Shenzhen Genju Technology Co., LTD

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Large power battery
Large power battery
Large power battery
Large power battery
Large power battery

Bak 21700 45D 4500mAh 3.6V High-Rate Cylindrical Lithium Ion Battery Cell for E-Bikes Power Tools and Energy Packs

BAK 2170 45D
BAK 2170 45D is a high quality 21700 4500mah 60A discharge Li-ion rechargeable lithium battery with a 1 year warranty.

Weighing only 69g, it is suitable for various applications such as power tools, AGV, two electric cars, electric scooters and electric bike battery packs.

The battery is manufactured by BAK a well-known Chinese lithium battery manufacturer, and is CE certified to meet international quality and safety standards.

With a size of 21*70mm and a cycle life of 600 times, the BAK 2170 45D is an ideal durable power source for your custom battery pack assembly.

It can be customized with a variety of custom terms, including PCB, wires and connectors.
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Alibaba purchase link:BAK 2170 45D BATTERY

The21700 4500mAh battery from BAK is a high-capacity, high-discharge lithium-ion cell engineered specifically for demanding applications. As a premium 21700 4500mAh battery, it combines long runtime with extreme current delivery, making it the ideal choice for any device requiring a reliable Large power battery solution. With a nominal capacity of 4500mAh and a discharge rate up to 60A, this 21700 4500mAh battery provides both energy density and burst power, which is essential for power-hungry equipment.

Designed as a true Large power battery, the BAK 21700-45D is built to sustain high currents without overheating, voltage sag, or performance degradation. Each Large power battery cell integrates an advanced electrode structure and low internal resistance to support continuous operation under heavy loads. The Large power battery architecture also includes robust safety features and high thermal stability, ensuring long cycle life and consistent output. Whether for industrial-grade drills or professional cutting tools, the Large power battery performance of this cell ensures maximum efficiency.

For integrators and OEMs, the Power Tool Battery Pack market demands compact, reliable, and powerful energy solutions. The BAK 21700-45D fits this role perfectly, being specifically developed for Power Tool Battery Pack configurations that require high current output and extended runtime. A Power Tool Battery Pack built with these cells can deliver peak torque, fast acceleration, and continuous operation even under the most rugged conditions. The structural integrity of the Power Tool Battery Pack is further enhanced by the cell’s mechanical stability and low impedance design.

The21700 4500mAh battery offers flexibility for series and parallel pack configurations, enabling scalable designs for custom Power Tool Battery Pack builds. Each 21700 4500mAh battery in a pack contributes to a high-output system capable of delivering industrial-grade performance. Because this 21700 4500mAh battery can handle high current with low temperature rise, it is ideal for fast-charging, regenerative braking, and high-draw usage scenarios found in electric power tools.

If you are building a Power Tool Battery Pack or looking for a dependable Large power battery for next-generation equipment, the BAK 21700 4500mAh battery is an optimal choice. It offers superior performance, long life, and outstanding safety features. Trusted by global tool manufacturers, this Large power battery represents the latest in lithium-ion cell technology. The BAK 21700-45D ensures your Power Tool Battery Pack stands out with unmatched power, stability, and efficiency.

In conclusion, whether your need is a reliable 21700 4500mAh battery, a high-drain Large power battery, or a robust Power Tool Battery Pack, the BAK 21700-45D delivers on all fronts—making it the professional’s choice for performance-critical applications.

Overview
 
Product Description:
 
Product Features:
 
High rate: maximum 60A discharge.
 
Compact size: 21*70mm, light weight, only 69g.
 
Versatile:suitable for power tools, AGV, two electric cars, electric scooters and electric bike battery packs.
 
Flexible Warranty: Warranty periods range from 3 months to 1 year, giving you peace of mind.
 
Rechargeable: Lithium-ion technology ensures long-term availability.
 
Customizable:Supports custom assembly with PCB, wire and connector options.
 
