Technical FAQs 4

What is a cylindrical lithium ion battery?

Cylindrical lithium-ion battery cells are a type of rechargeable battery commonly used in a wide range of electronic devices, electric vehicles, and energy storage systems. They are characterized by their cylindrical shape, standardized sizes, and high energy density, making them versatile and suitable for various applications.

What is a typical lithium ion battery size?

Typical lithium ion battery cell sizes—18650, 21700, and 26650—are named by their dimensions (e.g., 18 mm × 65 mm) and range in capacity from ~1,300 mAh up to 6,800 mAh. Compared to nickel metal hydride and other traditional chemistries, lithium-ion cells typically have a very low self-discharge rate.

How do I choose the best lithium-ion battery size?

Choosing the perfect lithium-ion battery size is essential for optimal performance. Factors like power capacity, voltage, physical dimensions, space constraints, environment, and compliance should be considered to ensure the best fit for your application.

What are the naming rules for lithium ion batteries?

The naming rules for cylindrical lithium-ion battery cells follows a standardized format based on the cell’s dimensions, and usually represented by a five-digit code, where each digit provides specific information about the cell’s dimensions. Here’s a breakdown of the representation: What does 18650 means?

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