Cylindrical Lithium Ion Batteries


Cylindrical lithium ion batteries are widely used in various industries due to their high energy density, long lifespan, and reliability. Whether for renewable energy storage, electric vehicles, or consumer electronics, these batteries offer a dependable power solution. This article provides a comprehensive overview of their types, functions, and how to find trustworthy suppliers.


How to Find Reliable Cylindrical Lithium Ion Batteries from China in 2025


China remains a leading manufacturer of cylindrical lithium ion batteries, offering competitive pricing and advanced technology. To ensure quality, buyers should:

  • Verify supplier certifications (e.g., ISO, CE, UL).
  • Request sample testing before bulk orders.
  • Check customer reviews and case studies.
  • Evaluate production capacity and lead times.

Platforms like Alibaba can help identify reputable manufacturers, but due diligence is essential.


What Buyers Should Know Before Buying Cylindrical Lithium Ion Batteries from China


Before purchasing, consider:

  • Voltage and capacity: Match specifications to your application.
  • Cycle life: Higher cycles mean longer battery life.
  • Safety features: Overcharge and temperature protection are critical.
  • Shipping and logistics: Ensure compliance with international regulations.

Types of Cylindrical Lithium Ion Batteries


Common types include:

  • 18650: Widely used in laptops and power tools.
  • 21700: Higher capacity, popular in EVs.
  • 26650: Larger size for industrial applications.

Functions and Features of Cylindrical Lithium Ion Batteries


Key features:

  • High energy density (up to 250Wh/kg).
  • Low self-discharge rate (~5% per month).
  • Fast charging capabilities.
  • Lightweight and compact design.

Scenarios of Cylindrical Lithium Ion Batteries


Applications include:

  • Renewable energy storage: Solar and wind power systems.
  • Electric vehicles: Tesla and other EVs use these batteries.
  • Consumer electronics: Laptops, drones, and power banks.

How to Choose Cylindrical Lithium Ion Batteries


Selection tips:

  • Prioritize safety certifications.
  • Compare energy density and cycle life.
  • Assess supplier reputation and after-sales support.

Cylindrical Lithium Ion Batteries Q & A


Q: What is the lifespan of these batteries?
A: Typically 500-1,000 cycles, depending on usage.

Q: Are they safe for high-temperature environments?
A: Yes, if they include thermal protection.

Q: How do I dispose of them?
A: Recycle at certified facilities to avoid environmental harm.

Q: Can I use them in DIY projects?
A: Yes, but ensure proper voltage and capacity matching.

Q: What’s the price range?
A: $2-$20 per unit, based on capacity and brand.