Are you curious about the powerhouse behind your favorite devices? The 21700 battery has become a game-changer in energy storage, and understanding where these batteries come from is crucial. With numerous factories in China vying for your attention, knowing which ones stand out can save you time and money. Imagine having access to the best quality, reliability, and innovation in battery technology at your fingertips. Ready to discover the top 21700 battery bulk factories in China? Dive in with us as we explore the leaders in this booming industry and help you make informed choices!

21700 Battery Wholesale | 21700 Battery Cells | 21700 Cells Bulk – LEGEND

China 21700 Battery Suppliers, Manufacturers, Factory – Wholesale …

Product Details: 21700 Battery – Wholesale 4000mAh 8C, 21700 Battery Packs for Car Vacuum Cleaner, Odipie 5C 4000mAh Power Battery for Power Tools/E-bike, Odipie 21700 3.7V 4500mAh Cylindrical Li-ion Battery Cells

Technical Parameters:
– 4000mAh capacity
– 3.7V nominal voltage

Application Scenarios:
– Electric bikes
– Power tools

Pros:
– High capacity
– Versatile applications

Cons:
– Limited information on specific performance metrics
– Potential availability issues

Wholesale Cheap 21700 Battery & 21700 Battery – Buy in Bulk On … – DHgate

Product Details: Wholesale 21700 Battery available in various types and specifications.

Technical Parameters:
– Voltage: 3.7V
– Capacity: 4000mAh

Application Scenarios:
– Rechargeable battery for electronic devices
– Power source for electric vehicles

Pros:
– High capacity and performance
– Rechargeable and environmentally friendly

Cons:
– May require specific chargers
– Performance can vary by manufacturer

Wholesale Li-ion Batteries | Liion Wholesale – Tagged “21700” – Liion …

Product Details: Wholesale Li-ion Batteries – Tagged ‘21700’

Technical Parameters:
– Voltage: 3.7V
– Capacity: 3000mAh

Application Scenarios:
– Electric vehicles
– Portable electronics

Pros:
– High energy density
– Rechargeable

Cons:
– Requires specific chargers
– Potential safety risks if mishandled

SZX 2 x 21700/20700 Battery Case | Battery Junction

Product Details: SZX Battery Case – Holds 2 x 21700, 20700, or 18650 Batteries

Technical Parameters:
– Material: Plastic
– Dimensions: 3.18″ x 1.92″ x 1.02″

Application Scenarios:
– Organizing batteries for home use
– Storing backup batteries for lighting and industrial machines

Pros:
– Protects batteries against elements and accidental discharge
– Lightweight and portable design

Cons:
– Limited to storing only two batteries
– Not waterproof

JETBeam JR51 5100mAh 21700 Li-ion Battery | Battery Junction

Product Details: JETBeam JR51 21700 5100mAh 3.7V Protected High-Drain Lithium Ion (Li-ion) Button Top Battery with Built-In Micro USB Charging Port

Technical Parameters:
– Capacity: 5100mAh
– Voltage: 3.7V

Application Scenarios:
– High-powered flashlights
– Consumer electronics

Pros:
– Rechargeable many times over
– Built-in Micro-USB port for easy charging

Cons:
– Limited to compatible devices
– Requires specific charging cable

Bulk 21700 Batteries Wholesaler | High Quality & Safe – XTAR

Product Details: XTAR 21700 rechargeable cylindrical lithium-ion batteries, measuring 21mm by 70mm, designed for high-demand applications.

Technical Parameters:
– Max Capacity: 6000mAh
– Nominal Voltage: 3.6V

Application Scenarios:
– Medical equipment
– LED flashlights

Pros:
– High energy density and reliability
– Certified for safety with built-in protection circuits

Cons:
– Limited information on specific discharge rates
– Potentially higher cost compared to standard batteries

21700 Batteries – Battery Junction

Product Details: 21700 Lithium Ion Batteries available in various capacities and brands.

Technical Parameters:
– Voltage: 3.6V or 3.7V
– Capacity: Ranges from 3000mAh to 6000mAh

Application Scenarios:
– Used in high-drain devices like flashlights and power tools.
– Suitable for electric vehicles and portable electronics.

Pros:
– High energy density and capacity.
– Wide range of brands and specifications available.

Cons:
– May require specific chargers for certain models.
– Some models may not be protected against over-discharge.

