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One Stop Wholesale 21700 Battery Factory

KET, established in 2010, is headquartered in Shenzhen, China, with a 7,000 square meter facility dedicated to providing solutions and manufacturing new energy products.

Our battery products are widely used in various applications, including home and commercial energy storage systems, forklift, ebike, golf cart, e-scooter, rv, and other fields.

With over 500 satisfied customers from various industries, we pride ourselves on delivering high-quality products and excellent customer service.

Our standard products have obtained certifications such as CE, FCC, UN38.3, and MSDS, and we are able to assist customers with certification applications for their customized 21700 battery.
One Stop Wholesale 21700 Battery Factory
Strict Quality Control Of Your 21700 Battery

Strict Quality Control Of Your 21700 Battery

We closely monitor the production of your order with the help of our experienced QC staff, who inspect the production line during the build process.

Our advanced equipment includes an automatic electric battery cell sorting machine, overcharge and shock tester, protection board tester, comprehensive tester, and high and low temperature test box, which allows us to rigorously test and verify the performance of all our products.

Our strict testing process includes incoming inspection, core capacity division, aging test, high and low temperature test, charge/discharge test, vibration test, and protection board test prior to shipment.

Our commitment to adhering to the ISO 9001 standard is a key differentiator for us and enables us to maintain our position as a leader in our industry.
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Your Best 21700 Batteries For Sale

KET is a professional wholesaler of customized 21700 battery cells and manufacturer of customized 21700 battery packs. With years of experience in the industry, KET is committed to providing high-quality and reliable battery solutions to meet the diverse needs of its customers. The company's advantages lie in its expertise in customizing battery cells and packs to meet specific requirements, its strict quality control process, and its competitive pricing. Additionally, KET offers excellent customer service and timely delivery to ensure customer satisfaction.

How To Custom Your 21700 Battery?

 Custom 21700 Battery

Note: Due to different custom requirements there will be different MOQ requirements, while the cost of raw materials for batteries has fluctuated a lot recently. So please contact us in time and get the latest 21700 battery quotes.

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What Is 21700 Battery?

The 21700 battery is a type of rechargeable lithium-ion battery that is commonly used in high-performance applications such as electric vehicles, power tools, and renewable energy systems. The name "21700" refers to the battery's dimensions, which are 21mm in diameter and 70mm in length.

Compared to other lithium-ion battery types such as 18650 or 26650 batteries, the 21700 battery offers a higher energy density, allowing it to store more energy in the same physical size. This makes it ideal for use in applications that require high power and long runtimes.

The 21700 battery is also known for its high discharge rate and long cycle life, meaning it can be charged and discharged many times without losing its capacity. These properties make the 21700 battery an excellent choice for demanding applications where reliability and performance are critical.

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Application of 21700 Battery

The 21700 Battery is used in a variety of high-performance application applications that request reliable, long-lasting power.Here are some examples:

1. Electric Vehicles: The 21700 Battery is used in Electric Cars, Buses, and other Vehicles Because of Its High Energy Density and Long Cycle Life.The Tesla Model 3, for Example, Uses A Large Number of 21700 Batteries to Power Its Electric Motor.

2. Power Tools: Many Power Tools, Including Cordless Drills, Saws, and Impact Wrenches, Use 21700 Batteries Because of their High Discharge Rate and Long Runtime.Thesis Batteries Allow Contractors and Diy Enthusia's to Work for Extended Periods Without Needing to Akharge Their Tools.

3. Renewable Energy Systems: The 21700 Battery is therefore used in Renewable Energy Systems Search as Solar Panels and Wind Turbine.Thesis Batteries Can Store Energy Generated During Periods of High Production and Release It During Periods of Low Production or High Demand.

4. Military and Aerospace Applications: The 21700 Battery is used in military and aerospace Applications Because of Its High Energy Density, Long Cycle Life, and Ability to with Stand Extreme Conditions.Thesis batteries are used to power unmanned aerial vehicles, satellites, and other military equipment.

Overall, the 21700 Battery is an Excellent Choice for Any Application that Requires High Power, Long Runtime, and Reliability.

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FAQ

Which incoterms you usually take?
Normally, train/sea will be DDP. And if you have your own shipping agent in China, EXW is supported (we can send your goods to your agent's warehouse).
What is your terms of packing?
Generally, we pack the goods in neutral brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes.
How can we pay?
You can pay via T/T, Paypal.
What is the difference between 20700 and 21700 battery?
The main difference between the 20700 and 21700 batteries is their physical size. The 20700 battery is 20mm in diameter and 70mm in length, while the 21700 battery is 21mm in diameter and 70mm in length.

Although the difference in size is only 1mm in diameter, it can make a significant difference in the battery's overall capacity and performance. Generally, the 21700 battery has a higher energy density and capacity than the 20700 battery due to its slightly larger size.

Another important difference is their compatibility with devices. While some devices are designed to use either 20700 or 21700 batteries, others may only be compatible with one of these two sizes. It is important to check the device's specifications before choosing which battery to use.

In terms of performance, both batteries offer high power output, long cycle life, and fast charging times. However, the 21700 battery is generally considered to be the more advanced technology and is becoming increasingly popular in high-performance applications such as electric vehicles, power tools, and renewable energy systems.
Can you offer the certifications for our 21700 battery?
We make some regular battery packs certificates every year. But most of our battery packs are customized for you. And we can help you to get the certification for your customized battery packs.
What is the warranty of your custom 21700 battery?
The warranty of our battery packs is one year. If you become our VIP, you can get extra 6 months.
Can you offer chargers of 21700 battery pack?
We do not provide chargers. However, if you have a need for a charger you can contact our sales to assist in purchasing on your behalf.
Can we make one custom 21700 battery?
Common materials are available to support one custom battery pack.However, if special materials are required, you will need to contact us for specific MOQ.
How to ship my custom 21700 battery?
The logistics companies we work with are strong. Currently, depending on your destination and order, we are able to provide options such as air freight, sea freight, express delivery, rail transport and trucking.
What is your MOQ of 21700 battery?
If it is our existing standard product, there is no moq requirement.
If it is a custom product, there is a MOQ requirement. However, the MOQ varies from material to material and you can contact us for specific information.