JOINSUN has more than 10 years of experience in the lithium battery industry with fully automated production lines.
No matter where you need to use lithium batteries, we can provide a one-stop solution according to your needs!
From communication to order confirmation, product production and processing and after-sales have exclusive engineers and you docking!
In outdoor activities, safe, reliable and durable lithium batteries will bring you a different experience!



We can provide RVs, boats, golf carts, forklifts or motorized scooters looking for a reliable, efficient and long-lasting energy solution!



The company fully seizes development opportunities, accelerates technological progress, enhances product branding and market competitiveness, improves R&D and innovation capabilities, and achieves strategic development goals. The technology center implements a three-level management system.
Our strength lies in the dedication and expertise of our diverse team. Each member of our team is trained in specialized skills to ensure that every battery we produce is up to standard, safe and durable!
Zigong Joinsun Technology Co., Ltd., established in September 2022, has a registered capital of 60 million yuan and covers an area of 100 acres. The company currently employs more than 200 people, including over 20 full-time and part-time R&D personnel. It owns 8 advanced coating production lines, 3 fully automated liquid injection production lines, 10 sets of fully automated electrode sheet rolling and winding integrated machines, 6 fully automated integrated welding machine production lines, and over 300 sets of formation and capacity testing cabinets, meeting the daily production capacity requirement of 20GWh.
Our lithium battery engineers and sales representatives connect with global customers.
We have listed some questions you may ask. If you have more inquiries about our products, you can send an inquiry to contact us.
The biggest disadvantage of lithium-ion batteries is their susceptibility to thermal runaway, which can lead to overheating or fires if not properly managed. Additionally, they can be more expensive upfront compared to traditional lead-acid batteries and require specific charging equipment.
What shortens the life of lithium batteries?
Factors that shorten the life of lithium batteries include excessive heat, overcharging, deep discharging below recommended levels, high discharge rates, and poor-quality chargers. Regular maintenance and proper charging practices can help extend their lifespan significantly.
The title of the number one lithium battery manufacturer often goes to CATL (Contemporary Amperex Technology Co., Limited), known for its significant market share in electric vehicle (EV) battery production. Other leading brands include LG Chem, Panasonic, and Samsung SDI, recognized for their quality and innovation.
The battery is equipped with a smart Battery Management System (BMS) rated at 250A, which monitors critical parameters such as overcurrent, overcharging, and overheating, providing protection against potential hazards and ensuring safe operation.
Absolutely! We accommodate custom requirements, including thickness, width, color, and surface finishes (such as brushed, mirror, or colored coatings). Share your specific needs, and we’ll provide you with the best solution.
As China’s largest private exporter of stainless steel, we offer unmatched production capacity and extensive experience in global markets. We prioritize customer satisfaction, providing high-quality products, flexible cooperation models, and prompt, reliable services to ensure your success.
When you drive your car in the boundless wilderness, the caravan comes from the family laughter; when you drive a yacht in the sparkling sea breaking waves, enjoy the sea breeze; when you drive a golf cart in the green course, focus on swinging the ball, have you ever thought that there is a kind of power for these wonderful moments to provide a more powerful, longer-lasting, and more reliable protection? That is our lithium batteries, customized for outdoor activities, so that your every trip is full of unlimited possibilities!
Please briefly explain your requirements, such as application scenarios, required dimensions, etc., so that we can provide you with a professional solution.
Please briefly explain your requirements, such as application scenarios, required dimensions, etc., so that we can provide you with a professional solution.