Defond Technology

Shenzhen Defond Technology Co., Ltd. makes battery solutions for drones. The company is based in Shenzhen, China, and was founded in 2016.

Defond covers the whole battery chain for drones. It offers custom battery cells, its own chip-level battery management systems (BMS) and pack manufacturing. It says it does all of this in-house, which helps with performance, compatibility and delivery speed. Its aim is to fill the gap in full-chain independent research and development and to promote safer, smarter drone energy systems.

The product range includes lithium-ion cells in the 18650, 21700 and 32700 sizes. These come as high rate cells, wide temperature cells and all-tab cells. It also sells cylindrical battery packs in many series and parallel layouts, LiPo packs, high voltage LiPo packs, FPV drone batteries and batteries for agricultural drones. In addition, Defond makes active balancer modules and BMS boards, as well as rechargeable AA, AAA and 9V batteries with USB-C charging.

The company designs its batteries for high energy density, long cycle life and steady output in harsh conditions. It supports both consumer drones and industrial drone projects. Its solutions are used in agriculture, power line inspection and emergency response. Customers are in more than 30 countries and regions, and include UAV makers and industrial drone developers.

Defond offers fast custom development, OEM and ODM lithium battery services, and technical advice. Its production covers both small batches and mass production. It runs an automatic production line and advanced test equipment. The company has factories in Taixing in Jiangsu province and in Mianyang in Sichuan province, as well as an office in Shenzhen.

Defond holds ISO 9001 and ISO 14001 certifications for its management systems. It also lists safety and transport certificates for its cells, such as UL, CB, SGS and UN38.3. Buyers can request a quote and ask for a non-disclosure agreement to protect their project details.

Services

• Drone battery packs
• Custom battery cells
• Battery management system development
• OEM and ODM lithium battery services
• Lithium-ion cells
• LiPo battery packs
• FPV drone batteries
• Agricultural drone batteries
• Battery active balancers
• Technical consultation