What is a 21700 lithium-ion battery？ – Sunpower New Energy

Product Details: 21700 Lithium-ion Battery with various specifications including 3.6V 5000mAh, 3.6V 4000mAh, and 3.7V 3000mAh.

Technical Parameters:
– Diameter: 21mm
– Length: 70mm

Application Scenarios:
– Engine starting batteries
– Electric bicycles/motorcycles/scooters

Pros:
– High energy density and power output
– Strict quality control and safety testing

Cons:
– Higher charging and discharging temperatures
– Limited availability in some regions

Related Video

Comparison Table

Company	Product Details	Pros	Cons	Website
21700 Battery Wholesale	21700 Battery Cells	21700 Cells Bulk – LEGEND
China 21700 Battery Suppliers, Manufacturers, Factory – Wholesale …	21700 Battery – Wholesale 4000mAh 8C, 21700 Battery Packs for Car Vacuum Cleaner, Odipie 5C 4000mAh Power Battery for Power Tools/E-bike, Odipie 21700…	– High capacity – Versatile applications	– Limited information on specific performance metrics – Potential availability issues	www.liion-battery.com
Wholesale Cheap 21700 Battery & 21700 Battery – Buy in Bulk On … – DHgate	Wholesale 21700 Battery available in various types and specifications.	– High capacity and performance – Rechargeable and environmentally friendly	– May require specific chargers – Performance can vary by manufacturer	www.dhgate.com
Wholesale Li-ion Batteries	Liion Wholesale – Tagged “21700” – Liion …	Wholesale Li-ion Batteries – Tagged ‘21700’	– High energy density – Rechargeable	– Requires specific chargers – Potential safety risks if mishandled
SZX 2 x 21700/20700 Battery Case	Battery Junction	SZX Battery Case – Holds 2 x 21700, 20700, or 18650 Batteries	– Protects batteries against elements and accidental discharge – Lightweight and portable design	– Limited to storing only two batteries – Not waterproof
JETBeam JR51 5100mAh 21700 Li-ion Battery	Battery Junction	JETBeam JR51 21700 5100mAh 3.7V Protected High-Drain Lithium Ion (Li-ion) Button Top Battery with Built-In Micro USB Charging Port	– Rechargeable many times over – Built-in Micro-USB port for easy charging	– Limited to compatible devices – Requires specific charging cable
Bulk 21700 Batteries Wholesaler	High Quality & Safe – XTAR	XTAR 21700 rechargeable cylindrical lithium-ion batteries, measuring 21mm by 70mm, designed for high-demand applications.	– High energy density and reliability – Certified for safety with built-in protection circuits	– Limited information on specific discharge rates – Potentially higher cost compared to standard batteries
21700 Batteries – Battery Junction	21700 Lithium Ion Batteries available in various capacities and brands.	– High energy density and capacity. – Wide range of brands and specifications available.	– May require specific chargers for certain models. – Some models may not be protected against over-discharge.	www.batteryjunction.com
What is a 21700 lithium-ion battery？ – Sunpower New Energy	21700 Lithium-ion Battery with various specifications including 3.6V 5000mAh, 3.6V 4000mAh, and 3.7V 3000mAh.	– High energy density and power output – Strict quality control and safety testing	– Higher charging and discharging temperatures – Limited availability in some regions	www.sunpowernewenergy.com

Frequently Asked Questions (FAQs)

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

A 21700 battery is a cylindrical lithium-ion battery that measures 21mm in diameter and 70mm in height. 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.

What should I consider when choosing a 21700 battery factory in China?

When selecting a factory, consider factors like production capacity, quality control standards, certifications, and customer reviews. It’s also important to assess their ability to meet your specific requirements and timelines.

Are 21700 batteries safe to use?

Yes, 21700 batteries are generally safe when manufactured by reputable factories and used according to guidelines. Always ensure they have proper safety features, such as overcharge protection and thermal management, to minimize risks.

How can I ensure the quality of 21700 batteries from a factory?

To ensure quality, request samples for testing, check for certifications like ISO and CE, and inquire about their quality control processes. Visiting the factory or working with third-party inspection services can also help verify their standards.

What are the typical lead times for bulk orders of 21700 batteries?

Lead times can vary based on the factory and order size, but typically range from 4 to 12 weeks. It’s best to discuss timelines upfront and factor in potential delays due to shipping or production schedules.