18 USA 
1 Russia 
1 Argentina 
Oem Odm Battery Pack Designs - China
price: 1.00 Dollar US$
Its high energy density enables drones to store a significant amount of power within a compact and lightweight design, addressing the critical constraints of weight and size.
This characteristic makes the 21700 cell an ideal choice for drones, providing ample energy to sustain prolonged flights.
For instance, in aerial photography, professional drones equipped with 21700 cells can achieve flight times of 20–30 minutes or more, allowing users to capture a wider range of visual content without frequent interruptions.
In terms of power output, drones require high bursts of energy during takeoff, hovering, rapid direction changes, and other dynamic maneuvers.
The 21700 cell excels in delivering large currents instantly, ensuring that the motors can respond swiftly to flight control commands.
Whether it's a sudden ascent or evasive maneuvers to avoid obstacles, the battery provides sufficient power to enable quick adjustments in flight posture and ensure agile, precise movements.
Company Contact:
- Posted By: Zigong Joinsun co,. Ltd
- Phone: 0813-8258888
- Address: 6-45 Xinyuan Road, Yantan District, Zigong , Sichuan , China
- Email:
- Website: https://www.joinsunbattery.com/
Published date: May 28, 2026
- Business Description: Zigong JOINSUN Technology Co., Ltd. established in September 2022 with a registered capital of 60 million yuan, is a technology-oriented small and medium-sized enterprise specializing in the research and development, production, and sales of lithium-ion power batteries, ultra-large capacity energy storage batteries, battery management systems, rechargeable battery packs, and wind and photovoltaic energy storage systems.
The company boasts an advanced technology and management team, as well as a comprehensive R&D, production, quality control, sales, and service system, holding a significant brand position in the field of power batteries.
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