Features: 10440 LR03 AM4 3A size fake battery fake battery connectors, with JST input line, red wire positive electrode, black wire negative electrode, wire length 23cm, positive and negative poles not connection, mainly used for connecting power adapters. 3A battery connectors, use as a conduction conductor, the positive and negative electrode is not-conduction, and there is no shortcircuit in the fake battery. Not real 3A LR03 battery, there is no real power. Cannot be charge, can use with USB power cord or power adapter (not included). 3A fake battery virtual battery placeholder, suitable for toy, fan, clocks, thermometers, LED lights, instrument and more. Specifications: Material: steel Color: Green Height: About 44mm/1.73 inches Diameter: About 10mm/0.39 inches Wire length 23cm/9.06inch Package Includes: 1 Piece 3a Battery Cylinder Placeholder with JST Female Port 1 Piece JST Male Wire note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.