International Compliance: CE, RoHS, UN38.3 and other certifications ensure safety and quality.
 
Long Cycle Life: Withstands up to 600 charge and discharge cycles for long-lasting performance.
 
 
Applications:
 
BAK 2170 45D battery cells are used in a variety of fields due to their versatility and reliability.
Its main applications include:
 
Power Tools: Provides energy for a variety of cordless power tools for efficient operation.
 
Consumer Electronics: Supports a variety of portable electronic devices, ensuring long service life and stable performance.
 
E-Bike Battery Pack: Provides energy for electric bicycles, ensuring long driving distance and stable performance.
 
These applications prove the adaptability and reliability of BAK 2170 45D battery cells in different industries, making them a versatile choice for many electronic and transportation equipment.
 
About us:

Shenzhen Genju Technology Co., Ltd. has 16 years of experience in the lithium battery industry and is a high-tech enterprise integrating R&D, production and sales.

Specializing in the R&D and production of high-quality lithium-ion batteries, it has its own R&D brand SAFD and professional low-temperature lithium battery brand WORWORF.

The company has close cooperative relations with many universities and scientific research institutions, and has signed industry-university-research cooperation agreements with Central South University and Hunan University.

We will take the creation of safer, more stable and more cost-effective lithium battery products as the standard, and provide targeted R&D and private customization services according to the needs of different customers.

With excellent quality, stable supply and thoughtful service, we have strong competitiveness and stand out in the fierce market competition. We have established long-term and stable cooperative relations with many large enterprises and hope to become your partner.
 
 
The range of products we provide:

We provide a wide range of products, including 18650 batteries, 21700 batteries, lifepo4 cylindrical batteries, lithium primary batteries and OEM/ODM batteries. Our battery pack voltage ranges from 12V to 80V, and the capacity ranges from 7AH to 100AH. Can be customized according to customer needs.
 
 
Application:

Our batteries are used in smart two-wheel travel, power tools, smart homes, smart robots, drones, portable energy storage, medical equipment, industrial equipment and other fields. Whatever your needs for battery packs, our batteries can meet and exceed your expectations.
 
 
 
About Us:
 
1.Experience Genju has 16 years of experience in the battery industry.
 
2.Main Over the past 16 years, we have cooperated with hundreds of enterprises at home and abroad. We are recognized by most of our peers and customers.
 
3.Quality We strictly implement each inspection step, including appearance/short circuit quality inspection, electrical inspection, liability testing, etc. To ensure the quality of the product you receive, our batteries have passed UN38.3 certification, IEC62133 certification, MSDS certification, and CE certification. And do final inspection before shipment.
 
4.After-sales service We provide one year warranty. Our well-trained engineers and staff will respond to your product within 12 hours and help you solve any product problems patiently and sincerely.
 
5.OEM & ODM Any details (size, material, etc.) can be customized or changed according to your unique requirements.
 
FAQ:

1. Is the product original?
Yes, 100% original battery. We have been in the lithium battery industry for 16 years and never sell counterfeit batteries. We know that reputation is the way for a company to last long.
We support you to buy samples for testing. No matter how much we say, it is not as accurate as your own test.
 
2. Is there a minimum order quantity?
There is no limit, but the more quantity, the better the price. Welcome to consult the best price.
 
3. What products do we mainly sell?
18650, 21700, lifepo4 cylindrical battery, CR123A, lithium battery pack.
Tips: Due to the large number of products in the store, if you want to find the product you need quickly, you can contact us directly and send the product model you want.
Or send the product data you need, we can recommend suitable products for your reference.
 
4. How long is the delivery time?
Usually 2-5 days (because final inspection is required before delivery). We will arrange delivery for you as soon as possible.
 
5. Delivery terms
Accepted delivery terms: FOB, CIF, EXW, CIP, DDP;
 
6. If you are interested in our products, have any suggestions or needs, please contact us.