Features: The 18650 Battery Holder for integration with standard 3.7V lithium batteries, ensuring contact and stable connection for your DIY power systems. Featuring SMTs (Surfaces Mount Technology), this battery holder allows easy soldering onto PCBs, optimizing space usage and enhancing assembly efficiency. for electronics enthusiasts and professional, this battery holder cater to those involved in creating or maintaining electronic projects requiring dependable power solution. Perfect for a wide ranges of applications, from portable devices and LED lighting to power management systems and consumer electronics, this holder supports both single cell and Two cell configurations. from PA66 material with gold Plateds Coppers, it offer corrosion resistance and long durability, making it a valuable addition to any electronics toolkit. Specifications: Materials: ABS Styles: Single Cell, Two Cell Battery(optional) Package Includes: 2Pcs 18650 Battery Holder Case note: Please allow 0-1cm error due to manual measurement. make sure do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.