Inr21700 40mf High Rate Lithium Ion Battery - China

Product Features:

Ultra-High Discharge Capacity

Instant High Current Output

Low Internal Resistance

High Power Performance

Strong Durability Application Areas Perfect for high-demand, high-safety use cases including: New national standard electric two-wheelers Electric scooters Electric motorcycles Electric mobility vehicles Other e-transportation and industrial power applications Explore more use cases in our Industry Applications Parameter：

Cell's Materials Phosphate Manganese Iron Lithium Doped with Ternary (30%)

Dimension (mm) Height: 70.8±0.2mm Diameter: 21.7±0.15mm

Nominal Voltage (V) 3.6V

Nominal Capacity (Ah) (0.2c) 4000mAh

Internal Resistance (mΩ) ≤22mΩ

Weight 66.2±1g

Max Discharge Rate 5C

Max Charge Rate 1C

Cycle life (DOD 80% 25℃) Charge: 0.5C, Discharge: 3C≥400 cycles

Charge: 0.5C, Discharge: 1C≥1000 cycles

Operating Temperature(Cell Surface) Charge: 0~45℃

Discharge: -10~60℃ Product Differentiation/Why Choose Joinsun: 01

Source Factory With comprehensive services and quality assurance, employing cutting-edge technology and high-end materials to provide a longer average lifespan.

02

Professional Team and Advanced Production Equipment A research and development team of over 30 people with 24 related patents.

The company covers an area of 100 acres, equipped with 8 advanced coating production lines, 3 fully automated injection lines, 10 sets of fully automatic sheet winding machines, 6 fully automatic integrated welding production lines, etc., meeting the production capacity demand of 20GWh per day, ensuring product efficiency and quality.

03

Sales Network and Services Jixin Technology has established offices in East China, South China, and an overseas affairs department, with sales networks gradually expanding to cover the Middle East and Southeast Asia regions.

Striving to become a leading supplier in the power battery and energy storage lithium battery markets, providing comprehensive service and support.

04

High Cost-Effectiveness Joinsun products provide high value for their cost.

05

Cost-Effective, Customizable Solutions OEM support and custom battery pack services with flexible packaging, testing, and support.

06

Certified for Safety & Quality Our batteries are UL, CE, GB31241-2022, and now EETA certified, ensuring full compliance and reliability.

Visit our Homepage to learn more about JOINSUN’s full product range.

Company Contact:

• Posted By: Zigong Joinsun co,. Ltd

• Phone: 0813-8258888

• Address: 6-45 Xinyuan Road, Yantan District, Zigong , Sichuan , China

• Email:

• Website: https://www.joinsunbattery.com/

• Business Description: Zigong JOINSUN Technology Co., Ltd. established in September 2022 with a registered capital of 60 million yuan, is a technology-oriented small and medium-sized enterprise specializing in the research and development, production, and sales of lithium-ion power batteries, ultra-large capacity energy storage batteries, battery management systems, rechargeable battery packs, and wind and photovoltaic energy storage systems.
  
  The company boasts an advanced technology and management team, as well as a comprehensive R&D, production, quality control, sales, and service system, holding a significant brand position in the field of power batteries.