The 2026 World Drone Congress and Shenzhen International Drone Exhibition (UASE) has just concluded at the Shenzhen Convention and Exhibition Center.
Walking through the exhibition halls in Futian, the most intuitive takeaway is this: the “range anxiety” of the low-altitude economy is being put to an end by a frenzy of technological breakthroughs. From Grepow unveiling new products with an energy density of 450Wh/kg, to Tai Blue New Energy showcasing 550Wh/kg anode-free solid-state batteries, this year’s exhibition undoubtedly sent a strong signal—the drone power battery industry is fully diving into the deep waters of “ultra-high specific energy” and “solid-state technology.”
As a professional manufacturer deeply rooted in the field of cylindrical lithium batteries, while keeping an eye on the industry’s extreme breakthroughs, SunPower (Changhong Sanjie) focuses even more on how to translate cutting-edge cell technology into reliable power that makes current drone products “fly farther, fly more steadily, and safer.”
Ⅰ. The Ultimate Game of Energy Density: Born for Long Endurance
At this year’s exhibition, 400Wh/kg seemed to become the “entry ticket” for high-end drone batteries. For us, increasing energy density is not just a numbers game in the lab, but a way to turn every gram of weight into tangible flight time.
Our flagship 21700-50SE cell is the mature answer to this philosophy. With a large capacity of 5000mAh and extreme weight control, it provides a surging “heart” for industrial drones and long-endurance equipment. Market validation with cumulative sales exceeding 200 million units proves that it has found the perfect balance between energy density and commercial stability
Ⅱ. High-Rate Discharge: Conquering Every Rapid Ascent
Besides flying long, drones must also fly powerfully. Facing the instantaneous high-load demands of drones in scenarios like emergency rescue and cargo delivery, the explosive power of the battery is crucial.
Our battery pack solutions are specifically designed for high-rate discharge. They can calmly handle the instantaneous high-current surges during drone takeoff and climbing stages, eliminating the risk of “altitude drop” and ensuring absolute stability in flight attitude.
Ⅲ. Wide Temperature Range & High Safety: Fearless in Extreme Environments
From ice and snow inspections in the north to scorching operations in the south, true industrial-grade batteries must possess all-weather adaptability. Relying on Sunpower’s strong R&D heritage (including a research team led by 16 doctors and a Lighthouse Lab), our cells demonstrate excellent performance in wide temperature range adaptability, maintaining high activity output even in extreme cold. Meanwhile, paired with an intelligent BMS (Battery Management System), it provides millisecond-level safety protection for every flight.|
The conclusion of UASE 2026 is the prelude to a new chapter in the low-altitude economy. On the eve of the widespread adoption of solid-state batteries, Sunpower (Changhong Sanjie) is willing to provide a solid energy backing for global drone enterprises with our mature, reliable, and high-performance 18650/21700 cylindrical battery solutions.
Let flight no longer be limited, and let power be within reach.