EN
5000mAh High Capacity Provides longer runtime and stable energy output for high-drain applications.
40A Continuous Discharge Delivers strong and stable power for high-performance devices such as UAVs, power tools, robotics, and battery packs.
Ultra Low Internal Resistance ≤4mΩ Reduces heat generation and improves power efficiency during high current operation.
140A Pulse Discharge Capability Supports short high-power bursts required by demanding equipment.
Fast Charging Support (Up to 15A) Enables quicker recharge and reduced downtime.
Long Cycle Life Up to 500 charge cycles with ≥60% capacity retention, ensuring reliable long-term performance.
Wide Operating Temperature Range Discharge from -20°C to 60°C, maintaining 90% capacity even at -20°C.
Compact 21700 Form Factor Diameter ≤21.5mm, height ≤70.5mm, weight ≤75g, ideal for space-constrained battery pack designs.
High Temperature Storage Stability ≥90% capacity recovery after 30 days at 60°C storage.
Comprehensive Safety Testing Passed overcharge, short-circuit, crush, thermal shock, and mechanical stress tests for safe operation.
INR21700 50XG 3.7V 5000mAh 90A High Power Lithium Ion 21700 Battery Cell for Drone / Power Tools
Description
About Product
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About Us
Established in 2008, Cowon Technology has been focusing on customized battery solutions for global OEM and ODM customers. With more than 16 years of experience in the battery industry, we specialize in the design, development and manufacturing of lithium battery packs tailored to specific device requirements.
Our products are widely used in modern consumer electronics, industrial automation equipment, medical devices, security systems, Internet of Things IoT products, instrumentation, smart retail terminals and power energy storage applications. We provide flexible battery solutions covering different cell types, voltages, capacities, structures and protection systems to meet diverse application needs.
Cowon works closely with customers R and D and engineering teams, offering professional support from concept design, electrical and mechanical integration, sample development to mass production. To date, we have completed over 5000 successful customized projects and delivered more than 100000 battery solutions to customers worldwide. Our technical collaboration has helped customers obtain over 80 national patents, reflecting our strong engineering capability and innovation driven approach.
Quality and reliability are at the core of our operations. We implement strict quality control throughout the entire production process, from material selection and incoming inspection to assembly, testing and final delivery. Our products are designed to meet international standards and are suitable for global market applications.
Today, Cowon Technology has grown into a trusted partner in the customized battery industry, recognized for stable quality, flexible ODM capability, efficient communication and long term customer cooperation. We remain committed to continuous innovation, reliable manufacturing and customer satisfaction, helping our partners bring competitive products to market.
FAQs
Is this Battery GRADE-A, Brand NEW?
It is Grade A, Brand new, the QR code is intact.
Can you test each battery PRIOR to shipping?
We will measure each battery Voltage, Internal Resistance and Capacity before shipping.
Are the batteries come with bus bars and nuts?
This price come with Bus bars and Nuts, each Battery will offer 1 set Bus bar and Nuts (e.g., If buy 4pcs battery, we will send 4pcs cells with 4pcs bus bars and 8pcs nuts). If need extra more please contact us directly.
How about the Warranty?
We offer 5 years warranty for lifepo4 battery, and 3 years for Nmc battery. For damaged due to non-human factors, we will refund or send new battery for replacement after providing pictures or videos for evidence.
Will the package tough enough to protect the cells?
The Battery will be packed in good condition with the thicker PE Foam, then put into the 5 layers drop-resistant carton.
How to proceed an order for lithium ion battery?
We accept Alibaba trade assurance order online. Or you can provide your shipping information to us, we will make the online order for you.
How can I do if I need more help for the order?
You can chat our sales online or send inquiry email, our Sales Team will reply to you ASAP
Which shipping method you usually take?
Train/Sea DDP, Express, We can also ship with your own shipping agent.
