Inr21700 40p High Rate Lithium Ion Battery - China

Ultra-High Discharge Capacity

Instant High Current Output

Low Internal Resistance

High Power Performance

Strong Durability

The INR21700-40P High-Rate Lithium-Ion Battery is a premium-grade cylindrical cell designed for power-hungry applications such as electric mobility, cordless tools, energy storage systems, and industrial equipment.

With a nominal capacity of 4000mAh and continuous discharge rate of up to 10C, this battery delivers stable power output, exceptional thermal control, and long cycle life.

Manufactured by Zigong JOINSUN Technology Co., Ltd., the INR21700-40P is engineered using high-quality raw materials and advanced lithium-ion chemistry, ensuring excellent safety, low self-discharge, and superior current performance.

Application of INR21700-40P High-Rate Lithium-Ion Battery The INR21700-40P lithium-ion cell is specifically engineered for high-discharge applications, offering consistent performance under heavy loads.

With its 4000mAh capacity and up to 40A continuous discharge capability, it meets the demanding power needs of modern electric systems.

Below are the key industries and applications where this high-rate battery excels.

1 - Electric Mobility (E-Mobility) The 40P cell is widely used in: Electric bicycles and scooters Electric motorcycles Low-speed electric vehicles (LSEVs), such as delivery carts and warehouse AGVs Benefit: Higher energy density means fewer cells per pack, reducing weight and improving efficiency.

2 - Cordless Power Tools Drills, impact drivers, saws, grinders Industrial handheld devices Battery-powered construction equipment Why it's ideal: High discharge rate (up to 40A) ensures instant power burst and sustained runtime.

3 - Energy Storage Systems (ESS) Residential solar battery backup Portable power stations Modular battery banks for smart homes With long cycle life (≥1000 cycles), the 40P cell is well-suited for deep-cycle ESS usage.

4 - Smart Agriculture and Electric Farming Tools Battery-powered sprayers and tractors Irrigation controllers Field monitoring devices Rural and remote areas benefit from its reliability and low maintenance needs.

5 - Outdoor and Off-Grid Power Solutions Camping power banks Emergency backup batteries Portable solar generators Lightweight and compact design makes it ideal for mobile applications with demanding power needs.

6 - Military and Tactical Equipment Military radios Unmanned ground vehicles (UGVs) Night vision and surveillance gear Military-grade applications require high reliability, extreme temperature resistance, and fast discharge – all supported by the INR21700-40P.

7 - Aerospace and Low-Altitude Economy Drones and UAVs Electric aviation prototypes Aeronautical instrumentation Lightweight yet powerful, the 40P cell helps reduce payload stress while maximizing battery life.

Summary of Application Benefits Electric Mobility High energy density, compact form factor

Power Tools Instant torque, high amp discharge

Energy Storage Long cycle life, safe chemistry

Agriculture Low maintenance, robust output

Military Devices Rugged design, thermal stability

Off-Grid Power Portability, extended runtime Frequently Asked Questions (FAQ) Q1: What does “40P” stand for in INR21700-40P?

A: It indicates the model supports 4000mAh capacity and “P” refers to its high-power output profile.

Q2: Can this battery be used in high-drain tools like angle grinders?

A: Yes, with a 10C discharge rate, it is ideal for high-load cordless power tools.

Q3: Is the INR21700-40P rechargeable?

A: Yes, it’s a rechargeable lithium-ion battery with more than 1000 charge cycles.

Q4: What charger should I use with this battery?

A: Use a lithium-ion charger that supports 4.2V cutoff and current within manufacturer specs.

Q5: Can Joinsun customize this battery into packs for B2B applications?

A: Absolutely.

We offer customized solutions for mobility, industry, storage, and defense applications.

Joinsun provides full OEM/ODM customization services, including: Series and parallel pack assembly BMS (Battery Management System) integration Custom voltage/capacity output Casing, wiring, and connector options Q6: Contact Us for Custom Battery Solutions

Whether you're building a new energy storage system, electric vehicle, or smart device, Joinsun’s INR21700-40P is the right choice for high-drain, mission-critical applications.

Contact us now to discuss OEM/ODM battery solutions tailored to your industry.

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.