BAK 21700 5000mAh lithium-ion cell

The BAK 21700 5000mAh lithium-ion cell is a premium-grade rechargeable battery designed to meet the growing demand for high-capacity and high-performance energy solutions. With its advanced lithium-ion chemistry and robust construction, this cell delivers consistent and reliable power output, making it suitable for a wide range of applications.

One of the key highlights of this cell is its 5000mAh high capacity, which ensures longer runtime and fewer charging cycles. Compared to traditional 18650 cells, the 21700 format offers improved energy density, allowing users to build more efficient and compact battery packs. This makes it an excellent choice for modern electric vehicles such as e-bikes, e-scooters, and e-rickshaws, where performance and reliability are crucial.

The cell is engineered with low internal resistance, enabling efficient energy transfer and reduced heat generation during operation. This feature enhances overall battery performance and contributes to a longer lifespan. Additionally, the cell supports a stable voltage output, ensuring consistent power delivery across various devices and systems.

With a long cycle life of up to 1000 cycles, the BAK 21700 cell provides excellent durability and cost-effectiveness over time. It is widely used in solar energy storage systems, lithium battery packs, and backup power solutions, where dependable energy storage is essential.

Whether you are a battery pack manufacturer, EV builder, or working on DIY energy projects, the BAK 21700 5000mAh lithium-ion cell offers a reliable, efficient, and high-capacity solution for your power needs.

Key Features

• High capacity 5000mAh lithium-ion cell for long-lasting performance
• Stable voltage output for consistent power delivery
• High energy density suitable for EV and battery pack applications
• Long cycle life with reliable charge/discharge performance
• Low internal resistance for efficient energy flow
• Compact 21700 cylindrical design for easy integration

Applications

• Electric Vehicles (E-bike, E-scooter, E-rickshaw)
• Energy Storage Systems (ESS)
• Solar Battery Packs
• Power Tools & Backup Systems
• DIY Lithium Battery Packs

Specifications

• Brand: BAK
• Model: 21700 Cell
• Capacity: 5000mAh
• Nominal Voltage: 3.6V / 3.7V
• Cell Type: Lithium-ion
• Size: 21700 (21mm x 70mm approx.)
• Cycle Life: 800–1000 cycles (approx.)
• Charging Voltage: 4.2V
• Discharge Cut-off Voltage: 2.5V – 2.75V