Introduction to INR18650 Lithium-Ion Battery

The INR18650 lithium-ion battery is one of the most widely used cylindrical battery formats in the global energy storage and power supply market. Known for its balanced performance, safety, and reliability, the INR18650 cell is extensively applied across consumer electronics, power tools, electric mobility, and energy storage systems.

As a mature and standardized battery type, the INR18650 cylindrical cell typically measures 18 mm in diameter and 65 mm in length, offering a nominal voltage of 3.6V–3.7V. By using Nickel-Rich (INR) cathode chemistry, these lithium-ion batteries achieve an optimal balance between energy density, discharge capability, and thermal stability, making them suitable for both high-drain and long-cycle applications.

As a trusted INR18650 lithium-ion battery supplier, choosing high-quality cells from an experienced manufacturer ensures consistent performance, compliance with international standards, and long-term reliability. Whether for mass production or customized battery solutions, INR18650 cylindrical batteries continue to play a critical role in modern power and energy storage applications.

18650 Battery Parameter:

Key Features of the Joinsun INR18650 Lithium-Ion Battery

As an experienced 18650 Battery Manufacturer, Joinsun ensures that our INR18650 lithium-ion batteries deliver reliable, long-lasting performance. The key features of these 18650 Battery Packs include:

1. Capacity: Ranging from 2000mAh to 3400mAh, suitable for small and medium-sized electronic devices.

2. Voltage: The standard voltage is 3.6V, providing stable power.

3. Charging Speed: When used with a charging management system, it can achieve QC3.0 fast charging.

4. Cycle Life: Rigorously tested for at least 400 charge-discharge cycles, ensuring durability.

5. Safety Protection: Equipped with multiple safety protection circuits, including overcharge, over-discharge, overheat, and short circuit protection, ensuring safe usage.

6. Stylish Design: Features a steel shell with excellent corrosion resistance and a stylish appearance.

7. Environmental Adaptability: Operates normally within a temperature range of -10°C to 60°C, adapting well to various harsh environments.

8. Environmentally Friendly Materials: Free of environmentally harmful elements such as cadmium, lead, and mercury, compliant with European RoHS regulations, ensuring a green and eco-friendly battery.

9. Lightweight and Portable: Compact design and a weight of up to 47 grams make it easy to carry around without adding extra burden.

10. Versatile Compatibility: Compatible with the majority of electric bikes, household appliances, consumer electronics, and gardening tools on the market.

11. Low Self-Discharge: Self-discharge rate of around 3% after one month of being fully charged at room temperature.

12. High Energy Density: Offers a maximum energy density of 272Wh/kg, providing longer battery life.l

13. No Memory Effect: Can be charged anytime and anywhere without the need to discharge the battery before each charge, unlike nickel-cadmium and nickel-metal hydride batteries.

Applications of Joinsun INR18650 Cylindrical Lithium-Ion Cells

Cylindrical 18650 lithium-ion cells are versatile and can be used in a wide range of applications. Some of the key sectors where Joinsun 18650 Battery Packs are applied include:

• Electric Vehicles: Suitable for electric bikes, scooters, hoverboards, and wheelchairs.

• Energy Storage: Used in power banks, small-scale energy storage solutions, and consumer electronics.

• Household Appliances: Ideal for small household appliances such as security devices, lighting fixtures, and more.

• Power Tools: Perfect for small gardening tools and other portable devices.

Why Choose Joinsun for Your 18650 Battery Needs?

Joinsun is a trusted 18650 Battery Manufacturer with years of expertise in producing high-quality cylindrical 18650 lithium-ion cells. 

·Optimized Performance: Joinsun’s INR18650 cells are manufactured with premium NMC chemistry, delivering balanced energy density and excellent discharge capability for a wide range of use cases.

· Source Factory with Comprehensive Service: As a 18650 Battery Manufacturer, Joinsun provides a one-stop solution with advanced technology, high-end materials, and strong quality assurance.

· Proven Safety: With nearly 2 billion instances of energy support provided globally, Joinsun has a track record of safety and reliability.

· Longer Cycle Life: Our INR18650 lithium-ion batteries provide a longer cycle life compared to traditional batteries, ensuring a longer service life for your devices.

· High Cost-Effectiveness: Joinsun products provide excellent value for money, making them a cost-effective solution for power needs.

· Broad Application Compatibility: Suitable for electric vehicles (e-bikes, scooters), energy storage systems, consumer electronics, power tools, and more.

· OEM & Supplier Support: As a reliable INR18650 battery supplier, Joinsun offers OEM support and custom configuration options tailored to specific project 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 manual.Product.

Choose Joinsun for Your 18650 Battery Solutions

As a professional 18650 and 21700 battery manufacturer, Joinsun ensures consistent product quality from cell production to end-use performance. Our integrated supply chain and dedicated technical support make us a preferred partner for OEMs, distributors, and system integrators seeking dependable cylindrical battery solutions.