 1 minutes, covering a distance of 500 kilometers. This achievement marks a record-breaking flight duration for a fully electric VTOL UAV, placing the DeltaQuad Evo equipped with this technology comfortably within Group 3 drone endurance while maintaining a Group 1 weight profile.

Despite heavy rain and crosswinds reaching 22 knots, the DeltaQuad Evo completed its mission with ample battery reserve. This flight demonstrates the operational reliability of the Evo platform, even in demanding conditions, and highlights what’s possible when European hardware innovation aligns.

By combining DeltaQuad’s advanced VTOL systems with Tulip Tech’s high-density battery technology, this milestone reflects the strength of collaboration between specialized teams with deep domain expertise.

With growing demand for persistent ISTAR capabilities—particularly visible in current operational theaters such as Ukraine—the Evo redefines endurance for electric VTOL UAVs. The next phase will focus on expanded testing across payload classes, weather extremes, and communication systems.

What does this mean for drone operations?

A longer flight time opens the door to new possibilities, especially for missions where range, endurance, and continuity are crucial:

• Long-distance missions without intermediate interruptions
• Observation and reconnaissance, for example in agriculture, infrastructure inspections, and defense
• Situations where battery swaps are difficult, time-consuming, or impractical

By using the battery more efficiently, drone operators can better plan their missions, minimize breaks, and cover larger areas.

Would you like to learn more about our battery solutions for drones like the DeltaQuad Evo? Please reach out to [email protected].