Understanding the five key features of 18650 cylindrical batteries

The 18650 cylindrical battery is a common rechargeable battery widely used in various electronic devices. It has many key features, including capacity, safety, cycle life, discharge performance and size. In this article, we will focus on five key features of 18650 cylindrical batteries.


18650 cylindrical batteries typically have a high capacity and can provide a long-lasting supply of power. This makes them great for devices that require extended use, such as laptops, radios, and power tools. Generally, 18650 batteries can vary in capacity from 2000 (mAh) to 3500 (mAh).


18650 batteries usually have high safety performance. They usually adopt multi-layer protection designs, including overcharge protection, overdischarge protection, overcurrent protection and short circuit protection. These protections can effectively prevent problems such as overcharging and discharging, overcurrent and short-circuit, thus reducing the safety risk of the battery.

03.Cycle life 

18650 batteries have a long cycle life and can undergo multiple charge/discharge cycles. This means they can be reused without the need for frequent battery replacements. Typically, 18650 batteries can have a cycle life of several hundred cycles or more, making them an affordable and environmentally friendly choice.

04.Discharge performance

18650 batteries typically have high discharge performance and can provide a stable current output. This makes them well suited for high power devices such as electric vehicles, drones, and handheld tools.The discharge performance of 18650 batteries is dependent on their internal chemistry and design, and therefore needs to be evaluated when selecting a battery for your specific needs.


18650 batteries are named for their relatively small size, with a diameter of about 18 millimeters and a length of about 65 millimeters. This compact size makes 18650 batteries ideal for use in devices that require space saving, such as handheld electronic devices and portable power supplies.

To summarize, 18650 cylindrical lithium batteries have become an ideal choice for many electronic devices, but they also need to be used and maintained with attention to the safe use of the process to avoid potential risks caused by improper operation.

Post time: May-24-2024