Features: 18650 fake battery with input cable, length 23cm, used to connection power adapters to desk lamp, fan, auditory systems battery connection, as a conduction conductor, not with charging function can be used for various electronic devices. Not a genuine 18650 battery, without real power, cannot be used in series, positive and negatived poles do not conduct. Cannot charging, can be used with a corded power cord or adapters 18650 fake battery virtual battery placeholder, suitable for toy, LED lights, speakers, small fan, cameras Specifications: Color: Blue/Yellow/Red Optional Height: about 65mm/2.56in Diameter: about 18mm/0.71in Quantity: 1 set, Line length about 23cm/9.05in Package Includes: 1PC 18650 space-occupation cylinder with Cable 1PC male wire note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.