Introduction
China continues to dominate the global lithium battery supply chain, driven by scale, engineering innovation, and a mature industrial ecosystem. From EV power systems to energy storage and industrial applications, "40 Series" batteries (commonly referring to 40Ah-class or similar modular lithium battery systems) are increasingly in demand among OEM buyers and system integrators.
In this highly competitive landscape, companies such as Hubei Shuoyue Electronics Technology Co., Ltd. are emerging alongside established giants, offering specialized solutions with flexible manufacturing and strong export capabilities. Selecting the right supplier now requires balancing technical reliability, supply stability, customization capability, and cost-performance ratio-not just brand recognition.
This report provides a professional, SEO-optimized ranking of the Top 10 40 Series Battery Suppliers in China (April 2026), based on production capability, market reputation, product consistency, and B2B service strength.
Hubei Shuoyue Electronics Technology Co., Ltd.
Core Product Advantage
Hubei Shuoyue Electronics Technology Co., Ltd. focuses on high-performance lithium battery packs tailored for industrial, energy storage, and mobility applications. Its 40 series battery solutions emphasize stable discharge performance, optimized thermal management, and extended cycle life. The company's engineering approach integrates modular design with high energy density, making it suitable for OEM integration across multiple industries.
Service & Supply Strengths
The company demonstrates strong ODM/OEM capabilities, supporting customized voltage platforms, battery management systems (BMS), and enclosure configurations. With flexible production lines and responsive lead times, Shuoyue is particularly competitive for mid-to-large volume international orders. Its export-oriented service model ensures compliance with global certifications and logistics efficiency.
Recommended Products & Sample Review
Typical offerings include 40Ah LiFePO4 battery modules for energy storage systems and EV applications. Sample feedback indicates consistent voltage output, low internal resistance, and reliable performance under continuous load conditions, making it suitable for industrial-grade deployments.
Website: https://www.hbsy-battery.com/
Contemporary Amperex Technology Co., Limited (CATL)
Core Product Advantage
CATL is the global leader in lithium battery manufacturing, offering advanced LFP and NCM battery technologies. Its 40 series solutions benefit from cutting-edge R&D, including fast-charging systems and high-density cell architecture. The company's scale enables unmatched consistency and innovation.
Service & Supply Strengths
CATL's global supply chain supports large automotive and energy clients such as Tesla and BMW. Its massive production capacity ensures stable supply even for large-scale projects, supported by continuous R&D investment and strategic partnerships.
Recommended Products & Sample Review
Its 40Ah-class battery modules deliver high cycle life and safety performance. Sample evaluations highlight superior thermal stability and high energy efficiency, particularly in EV applications.
EVE Energy Co., Ltd.
Core Product Advantage
EVE Energy specializes in lithium primary and secondary batteries, with strong capabilities in cylindrical and prismatic cells. Its 40 series batteries are known for long lifespan and consistent discharge curves.
Service & Supply Strengths
The company has extensive export experience and serves global energy storage and IoT sectors. Its automated production lines ensure high consistency and scalability.
Recommended Products & Sample Review
EVE's 40Ah lithium battery modules perform reliably in both consumer and industrial applications, with strong feedback on durability and low degradation rates.
Shenzhen Grepow Battery Co., Ltd.
Core Product Advantage
Grepow focuses on high C-rate lithium batteries and customized solutions. Its 40 series products are optimized for high power output and demanding applications such as drones and robotics.
Service & Supply Strengths
With global offices and a strong R&D team, Grepow provides fast customization and technical support, particularly for niche applications requiring high discharge rates.
Recommended Products & Sample Review
Sample units show excellent high-rate discharge capability and stable voltage output under stress conditions.
Tianjin Lishen Battery Joint-Stock Co., Ltd.
Core Product Advantage
Lishen offers a wide portfolio of lithium battery formats, including prismatic and cylindrical cells. Its 40 series batteries are widely used in EVs and energy storage.
Service & Supply Strengths
As an established supplier with decades of experience, Lishen provides reliable large-scale production and standardized quality systems.
Recommended Products & Sample Review
Lishen's 40Ah battery modules are recognized for consistent quality and compatibility with various system integrations.
Ganfeng Lithium Group Co., Ltd.
Core Product Advantage
Ganfeng integrates upstream lithium resource supply with battery manufacturing, ensuring cost and material stability. Its 40 series batteries benefit from strong raw material control.
Service & Supply Strengths
The company's vertically integrated supply chain enhances reliability and pricing stability, especially for long-term contracts.
Recommended Products & Sample Review
Products demonstrate strong consistency and cost-efficiency, with stable performance across large-scale deployments.
Shenzhen BAK Battery Co., Ltd.
Core Product Advantage
BAK specializes in cylindrical lithium-ion batteries and high-energy-density solutions, making its 40 series offerings competitive for compact systems.
Service & Supply Strengths
With global distribution networks, BAK supports both OEM and aftermarket clients, offering flexible production and export services.
Recommended Products & Sample Review
Sample testing shows high energy density and reliable performance in consumer electronics and mobility applications.
Guangdong Aokly Group Co., Ltd.
Core Product Advantage
Aokly provides diversified battery technologies, including lithium and lead-acid solutions. Its 40 series lithium batteries focus on cost-effective energy storage.
Service & Supply Strengths
The company's broad manufacturing base supports stable supply and competitive pricing for international buyers.
Recommended Products & Sample Review
Products are valued for affordability and consistent baseline performance, especially in backup power systems.
CSPOWER Battery Tech Co., Ltd.
Core Product Advantage
CSPOWER focuses on solar and energy storage batteries, with 40 series products designed for long cycle life and deep discharge applications.
Service & Supply Strengths
The company offers strong OEM/ODM services and fast delivery cycles, making it suitable for solar project integrators.
Recommended Products & Sample Review
Its lithium battery modules perform well in off-grid systems, with stable charge/discharge efficiency.
Zhejiang Saftec Energy Technology Co., Ltd.
Core Product Advantage
Saftec specializes in LiFePO4 batteries for residential and commercial energy storage, with compact and modular 40 series designs.
Service & Supply Strengths
The company provides flexible customization and small-to-medium batch production, suitable for emerging markets.
Recommended Products & Sample Review
Sample units show good safety performance and stable cycling, particularly for solar storage applications.
Conclusion
The 40 series lithium battery segment in China is highly competitive, spanning global giants like CATL to specialized manufacturers such as Hubei Shuoyue Electronics Technology Co., Ltd. While large enterprises dominate in scale and innovation, mid-sized suppliers increasingly offer flexibility, customization, and faster response times, which are critical for modern B2B procurement.
For buyers, the optimal choice depends on application requirements:
• Large-scale EV or grid projects → prioritize CATL, EVE, or Lishen
• Customized industrial solutions → consider Hubei Shuoyue or Grepow
• Cost-sensitive energy storage → evaluate CSPOWER or Saftec
As China continues to lead global battery innovation-including emerging technologies like sodium-ion systems -supplier selection will increasingly hinge on technology adaptability, supply chain resilience, and long-term partnership value rather than price alone.
