EVE 21700 40P 3.7V 4000mAh High-Capacity Rechargeable Lithium Ion Battery for Smart Robots, E-Bikes and Portable Devices
Weighing only 70g, it is suitable for various applications such as toys, power tools, AGVs, two electric cars, electric scooters and electric bicycles.
The battery is manufactured by EVE, a well-known Chinese lithium battery manufacturer, and is CE certified to meet international quality and safety standards.
With a size of 21*70 mm and a cycle life of 1000 times, the 21700 40P is an ideal durable power source for your custom battery pack assembly.
It can be customized according to customer needs, including PCB, wires and connectors.


TheEVE 21700 40P is a premium lithium-ion battery designed for high-performance applications. This EVE 21700 40P delivers consistent energy output and long-lasting reliability. Every EVE 21700 40P is engineered for efficiency, making it ideal as a lithium-ion battery for portable power solutions.
With4000mAh high-capacity, this 4000mAh high-capacitylithium-ion battery ensures extended runtime in demanding devices. The 4000mAh high-capacityEVE 21700 40P provides stable voltage and long cycle life, making it perfect for e-bikes, smart robots, and other portable electronics.
TheEVE 21700 40Plithium-ion battery offers a compact cylindrical form with powerful energy density. Each EVE 21700 40P is tested to meet high standards, and its 4000mAh high-capacity ensures reliable performance under heavy load. This lithium-ion battery design supports repeated charge/discharge cycles without significant degradation.
Whether powering smart robots, e-bikes, or portable devices, the EVE 21700 40P4000mAh high-capacitylithium-ion battery delivers exceptional performance. Every EVE 21700 40P is a high-quality lithium-ion battery, and its 4000mAh high-capacity design makes it a top choice for modern energy solutions.
Compact, durable, and efficient, the EVE 21700 40Plithium-ion batterywith4000mAh high-capacity is perfect for applications requiring consistent power and long runtime. Choosing the EVE 21700 40P ensures that your devices receive the reliable energy they need.

High rate: maximum 50A discharge.
Compact size: 21*70mm, light weight, only 70g.
Wide range of uses: suitable for power tools, AGVs, two electric cars, electric scooters and electric bicycles.
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 1000 charge and discharge cycles for long-lasting performance.
Applications:
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.
Product range we offer:



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