batteries 18650 lithium ion
The 18650 lithium ion battery represents a revolutionary advancement in portable power technology, characterized by its distinctive cylindrical shape measuring 18mm in diameter and 65mm in length. These rechargeable batteries have become the industry standard for high performance energy storage, offering an impressive voltage range of 3.6 to 3.7 volts and typical capacities ranging from 2000 to 3500mAh. The battery's internal structure consists of lithium cobalt oxide cathode, graphite anode, and a sophisticated separator system, enabling efficient energy storage and delivery. Known for their reliability and consistent performance, 18650 batteries power everything from laptops and power tools to electric vehicles and renewable energy storage systems. They feature built in protection circuits that prevent overcharging, over discharging, and short circuits, making them exceptionally safe for regular use. The combination of high energy density, long cycle life of up to 500 1000 complete charges, and stable discharge characteristics has made these batteries the preferred choice for both consumer electronics and industrial applications.