what is 18650 battery

The 18650 battery is a type of lithium-ion rechargeable battery, known for its high energy density and long-lasting power. These batteries are commonly used in a wide range of electronic devices, including laptops, flashlights, electric vehicles, and power tools. The "18650" designation refers to the battery's size, with a diameter of 18mm and a length of 65mm. 18650 batteries are popular due to their compact size and high capacity, making them an ideal choice for portable devices that require a reliable power source. They are also known for their stable voltage output and excellent performance under high discharge rates. With their ability to be recharged hundreds of times, 18650 batteries are a cost-effective and sustainable power solution. They are widely available from various manufacturers and are often used as a standard power source in many consumer electronic products.