Tenpower, officially named Jiangsu Tenpower Lithium Co., Ltd., is a leading manufacturer of cylindrical lithium-ion battery cells headquartered in Zhangjiagang, China. Established in 2006, the company supplies over 10 billion battery cells globally to more than 40 countries, servicing industries such as power tools, micro-mobility, and energy storage. A subsidiary of Azure Corporation (formerly Aucksun), Tenpower specializes in high-performance cylindrical cells, particularly the 18650 and 21700 formats, with innovative technologies designed for demanding applications. The company’s mission, “Empowering the Innovators,” reflects its commitment to making advanced battery technology accessible and scalable.
Tenpower holds a global market dominance as the second-largest supplier of lithium-ion cells for power tools, with notable clients like Bosch, Stanley Black & Decker, and Einhell. Driven by a compound annual growth rate (CAGR) exceeding 50% since 2011 and backed by over 10 billion Chinese Yuan in cumulative investments, Tenpower employs ~1,780 professionals, emphasizing innovation, quality, and sustainability across its operations.
Battery Technology
Tenpower excels in cylindrical lithium-ion cell design, offering products optimized for power density, thermal stability, and rapid charging. Its core products include the widely adopted 18650 and 21700 formats, which cater to diverse applications:
- 18650 Cells: These mid-to-high-power cells are standard in power tools, smart appliances, and robotics, providing reliable performance due to advanced LiFePO₄ (LFP) and NCM/NCA chemistries.
- 21700 Cells: Engineered for super-high-power applications like e-bikes, scooters, and robotics, these cells boast continuous discharge rates up to 45A, coupled with enhanced thermal management for safe operation under heavy loads.
- 26700 Cells: LFP cells tailored for reliability and longevity.
Tenpower’s R&D efforts focus on innovation, including sodium-ion batteries and process improvements to boost safety, energy density, and recyclability. The company maintains rigorous quality control via a multi-layer system managed by seven dedicated teams, ensuring consistency and compliance with industry standards. By specializing in cell manufacturing (excluding raw material processing or assembly into packs), Tenpower collaborates closely with original equipment manufacturers (OEMs) to tailor solutions for specific end-use requirements.
Recent Projects
In 2024, Tenpower advanced its production capacity through the completion of Phase 1 of its Malaysia-based plant, signaling strategic international expansion. Concurrently, the firm increased its Zhangjiagang facility capacity to 700 million cells annually through a 3.6 GWh expansion project backed by 1.26 billion Chinese Yuan. A standout initiative is the “Mission to Mars” collaboration with Einhell, supplying over 100 million cells for the German tool brand’s Power X-Change modular platform.
Investors
Tenpower operates under Azure Corporation, a rebranded entity from its previous parent company, Aucksun. Specific details about minority shareholders or venture capital investors are not publicly disclosed.
Business Details
Location: Zhangjiagang, China
Website: https://www.tenpowercell.com/
LinkedIn: https://www.linkedin.com/company/13355278
