Top 5 21700 Battery Suppliers in 2024

By Gerald, Updated on August 30, 2024

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The 21700 battery is one of the powerful rechargeable cells commonly used in vapes, flashlights, power tools, and other high-drain devices. If you are looking for a 21700 battery for your device or want to know the top-performing brands in 2024, this article will discuss the top 5 21500 battery suppliers or manufacturers with key battery features to help you choose the right battery for the year.

Part 1. What is a 21700 battery?

A 21700 battery is a rechargeable cylindrical cell named after its size and dimensions. You can easily understand battery dimensions by 70mm length and 21mm diameter, making 21700. It is slightly larger than a popular 18650 cylindrical battery. However, an increased size means more energy and capacity to provide a long battery backup. Here are some of the highlighting features of a 21700 battery.

High battery capacity between 3000 to 6000mAh
A lightweight solution with high energy density
The voltage range is 3.7v nominal and 4.2v when full charge
The average cycle life is between 300 to 800

Your Ultimate Guide to Explore the 21700 Battery

Part 2. Importance of choosing the right 21700 battery supplier

Choosing the right 21700 battery supplier is essential for maximum performance, safety, and cost-effectiveness. Buying a 21700 battery establishes a relationship between customers and suppliers, which can be a positive when you select the right brand. Therefore, you should take time to evaluate the potential suppliers who match your battery requirements for the best battery experience. The right 21700 battery supplier is important in the following ways:

Product quality and performance
Safety standards
Customizations and flexibility
Supply chain reliability
Cost-effectiveness
Technical support

Part 3. Top 5 21700 battery factories 2024

Now it’s time to explore the top 5 21700 battery factories that have enough potential and capabilities to provide the best 21700 batteries in 2024.

Samsung SDI
Ufine Battery
Molicel
Golisi
Efest Power

1. Samsung SDI

Overview

Samsung SDI is a well-established South Korean company founded in 1970. Having a long history, the company has a wide range of lithium batteries, from small cylindrical cells, including 21700 batteries, to powerful ESS storages. Samsung SDI is very focused and investing heavily in R&D to manufacture innovative advanced batteries.

There are 2 manufacturing plants in South Korea and 4 worldwide, including China, Germany, and the United States. Samsung SDI supplies batteries to various industries, including electric vehicles, power tools, and energy storage systems, making it one of the most trusted names in the market.

Key Features of Samsung SDI 21700 Battery

High capacity, typically around 5000mAh
Good balance of price and specs
Wide temperature range beween -20 to -80°C
Excellent cycle life with over 500 cycles
Excellent when operated in series

2. Ufine Battery

Overview

Ufine Battery is a manufacturer of Chinese lithium-ion and lithium polymer batteries. It was established in 2008 and officially registered as Dongguan Ufine Electronic Technology Co., Ltd. it is the leading Chinese battery manufacturer in the country, which also offers battery customization services even when buying a single battery piece. Ufine is headquartered in Shenzhen; Ufine has made a name for itself in the global market with its high-quality products and customer-focused approach.

Ufine has designed and produced more than 1000 specs of batteries, including 21700 battery models. Currently, the company has onboarded 30 R&D specialists for the development of advanced battery technology, 200 production personnel, and a sales team of over 35 professionals. So you can consider Ufine as a reliable and efficient battery supplier for 21700 battery needs.

Key Features of Ufine 21700 Battery

High energy density
Can operate in extreme temperature
Long cycle life of over 300+ cycles
Stable discharge rate ranging from 0.2C to 0.5C
Internal resistance less than 30mΩ

3. Molicel

Overview

Molicel, a subsidiary of E-One Moli Energy Corporation, started its journey in 1977 with a physics lab at the University of British Columbia (UBC). Later on, in 1988, E-One Moli Energy Corporation was formed under the Taiwan Cement Corporation (TCC) group. Molicel is known for producing high-performance cylindrical cells, including the 21700 battery.

With a strong emphasis on innovation and quality, Molicel has become a preferred supplier for industries requiring reliable and powerful battery solutions. The company’s 21700 batteries are designed for high-drain applications. It is ideal for power tools, electric vehicles, and other demanding environments. Molicel’s dedication to research and development ensures that its batteries deliver consistent performance and safety.

Key Features of Molicel 21700 Battery

High continuous discharge rate up to 45A
Lightweight 70g in 4000mAh capacity
Long cycle life with reliable performance
Fast charging capability
Strong steel case with better heat management

4. Golisi

Overview

Golisi is a Chinese battery manufacturer and supplier. It was established in 2007 and headquartered in Shenzhen, Guangdong, China. Within a short period, the company has gained much popularity in small cylindrical batteries. Golisi has a production facility in China that is 10,000 square meters and is equipped with high-technology machinery. In manufacturing 18650, 20700, 26650, and 21700 battery models, Golisi follows strict quality control protocols to meet international standards. The company is now expanding its global reach by supplying its product to over 50 countries worldwide. Other than li-ion batteries, Golisi manufactures battery accessories, chargers, and portable power stations.

Key Features of Golisi 21700 Battery

High energy density in 3750mAh capacity
Stable performance even 30A load
Long cycle life exceeding 300 cycles
High-performance CDC technology
Hand-wearing wrap for better safety
More battery certifications CE, ROHS, FCC, MSDS, WEEE, UN38.3

5. Efest Power

Overview

Efest was established in 2009 and is headquartered in Shenzhen, Guangdong, China. The company is a major hub for electronic manufacturing and is famous for producing high-quality batteries and charging solutions. It is a joint venture company invested by DCB and an expert team from Hong Kong, Canada, and Japan with a focused approach to the lithium battery industry development.

Efest utilizes the latest international Manganese-based lithium battery technology backed by international standard certifications such as UL, CE, RoHS, UN38.3, MSDS, etc. If you are looking for an advanced technology-based 21700 battery, Efest will not let you down.

Key Features of Efest 21700 Battery

High capacity 4000 with 30A discharge rate
Wide temperature operating range
Long life of up to 500 cycles
Advanced technology and certifications

Part 4. Final words

The 21700 battery has gained popularity for its high capacity, energy density, and versatility, making it a top choice for a wide range of applications. When choosing the right supplier, it’s essential to consider factors like performance, safety, and cycle life to ensure you get the best battery for your needs.

Among the top 5 suppliers listed, Ufine Battery stands out for its customer-focused approach and the ability to customize batteries for unique requirements. However, other industry leaders like Samsung SDI, Efest Power, Golisi, and Molicel also offer exceptional products that cater to various applications. With this list, you can make an informed decision when selecting the right 21700 battery supplier in 2024.

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