Core Shipment Data (As of End of 2025)
- 2024 Annual Shipment: In 2024, the SunPower 21700-50SE achieved a shipment volume exceeding 15 million cells, marking the first domestic 21700 cell to break through both high capacity and high discharge rates. It broke the technical monopoly of Japanese and Korean brands, receiving global certifications including CCC and UL1642, and officially entered the high-end market supply chain (Source: Sohu, May 21, 2025).
- Total Cumulative Shipments: As of April 2026, the total shipment of the SunPower 21700-50SE reached over 188 million cells. After 3.5 years of market validation, its performance—featuring 2C fast charging and 7C high discharge rate—has led to widespread adoption in fields such as FPV drones, model aircraft, power tools, and high-end power banks. FPV racing remains one of the core application scenarios (Source: Charging Head Network, January 30, 2026; Battery Trading Network Joint Report).
Core News on Production Scale (Domestic Dual Bases + Overseas Expansion)
- Domestic Production Capacity (Mianyang + Taizhou Dual Bases):
- Changhong Sanjie has strategically established two intelligent production bases in Taixing, Jiangsu, and Mianyang, Sichuan, with 11 automated production lines for cylindrical lithium batteries. The daily production capacity of cylindrical cells reaches 2 million units, with an annual total capacity of 500-600 million units. The 21700 series production lines have a utilization rate of 80%, ensuring stable large-scale supply for the FPV 50SE cells (Source: Xinhua News, May 20, 2025).
- Dedicated 21700 automated production lines have been launched at the Taixing Phase IV and Mianyang bases, utilizing full automation assembly systems from South Korea and AI intelligent control. This ensures the consistency, low internal resistance, and stable discharge performance of the cells, perfectly meeting the demands of large-scale FPV battery pack assembly (Source: China News, December 31, 2025).
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Overseas Expansion Latest Developments (April 2026 Announcement):
On April 3, 2026, Changhong Energy announced an investment of 999 million RMB to build a high-rate lithium battery base in Malaysia. New production lines for 21700 series cells will add an annual capacity of 85 million units, specifically for serving European and Southeast Asian markets. This expansion will enhance the FPV cell supply for overseas markets, catering to the growing demand from Europe’s low-altitude economy and the FPV racing sector (Source: China Battery Industry Association, April 7, 2026).
Key Market Highlights in the FPV Sector
- The SunPower 21700-50SE is the first-choice domestic alternative for FPV racing drones and vertical take-off fixed-wing aircraft, offering comparable performance to the Samsung 50S cell. Its competitive pricing has made it the preferred choice for many leading FPV battery assembly companies, suitable for 5-7 inch racing drones and heavy-duty UAVs across various scenarios.
- With advantages in low internal resistance, 7C continuous discharge, and stable discharge at temperatures as low as -20°C, the SunPower 21700-50SE’s shipment share in the overseas FPV market (including Ukraine and Europe) continues to rise. It has become a benchmark product for domestic high-rate lithium cells entering the global market.