INR21700-45P

INR21700-45P High-Rate Lithium-Ion Battery Features:

Ultra-High Discharge Capacity

Instant High Current Output

Low Internal Resistance

High Power Performance

Strong Durability

INR21700-45P High-Rate Lithium-Ion Battery Application Areas:

Fast-Charging Power Banks, Out-door power stations

INR21700-45P High-Rate Lithium-Ion Battery Parameter：

Cell's Materials	Pure Ternary 811
Dimension (mm)	Height: 70.8±0.2mm
Dimension (mm)	Diameter: 21.7±0.15mm
Nominal Voltage (V)	3.6V
Nominal Capacity (Ah) (0.2c)	4500mAh
Internal Resistance (mΩ)	≤22mΩ
Weight	68±1g
Max Discharge Rate	5C
Max Charge Rate	1C
Cycle life (DOD 80% 25℃)	Charge:2C, Discharge: 3C≥400 cycles
Operating Temperature (Cell Surface)	Charge: 0~45℃ Discharge: -10~60℃

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The INR21700-45P High-Rate Lithium-Ion Battery is a next-generation cylindrical lithium cell developed for high-current, high-performance applications. With a nominal capacity of 4500mAh, and capable of delivering continuous discharge current up to 10C (45A), it is engineered for durability, efficiency, and consistent energy output across demanding operational environments.

Manufactured by Zigong JOINSUN Technology Co., Ltd., this battery is built with advanced NCA/NCM chemistry and precision production processes at the Zigong Lithium-ion Battery R&D Center, ensuring enhanced thermal control, long lifespan, and high safety standards. Looking for high-performance battery cells for your devices or energy systems? Contact JOINSUN for OEM battery solutions, engineering support, and volume pricing.

INR21700-45P High-Rate Lithium-Ion Battery Application Scenarios:

The INR21700-45P is ideal for high-drain, mission-critical systems across various industries:

Electric Bicycles and Scooters
Cordless Power Tools and Industrial Devices
Residential and Commercial Energy Storage Systems
Smart Agricultural Equipment
Portable Power Packs and Outdoor Backup Systems
Military Electronics and Tactical Gear
UAVs, Drones, and Aerospace Prototypes

Use Case Example: In electric scooters, this cell offers longer ride time with fewer cells per pack, resulting in lighter designs without sacrificing power.

INR21700-45P High-Rate Lithium-Ion Battery Advantages

High Discharge Rate: Supports up to 45A continuous current for peak power demands.
Enhanced Capacity: 4500mAh output means extended runtime per cycle.
Stable Thermal Performance: Designed for high-load conditions with effective heat dissipation.
Reliable Cycle Life: Maintains over 80% capacity after 1000 charge-discharge cycles.
Safety-Compliant Design: Meets global shipping and electrical safety standards (UN38.3, MSDS, RoHS).

Why Choose Joinsun INR21700 Series?

Over 10 years of lithium battery R&D and manufacturing experience.
Strong engineering team with 30+ specialists and 4 industry PhDs.
In-house production and QC systems for performance consistency.
Customized battery pack assembly and BMS integration services.

Frequently Asked Questions (FAQ)

Q1: What is the difference between INR21700-45P and 40P?

A: The 45P offers 500mAh more capacity and higher pulse discharge performance, suitable for applications that need both high power and longer runtime.

Q2: Can the INR21700-45P be used in power tools?

A: Yes. Its high discharge rate and durability make it ideal for drills, grinders, and other cordless equipment.

Q3: How long does this battery last in a typical energy storage system?

A: Depending on usage, it can maintain over 80% capacity after 1000 cycles, equating to 3–5 years of regular daily use.

Q4: Is customization available for battery packs?

A: Yes, Joinsun offers pack design, BMS integration, series-parallel configurations, and OEM/ODM options. Request a Quote or email us directly at info@joinsunbattery.com. Our team will respond within 24 hours with a technical consultation.

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.

Industrial Packaging That Can Be Customized According to Requirements.

* Warranty Policy: Provide warranty and replacement service within a certain period of time to ensure the interests of customers.

* Important Notes: Please strictly follow the instructions provided in the product manual.

Customer Feedbacks

JOINSUN battery packs a powerful punch. lt has never failed to provide enough energy to keep our devices running smoothly. From our smartphone to my portable speakers, this battery has got it covered.

Jacob

JOINSUN has provided us with customized lithium battery solutions for our energy storage systems. Their batteries are UL and CE certified, ensuring safety and reliability. Fast shipping and great customer support!

John

We needed custom lithium battery packs for our electric bikes, and JOINSUN delivered exactly what we wanted. Their R&D team helped optimize the design, and the production was quick. Definitely our go-to supplier for long-term cooperation!

Sarah

We've been sourcing 18650 and 21700 battery packs from JOINSUN for over a year. The battery quality is excellent, with stable performance, high capacity, and long cycle life. Their team is very professional and responsive. Highly recommended!