16340 Li-ion Battery 1400mAh 3.7V

The Rechargeable Li-ion Battery 16340 3.7V 1400mAh (Actual Capacity) is a compact and reliable power source designed for use in a wide range of portable electronic devices. With a nominal voltage of 3.7V and an actual capacity of 1400mAh, this cell delivers stable performance and consistent energy output for low to medium power applications. Its 16340 size (16mm diameter × 34mm length) makes it a suitable replacement for CR123A batteries in rechargeable setups, offering the benefit of long-term cost savings and reduced environmental impact. Built with lithium-ion chemistry, the battery provides high energy density, lightweight construction, and rechargeability for repeated use. It is commonly used in flashlights, small electronic gadgets, security equipment, and backup power systems where compact size and dependable performance are required. Safety features such as overcharge and over-discharge protection are typically recommended when using this type of cell to ensure durability and safe operation.