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Industries
Joinsun specializes in producing high-performance lithium battery cells that serve a wide range of industries with diverse power demands. Our cylindrical cells—including INR18650 and INR21700—as well as lithium polymer pouch cells, are engineered for high energy density, long cycle life, and certified safety.
Our 21700 and 18650 cells deliver high capacity, stability, and excellent thermal management, making them ideal for electric scooters, e-bikes, delivery motorcycles, and low-speed four-wheelers. We provide full pack customization with BMS, fast-charging, and enclosure solutions.
Our lithium cells are used in solar and grid-connected storage systems for homes and businesses. These cells support long cycle life, deep discharge, and scalable configuration for backup power, peak shaving, and off-grid energy use.
Joinsun offers battery cells that meet stringent safety and stability requirements, perfect for powering CPAP machines, portable ventilators, monitors, and infusion pumps. Our designs focus on compact size, regulated output, and medical-grade safety.
We produce compact and energy-efficient lithium cells ideal for smart locks, sensors, cameras, and wireless home systems. These cells support ultra-low standby currents, long shelf life, and seamless integration with IoT modules.
Our high-drain 18650 and 21700 cells are widely used in power tools, inspection devices, autonomous mobile robots (AMRs), and warehouse automation. Designed for high shock resistance and stable continuous current output, they perform reliably even in rugged environments.
From tablets to Bluetooth speakers, Joinsun lithium cells power a wide array of consumer electronics. We offer certified, compact, and safe cell solutions with custom voltage and capacity configurations to fit your product design.
All Joinsun battery cells are manufactured under strict ISO standards and pass full-cycle reliability testing, thermal abuse analysis, and international certifications. Whether you need high-rate output or ultra-compact design, we can provide cell-level solutions tailored to your application. Contact us today for expert consultation and fast prototyping.
Unlock the Power of 18650 Battery Cells in Your E-Bike!
Experience the ultimate performance with 18650 battery cells in your electric-assist bicycle. These cutting-edge cells provide a steady power supply to your bike's motor, delivering seamless assistance during your rides.
Healthcare Equipment with 18650 Battery Cells
In the realm of medical devices, 18650 battery cells play a crucial role. These cells are the go-to power source for portable medical equipment, offering a reliable power solution that is ideal for various applications.
The 18650 Lithium-Ion Battery Cell Plays a Crucial Role in the World of Portable Power Banks
The 18650 lithium-ion battery cell plays a crucial role in the world of portable power banks, offering the perfect balance of power and efficiency. With its ideal energy density, it ensures your devices stay charged longer, wherever you go.
The 21700 Battery Cell Has Found Widespread Application in High-Performance Flashlights
The 21700 battery cell has found widespread application in high-performance flashlights, becoming a go-to choice for enthusiasts and professionals alike. With its superior energy density, the 21700 cell delivers ample power to keep flashlights running lon
The 21700 battery cell brings a host of advantages to the electric bicycle and electric motorcycle industries. In terms of power delivery, the 21700 cell provides robust support for vehicle performance. Electric bicycles and motorcycles require rapid burs
The 21700 Battery Cell Plays a Critical Role in Outdoor Power Banks
The 21700 battery cell plays a critical role in outdoor power banks, delivering superior performance and reliability. With its high energy density, it allows outdoor power banks to store significant amounts of energy in a compact form factor.
Please Feel Free to Contact Us if You Have any Questions
For product inquiries, support questions, or any other issues, please fill out the form below and a member of our team will get back to you within one business day.