Power Behind Every Flight
From Vision to Reality — Global Leader in Total Battery Pack Solutions for Drones
Discover how Defond delivers high-performance battery solutions through innovation, precision, and full-chain manufacturing capabilities.
Technology Partners
Collaborating with industry-leading partners to drive innovation and deliver reliable, high-performance solutions.
Drone Power System Solutions
Integrated Cell, BMS & PACK Manufacturing
Our Services
Custom Battery Solutions
Defond provides high energy density, long cycle life, and customized battery cells tailored to various drone applications, from consumer to industrial systems.
In-house BMS Development
The company offers self-developed chip-level Battery Management Systems (BMS) that ensure efficient power management, long-lasting battery health, and operational safety.
PACK Assembly & Manufacturing
Defond provides integrated battery pack assembly services, combining battery cells and BMS for customized, high-performance solutions.
Drone Battery R&D & Design
The company specializes in designing and developing battery systems tailored to the specific needs of different drone industries, ensuring optimal performance and stability.
Global Technical Support & After-Sales Services
Defond offers comprehensive global support, including technical assistance, product upgrades, and battery management training.
Industry-Specific Solutions
Defond offers tailored battery solutions for industries like agriculture, power inspection, and emergency response, optimizing drone performance in each application.
News center
Why More Industrial UAV Systems Are Switching to 21700 5000 Battery Solutions
In industrial drone applications such as power inspection, mapping and surveying, agricultural monitoring, emergency response, and infrastructure inspection, battery performance
The Evolution of Drone Battery Materials: A Perspective from DJI
Despite both being DJI products, consumer drones and dozens-of-kilograms heavy-lift drones have adopted two completely different battery technology roadmaps: while
Lithium-Ion Battery Classification Decoded: From Shape to Electrolyte, A Deep Dive into the Li-ion Family
Lithium-ion batteries are not a single, uniform product, but rather a vast and diverse family. Depending on the classification criteria,
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Owen Wu:+86-18818788885 (Wechat/Whatsapp)
owen.wu@defondtech.com -
Joe Zhou: +86-13825217651 (Wechat)
sales@defondtech.com - Shenzhen office: Shentengyao Building, Hexiu West Road, Fuyong Fuhai Street, Bao'an District, Shenzhen City, Guangdong Province, 518100, China
- Factory 1: No. 8 Xingyuan Road, Huangqiao Industrial Park, Taixing City, Jiangsu Province, China
- Factory 2: No. 36, Xinping Avenue, Yongxing Town, High-tech Zone, Mianyang City, Sichuan Province, China