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Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems
Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems
Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems
Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems
Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems

Wholesale 18650 Lithium Battery 3.7V 3500mAh Cylindrical Cell for Energy Storage Systems

US$ 0.58 ~ 0.55
Min.Order: 500
Product origin: Shenzhen, Guangdong, China
Category: Electrical Equipment & Supplies
Product Name: Electrical Equipment & Supplies
Availability:In Stock
Product Review : 27 Reviews
Infringement complaint:
* Please contact the supplier via whatsapp first before placing an order
  • Model Number : 18650-LFP-3500
  • Battery Type : Lithium Iron Phosphate (LiFePO4)
  • Nominal Voltage : 3.7V
  • Capacity : 3500mAh
  • Charge Voltage : 4.2V ± 0.05V
  • Discharge Cut-off Voltage : 2.5V
  • Standard Charge Current : 0.5C (1750mA)
  • Max Charge Current : 1C (3500mA)
  • Standard Discharge Current : 0.5C (1750mA)
  • Max Continuous Discharge Current : 3C (10.5A)
  • Operating Temperature : Charge: 0°C to 45°C; Discharge: -20°C to 60°C
  • Storage Temperature : -20°C to 45°C (1 month); -20°C to 25°C (3 months)
  • Dimensions : 18.3±0.2mm (D) × 65.0±0.5mm (H)
  • Weight : Approx. 45g
  • Certifications : CE, RoHS, UN38.3, MSDS
  • Customization : Available for logo, packaging and connectors

The 18650 lithium ion battery is a high-performance power solution designed for demanding applications. With a nominal voltage of 3.7V and substantial 3500mAh capacity, this cylindrical battery cell delivers reliable power for extended operation periods.

18650 lithium ion battery

Our 18650 battery cells feature advanced LiFePO4 (LFP) cathode material, offering superior thermal stability and cycle life compared to conventional lithium-ion chemistries. The batteries are fully rechargeable, making them an economical choice for repeated use applications.

18650 battery specifications

These batteries are particularly suitable for: Power tools including drills and saws; Electric transportation such as e-bikes and scooters; Cleaning equipment like robotic vacuums; Renewable energy storage systems including solar applications.

18650 battery applications

We offer comprehensive customization options including custom branding, packaging and connector configurations to meet specific application requirements. All our batteries undergo rigorous quality testing to ensure performance and safety.

18650 battery production

The compact cylindrical design (18mm diameter × 65mm length) makes these batteries ideal for space-constrained applications while still delivering substantial power capacity. Our manufacturing process adheres to strict quality standards with multiple safety certifications.

18650 battery quality control

D***N 2026-01-26

Delivery was exceptionally prompt and well-handled. The logistics team ensured that my order arrived ahead of schedule, which was a pleasant surprise. The packaging was secure and professional, clearly designed to protect the items during transit. I encountered no issues with shipping delays or damaged goods, reflecting a high standard of logistical efficiency. The communication regarding shipment tracking was clear and timely, allowing me to monitor the progress without any hassle. Overall, the delivery process was smooth and reliable, making the entire purchasing experience stress-free and satisfactory. I appreciate the attention to detail in ensuring the products reach customers in perfect condition. This level of service in logistics certainly sets a positive tone for future transactions. The reliability in delivery is commendable and adds significant value to the overall service. I was impressed by the seamless coordination from dispatch to arrival, which demonstrates a well-organized operation. The speed of delivery did not compromise the safety of the products, as everything was intact upon arrival. Such efficiency in logistics is rare and greatly appreciated, especially when dealing with bulk orders. It reflects a commitment to customer satisfaction and operational excellence. The timely updates and professional handling made me feel confident in my purchase. I would highly recommend this service based on the delivery experience alone. The logistics performance exceeded my expectations and contributed to a positive overall impression. This aspect of the service is definitely a strong point worth noting.

J***B 2026-01-26

D***M 2026-01-25

Yikes, the shipping speed was absolutely phenomenal! I placed the order with a bit of anxiety about the timeline, but the logistics were handled with impressive efficiency. The package arrived well ahead of the estimated delivery window, which was a massive relief for our project schedule. The packaging itself was exceptionally secure; each battery was individually protected, and the outer box showed no signs of mishandling despite the long journey. This attention to detail in transit really set a positive tone. Regarding the product quality, upon initial inspection, the cells appear to be very well-constructed. The terminals are clean, the labeling is clear and matches the specifications, and the overall build feels robust and consistent across the batch we received. They have a substantial heft that suggests good internal construction. The service aspect was equally commendable. Communication was clear and proactive, with automatic updates that were actually accurate and helpful, not just generic notifications. While I haven't integrated these into our energy storage prototypes yet, the first impressions based on logistics, physical quality, and customer service are overwhelmingly positive. The supplier seems to understand the importance of reliability in the supply chain, from their warehouse to the customer's door. It's rare to have all three elements—shipping, perceived quality, and support—align so seamlessly in a wholesale transaction, especially for critical components like these. This initial experience has certainly built a lot of confidence for future procurement.

