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.
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.
The 21700 Battery Cell Plays a Crucial Role in Robotic Vacuum Cleaners
The 21700 battery cell plays a crucial role in robotic vacuum cleaners by providing reliable energy supply and performance. With its high energy density, the 21700 cell ensures that robotic vacuum cleaners have ample power to operate continuously across a
The 21700 Battery Cell Plays a Vital Role in the Drone Industry
The 21700 battery cell plays a vital role in the drone industry, offering exceptional performance and reliability. Its high energy density enables drones to store a significant amount of power within a compact and lightweight design, addressing the critic
The 21700 Battery Cell Plays a Pivotal Role in Powering Small Electric Tools
The 21700 battery cell plays a pivotal role in powering small electric tools such as drills, electric screwdrivers, and more. In terms of power output, these tools often require instantaneous bursts of high power during operation.
The 21700 Battery Cell Has Found Extensive Application in Gardening Tools
The 21700 battery cell has found extensive application in gardening tools, offering significant advantages in performance, efficiency, and design.
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.