The car battery cable is made from high quality copper and PVC insulation to help protect your vehicle from short circuits and overheating. The black wire is the negative terminal and is intended for high-powered electrical devices, while the red wire is the positive terminal and is fixed directly to the car battery. Enhanced safety with external fuse protection - Features an external 20A fuse protection to help prevent damage to devices caused by high current or short circuits. Wide range of use - Suitable for powering devices directly from the car battery, or for connecting a 12V or 24V inverter to the battery. Provides reliable assistance in emergencies. Efficient performance and details - Copper conductor: 2.5 mm² - Ring terminals: 0.23 in (6 mm) diameter - Cable length: 1 meter - Easy to install and compatible with most automobile models Use scenarios - Emergency power: Connect a 12V or 24V inverter to run essential devices (laptop, small appliances) while on the road. - High-current accessories: Power high-demand accessories such as portable refrigerators, air compressors, or other 12V/24V devices directly from the battery with added safety. - Vehicle maintenance and setups: Use for reliable battery-to-device connections during roadside repairs or testing of electrical equipment. This product provides a straightforward, durable solution for high-current automotive power needs, with clearly labeled polarity, robust copper conductors, and built-in fuse protection for safer operation.