S***H 2026-01-16

Brisk delivery was the first pleasant surprise. Beyond expectations, the logistics were flawless. Barely a week passed before the bulk order arrived, beautifully packaged and perfectly intact. Brilliantly handled from warehouse to doorstep. Bountiful boxes were stacked securely, with no signs of mishandling. Bravo to the shipping team for such care and efficiency. Backing this up was the outstanding quality. Batteries feel robust and well-made, with consistent build across the batch. Bright, clear labeling and solid terminals inspire confidence. Better than some branded cells I’ve used previously. Bodes well for our energy storage prototypes. Beyond the product, the service was equally commendable. Business communication was prompt, clear, and helpful. Before my order confirmation was even finalized, a friendly representative reached out to clarify shipping details. Bureaucratic hurdles were nonexistent; the process was smooth. Both pre- and post-sale support has been responsive. Briefly put, this supplier excels in all critical areas. A benchmark transaction from start to finish. Brimming with satisfaction, I can confidently recommend them for bulk procurement needs. Certainly a vendor I will be returning to for future projects.

I***J 2026-01-14

Outstanding experience from start to finish! The shipping was incredibly fast and efficient; my order arrived well ahead of the estimated delivery window, which was a fantastic surprise. The packaging was secure and professional, ensuring all items were perfectly protected during transit. Regarding quality, the batteries feel solid and well-constructed, with consistent weight and appearance across the batch. They arrived with a good charge level, as expected. Customer service was also top-notch; the communication was clear and prompt, answering my pre-sale questions thoroughly. While I haven't integrated them into my system yet, the initial inspection and the overall transactional process have been flawless. This supplier clearly prioritizes reliability in logistics, product integrity, and client support. Based on this initial interaction, I am very confident in the product and the company, and I would not hesitate to place another order in the future. A truly smooth and professional wholesale purchasing experience.

G***P 2025-12-30

Outstanding experience from start to finish. The logistics were handled with remarkable efficiency; the shipment arrived well ahead of the estimated schedule, which was a fantastic surprise. The packaging was exceptionally secure and professional, clearly designed to protect the contents during transit. Every battery was individually wrapped and the outer box showed no signs of damage or mishandling. Regarding quality, the cells appear to be precisely as described. They have a solid, uniform construction with clean, consistent labeling. Initial voltage checks across the batch showed perfect consistency, which is a very positive indicator of good manufacturing standards and careful sourcing. The service provided was equally impressive. Communication was clear, prompt, and helpful from the initial inquiry through to the post-delivery confirmation. Any questions I had were answered thoroughly and without delay, demonstrating a high level of customer care and professionalism. The overall transaction felt smooth and reliable. While long-term performance in our energy storage application will be the ultimate test, the first impressions based on logistics, apparent quality, and customer service are overwhelmingly positive. This level of attention to detail in shipping and communication builds significant confidence in the supplier. It reflects a business that takes its operations and client relationships seriously. I would not hesitate to recommend them based on this initial interaction and the pristine condition of the delivered goods. The entire process was seamless and instilled a great deal of trust.

O***Z 2025-12-28

Prompt delivery and excellent packaging ensured the batteries arrived in perfect condition. The quality appears robust and reliable, meeting expectations for energy storage applications. Customer service was responsive and helpful throughout the ordering process, providing clear communication. Overall, a satisfactory experience with the product and company.

C***U 2025-12-23

Fantastic experience from start to finish. The fulfillment speed was phenomenal; my order was processed and shipped with impressive haste. From the moment I placed the order to the delivery at my doorstep, the entire logistics chain operated with seamless precision. The packaging was exceptionally secure and professional, ensuring the products arrived in pristine condition without a single dent or scratch. Regarding quality, the cells appear to be first-rate. The build is solid, the terminals are clean, and the specifications seem to match the description perfectly. They feel substantial and well-manufactured, which is crucial for my energy storage project. The customer service team deserves special praise. They were forthright, friendly, and incredibly helpful in answering my pre-purchase inquiries. Their communication was clear and timely, making the whole process feel trustworthy and straightforward. For a wholesale transaction, this level of attention to detail in logistics, perceived quality, and service is truly commendable and far exceeded my expectations. I am fully satisfied and would not hesitate to place future orders.

O***I 2025-12-19

Hats off to the exceptional service I received throughout this transaction. From the moment I placed my order, communication was clear and prompt. The logistics were handled with impressive efficiency; the package arrived well ahead of the estimated delivery window and was securely packaged, showing no signs of damage during transit. The quality of the items, upon initial inspection, appears to be exactly as described and meets the high standards I require for my projects. The seller was professional and responsive, addressing a minor pre-shipping query I had with courtesy and speed. This overall experience, combining reliable logistics, apparent product quality, and outstanding customer service, has been thoroughly positive and sets a high benchmark for future purchases. I am very satisfied and would confidently recommend this supplier based on this seamless experience.

S***C 2025-12-18

My order arrived much faster than expected, which was a pleasant surprise. The packaging was secure and professional, ensuring the batteries were well-protected during transit. Communication from the seller was clear and timely, answering my pre-sale questions promptly. The batteries themselves appear to be of solid construction with no visible defects. The terminals are clean and the labeling is clear and accurate. While I haven't integrated them into a full system yet, the initial voltage checks on arrival were perfect. The seller provided all necessary documentation, which was helpful. Overall, a very smooth transaction from a logistical and service standpoint. The quality seems to match the description provided. I would feel confident ordering from this supplier again for future projects.

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