The 40140 15Ah Sodium Ion Battery Cell is a high-performance energy storage solution designed for solar power systems and other renewable energy applications. With its cylindrical form factor and robust construction, this battery delivers reliable power in various environmental conditions.

Featuring a nominal capacity of 15Ah and nominal voltage of 3V, this sodium ion battery provides excellent energy density and stable performance. The advanced sodium-ion technology offers several advantages including enhanced safety, longer cycle life, and better performance in extreme temperatures compared to traditional lithium-ion batteries.

This battery cell operates efficiently across a wide temperature range from -40°C to 60°C, making it suitable for outdoor applications in various climates. The 40140 size (40.5mm diameter × 140mm height) offers a compact yet powerful energy storage solution for space-constrained installations.
With a cycle life exceeding 2000 cycles and low internal resistance (≤0.50mΩ), this battery maintains consistent performance throughout its service life. The 1C continuous discharge current and 3C maximum discharge current (for ≤30s) provide flexible power delivery options for different system requirements.

Our factory offers comprehensive OEM/ODM services, allowing customers to customize battery specifications, branding, and packaging according to their specific needs. The product comes with multiple international certifications including ISO9001, CE, ROHS, and UN38.3, ensuring quality and safety compliance for global markets.

Ideal for solar energy storage systems, this sodium ion battery represents a sustainable and cost-effective alternative to conventional energy storage solutions. The technology offers improved environmental friendliness and resource sustainability compared to lithium-based batteries.

Great experience overall. The shipping was surprisingly fast, and the package arrived securely without any damage. The quality of the battery cells appears to be solid based on the initial inspection; they feel well-constructed and match the described specifications. Customer service was responsive and helpful when I had a pre-sale inquiry, providing clear information promptly. While I haven't integrated them into a system yet for long-term testing, the first impressions regarding the physical product and the transactional process are very positive. The communication was straightforward, and the whole process from order to delivery was smooth. It's reassuring to deal directly with a factory, as it often implies better value and support. For anyone considering these for projects like solar energy storage, the initial logistics and service aspects seem reliable. The packaging was adequate, ensuring the items were protected during transit. I appreciate the efficient handling of the order and the professional demeanor of the support team. This foundational experience builds confidence in the supplier for future purchases. The delivery timeframe met expectations, which is crucial for project planning. Overall, a satisfactory procurement process focused on the core aspects of delivery, product build, and support.
Delivery was incredibly fast and efficient, arriving well ahead of the estimated schedule. The packaging was secure and professional, ensuring the products were perfectly protected during transit. I was thoroughly impressed with the logistical handling from start to finish. Regarding quality, the cells appear to be manufactured to a very high standard, with robust construction and clean terminals. They match the specifications provided, giving confidence in their performance for our intended applications. The service provided by the team was exceptional; communication was clear, prompt, and helpful throughout the entire ordering process. Any preliminary questions were answered comprehensively and with great patience. This overall experience—combining swift logistics, apparent high quality, and outstanding customer service—makes this supplier highly recommendable for anyone seeking reliable battery cells. The process was seamless from the initial inquiry to the moment the package arrived at our facility. We look forward to potential future orders based on this very positive first interaction. Definitely a smooth and professional operation that understands customer needs and delivers on its promises without any hassle or delay.
A truly impressive experience from start to finish. The logistics were handled with remarkable efficiency; the shipment arrived ahead of the estimated schedule, which was a fantastic surprise. The packaging was exceptionally secure and professional, ensuring every cell was perfectly protected during transit. Regarding quality, the cells appear to be manufactured to a very high standard. The build quality is robust, the terminals are clean and well-defined, and the initial voltage readings were exactly as specified. The service provided by the team was outstanding. Communication was clear, prompt, and helpful throughout the entire ordering process. Any pre-shipment inquiries were answered thoroughly and without delay. This level of professional service, combined with the seamless logistics and the evident initial quality of the products, makes for a highly satisfactory wholesale purchasing experience. I am very optimistic about integrating these cells into our systems and look forward to a potential long-term partnership based on this positive initial engagement.
Outstanding experience from start to finish. The logistics were handled with remarkable efficiency; the shipment arrived ahead of schedule and was packaged securely, ensuring the products were in perfect condition upon arrival. The quality of the battery cells is immediately apparent, with solid construction and precise specifications that match the description perfectly. Customer service was equally impressive, providing clear communication and prompt responses to all inquiries. Overall, a highly professional and reliable transaction that inspires confidence for future orders.
Keenly satisfied with the overall experience. The shipping was remarkably fast and the packaging was secure, ensuring the items arrived in perfect condition. Regarding the product quality, the cells appear to be very well-made and robust, exactly as described. The customer service team was prompt and professional in answering my pre-sale inquiries. This efficient logistics, apparent high quality, and responsive support make for a very positive wholesale purchasing process. I look forward to seeing the performance in our solar storage application and would certainly consider ordering again based on this initial transaction.