The 18650 Lithium-Ion Battery (2500mAh) is a standard cylindrical rechargeable cell that provides better runtime compared to lower capacity batteries. It operates at a nominal voltage of 3.7V and charges up to 4.2V. This battery is widely used in power banks, LED lights, robotics, portable electronics, and embedded systems where reliable and long-lasting power is required. To ensure safety and performance, always use a charging and protection module when integrating this battery into your projects. Key Features Rechargeable Lithium-Ion battery High capacity: 2500mAh Nominal voltage: 3.7V Standard 18650 cylindrical size Long backup and stable performance Suitable for portable and high-usage applications Technical Specifications Parameter Value Battery Type Lithium-Ion (Li-ion) Nominal Voltage 3.7V Capacity 2500mAh Charge Voltage 4.2V Rechargeable Yes Cell Type 18650 What’s in the Box 1 × 18650 Lithium-Ion Battery (2500mAh) Ideal For Power banks IoT and embedded systems Robotics and automation Portable electronics Backup power applications ��