Are you curious about the best 21700 battery manufacturers in China? With the growing demand for high-performance batteries, knowing where to source them can make all the difference for your projects. By comparing the top factories, you can ensure quality, reliability, and cost-effectiveness, ultimately boosting your business’s success. Imagine having access to the best options that meet your specific needs, saving you time and money. Ready to discover the leading players in the industry? Dive into our comprehensive comparison and empower your decision-making today!

Top 10 21700 battery manufacturers in China

Product Details: 21700 lithium-ion batteries manufactured by various companies in China.

Technical Parameters:
– Capacity: 4.5Ah to 5.0Ah
– Energy density: 200-260Wh/kg

Application Scenarios:
– New energy vehicles
– Consumer electronics

Pros:
– High specific energy
– Cost-effective transition from 18650 to 21700

Cons:
– Market readiness depends on R&D and manufacturing experience
– Potential delays in mass production

Top 10 NMC 21700 Battery Cell Manufacturers in China

Product Details: NMC 21700 cylindrical lithium-ion battery cells, 21mm in diameter and 70mm in height.

Technical Parameters:
– Nominal Voltage: 3.7V
– Energy Density: 250 Wh/kg
– Capacity: 4000-5000 mAh
– Cycle Life: 2000+ cycles

Application Scenarios:
– Electric vehicles (EVs)
– Power storage systems
– Portable electronics

Pros:
– Higher energy density and capacity compared to 18650 cells.
– Longer cycle life and faster charging capabilities.

Cons:
– Higher cost compared to other battery types.
– Increased risk of thermal runaway.

2024’s Leading 5 21700 Battery Suppliers & Factories

Product Details: 21700 rechargeable cylindrical battery

Technical Parameters:
– High capacity between 3000 to 6000mAh
– Voltage range: 3.7v nominal and 4.2v when fully charged

Application Scenarios:
– Vapes
– Power tools

Pros:
– High energy density
– Long cycle life between 300 to 800 cycles

Cons:
– Larger size compared to 18650 batteries
– Potential safety risks if not sourced from reputable suppliers

Top 10 LFP 21700 Battery Cell Manufacturers in China

Product Details: LFP 21700 battery cells based on Lithium Iron Phosphate (LiFePO4) chemistry, measuring 21mm in diameter and 70mm in length.

Technical Parameters:
– High energy density
– Long cycle life

Application Scenarios:
– Electric vehicles (EVs)
– Energy storage systems

Pros:
– Enhanced safety features
– Eco-friendly materials

Cons:
– Lower energy density compared to other lithium-ion chemistries
– Potentially higher manufacturing costs

21700 Lithium Ion Battery | collaborative China factory 2023

Product Details: 21700 Lithium Ion Battery with high rate performance, suitable for various applications.

Technical Parameters:
– Voltage: 3.6V
– Capacity: 5000mAh, Fast discharge rate: 6C, Fast charge rate: 2C

Application Scenarios:
– Electric vehicles
– Portable electronic devices

Pros:
– High energy density and performance
– Good storage and cycle life performance under high-temperature conditions

Cons:
– Requires careful handling due to high energy density
– Performance may degrade in extreme temperatures

China 18650 21700 Battery Manufacturers, Polymer Battery Suppliers …

Product Details: 18650 and 21700 lithium-ion batteries, polymer batteries, Ni-Mh Ni-Cd batteries, USB rechargeable batteries, LiFePo4 IFR batteries, and lithium titanate batteries.

Technical Parameters:
– Capacity: 5000mAh for 21700 Li-ion Battery
– Grade A quality with 12 months warranty

Application Scenarios:
– Power banks
– Electric vehicles

Pros:
– High-quality original batteries
– Fast shipping from Shenzhen or Hong Kong

Cons:
– Limited specific technical details provided
– Generic warranty terms

Molicel INR-21700-P42A – Lithium ion Battery Manufacturer and Supplier …

Product Details: Molicel INR-21700-P42A – Lithium ion battery with a nominal capacity of 4200mAh and nominal voltage of 3.6V.

Technical Parameters:
– Rated typical capacity: 4200mAh
– Continuous discharge current: 45A

Application Scenarios:
– Cordless tools such as screwdrivers and drills
– Electric vehicles and PHEVs

Pros:
– High discharge current capability
– Excellent cycle life of 500 cycles

Cons:
– Cycle life is reduced at high discharge rates
– Requires careful handling to avoid leakage or damage

Lithium-ion Battery Manufacturer & Li-ion Cell Supplier – Sunpower New …

Product Details: Sunpower New Energy offers a variety of lithium-ion batteries including 18650, 21700, 26700 LiFePO4, and Na-ion rechargeable batteries. Custom battery packs and BMS are also available.

Technical Parameters:
– High discharge rate: 3-10 times that of regular batteries
– Cycle life: exceeds 3000 cycles under 0.3C charge/discharge conditions

Application Scenarios:
– Power tools
– Electric bicycles and motorcycles

Pros:
– High capacity and fast charge/discharge rates
– Wide range of certifications ensuring safety and quality

Cons:
– Minimum order quantity of 2 pieces for retail
– Long lead time for bulk orders (7-45 workdays)

China brand lishen LR2170SF 21700 3.7v 4500mAh lithium battery cell – Vodno

Product Details: China brand lishen LR2170SF 21700 3.7v 4500mAh lithium battery cell

Technical Parameters:
– Model: Lishen LR2170SF
– Nominal capacity: 4500 mAh, Nominal voltage: 3.6 V, Max. continuous discharge cu…

Application Scenarios:
– Electric bicycles
– Energy storage systems

Pros:
– Higher energy capacity compared to 18650 batteries
– Cost reductions of 9% for battery pack systems

Cons:
– Increased weight and cost of individual cells
– Requires careful handling and storage

3.6V Samsung-INR21700-40T Battery – Lithium ion Battery Manufacturer …

Product Details: 3.6V Samsung-INR21700-40T Battery with a standard discharge capacity of 4000mAh.

