Features: Brand new and high quality Button cell includes: the product comes with button cell, which is convenient for users to use immediately without purchase. Strong compatibility: Perfect suitable for RPI 5 single-board computer, without any additional adaptation. High-quality materials: made from high-quality materials to ensure the stability and durability of product and can be used for a long time. Safe and reliable: the product has the functions of overloads protections and short circuit protections, which effectively prevents the equipment from being damaged by power problem. Simple and easy to use: the product design is simple and practical, and no additional setting or debugging is needed. Specifications: Material:Plastic Cable Length:Approx.15cm/5.9inch Package Includes: 1 Set Battery Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.