High-capacity 18500 3.7V 1400mAh lithium-ion battery for reliable power in electric tools and digital devices. Premium cylindrical design with advanced Li-ion technology ensures stable voltage output and long cycle life. Built with durable casing and precision welding for enhanced safety and heat resistance. Ideal for cordless drills, flashlights, medical equipment, and portable electronics. Rechargeable with low self-discharge rate maintains charge during storage. Bulk pricing available for industrial suppliers and wholesale buyers. Worldwide shipping with competitive factory-direct rates.