Technical Parameters:
– Rated discharge capacity: 3900mAh
– Max. continuous discharge: 35A with temperature cut, 45A with 80°C temperature c…

Application Scenarios:
– High-performance devices requiring reliable power sources.
– Electric vehicles and portable electronics.

Pros:
– High capacity and discharge rates.
– Long cycle life of 250 cycles to 60% capacity.

Cons:
– Sensitive to temperature extremes.
– Requires careful handling and storage.

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Comparison Table

Company	Product Details	Pros	Cons	Website
Top 10 21700 battery manufacturers in China	21700 lithium-ion batteries manufactured by various companies in China.	– High specific energy – Cost-effective transition from 18650 to 21700	– Market readiness depends on R&D and manufacturing experience – Potential delays in mass production	www.takomabattery.com
Top 10 NMC 21700 Battery Cell Manufacturers in China	NMC 21700 cylindrical lithium-ion battery cells, 21mm in diameter and 70mm in height.	– Higher energy density and capacity compared to 18650 cells. – Longer cycle life and faster charging capabilities.	– Higher cost compared to other battery types. – Increased risk of thermal runaway.	keheng-battery.com
2024’s Leading 5 21700 Battery Suppliers & Factories	21700 rechargeable cylindrical battery	– High energy density – Long cycle life between 300 to 800 cycles	– Larger size compared to 18650 batteries – Potential safety risks if not sourced from reputable suppliers	www.ufinebattery.com
Top 10 LFP 21700 Battery Cell Manufacturers in China	LFP 21700 battery cells based on Lithium Iron Phosphate (LiFePO4) chemistry, measuring 21mm in diameter and 70mm in length.	– Enhanced safety features – Eco-friendly materials	– Lower energy density compared to other lithium-ion chemistries – Potentially higher manufacturing costs	keheng-battery.com
21700 Lithium Ion Battery	collaborative China factory 2023	21700 Lithium Ion Battery with high rate performance, suitable for various applications.	– High energy density and performance – Good storage and cycle life performance under high-temperature conditions	– Requires careful handling due to high energy density – Performance may degrade in extreme temperatures
China 18650 21700 Battery Manufacturers, Polymer Battery Suppliers …	18650 and 21700 lithium-ion batteries, polymer batteries, Ni-Mh Ni-Cd batteries, USB rechargeable batteries, LiFePo4 IFR batteries, and lithium titana…	– High-quality original batteries – Fast shipping from Shenzhen or Hong Kong	– Limited specific technical details provided – Generic warranty terms	www.geegoodbattery.com
Molicel INR-21700-P42A – Lithium ion Battery Manufacturer and Supplier …	Molicel INR-21700-P42A – Lithium ion battery with a nominal capacity of 4200mAh and nominal voltage of 3.6V.	– High discharge current capability – Excellent cycle life of 500 cycles	– Cycle life is reduced at high discharge rates – Requires careful handling to avoid leakage or damage	www.dnkpower.com
Lithium-ion Battery Manufacturer & Li-ion Cell Supplier – Sunpower New …	Sunpower New Energy offers a variety of lithium-ion batteries including 18650, 21700, 26700 LiFePO4, and Na-ion rechargeable batteries. Custom battery…	– High capacity and fast charge/discharge rates – Wide range of certifications ensuring safety and quality	– Minimum order quantity of 2 pieces for retail – Long lead time for bulk orders (7-45 workdays)	www.sunpowernewenergy.com
China brand lishen LR2170SF 21700 3.7v 4500mAh lithium battery cell – Vodno	China brand lishen LR2170SF 21700 3.7v 4500mAh lithium battery cell	– Higher energy capacity compared to 18650 batteries – Cost reductions of 9% for battery pack systems	– Increased weight and cost of individual cells – Requires careful handling and storage	www.vodnobattery.com
3.6V Samsung-INR21700-40T Battery – Lithium ion Battery Manufacturer …	3.6V Samsung-INR21700-40T Battery with a standard discharge capacity of 4000mAh.	– High capacity and discharge rates. – Long cycle life of 250 cycles to 60% capacity.	– Sensitive to temperature extremes. – Requires careful handling and storage.	www.dnkpower.com

Frequently Asked Questions (FAQs)

What is a 21700 battery, and why is it popular?

A 21700 battery is a lithium-ion rechargeable battery that measures 21mm in diameter and 70mm in length. It’s popular due to its high energy density, longer lifespan, and ability to deliver more power compared to smaller batteries. This makes it ideal for electric vehicles, power tools, and various consumer electronics.

How do I choose a reliable 21700 battery factory in China?

To choose a reliable factory, look for certifications like ISO and CE, check their production capacity, and read customer reviews. It’s also helpful to request samples and visit the factory if possible to assess their quality control processes.

What are the common applications of 21700 batteries?

21700 batteries are commonly used in electric vehicles, e-bikes, power tools, and portable electronics. Their high capacity and efficiency make them suitable for applications requiring long-lasting power and quick charging.

Are 21700 batteries safe to use?

Yes, 21700 batteries are generally safe when manufactured by reputable factories and used according to guidelines. Always ensure you use compatible chargers and avoid exposing them to extreme temperatures or physical damage to minimize risks.

What is the typical lifespan of a 21700 battery?

The typical lifespan of a 21700 battery is around 500 to 1,000 charge cycles, depending on usage and care. Proper maintenance, such as avoiding deep discharges and extreme temperatures, can help extend its lifespan significantly.