EJ Battery is a leading manufacturer and global supplier of advanced battery solutions, specializing in LiFePO₄ (Lithium Iron Phosphate) batteries for a wide range of applications, including RVs, camper vans, marine, automotive, off-grid energy storage, industrial equipment, and mobility systems.

In addition to our standard product portfolio, we provide custom battery pack design and OEM/ODM manufacturing services, delivering tailored energy solutions that meet the unique requirements of customers worldwide.

Driven by continuous innovation, EJ Battery is committed to developing smarter and more reliable energy storage technologies. Our product range features advanced Battery Management Systems (BMS), Bluetooth connectivity, CAN Bus and RS485 communication, active cell balancing, and intelligent battery monitoring, ensuring superior safety, performance, and long service life.

Beyond battery manufacturing, EJ Battery is also a recognized developer and manufacturer of smart battery monitors (coulometers), offering high-precision solutions for real-time monitoring of battery voltage, current, state of charge (SOC), capacity, and overall system performance.

With a strong focus on quality, innovation, and customer satisfaction, EJ Battery continues to invest in research, engineering, and advanced manufacturing processes to deliver reliable, efficient, and long-lasting energy solutions for customers around the world.
As a frontrunner in the battery industry, we pride ourselves on our innovative design and development capabilities. We are also recognized as the lead manufacturer of battery coulometers, ensuring precise measurement and monitoring of battery capacity and performance.

Our commitment to excellence drives us to continually advance our technology and production processes, providing our clients with reliable, efficient, and long-lasting energy solutions.
Features include advanced BMS, Bluetooth communication, and active intelligent monitoring

E&J Technology Group CO., LTD.

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E&J Technology Group CO., LTD.

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