A battery terminal clamp is a crucial connector used to attach vehicle cables to the battery. These clamps ensure a reliable electrical connection between the battery terminals and the vehicle's electrical system. The 'BATTERY TERMINAL CLAMP -' specifically refers to the negative terminal clamp, which provides grounding for the electrical circuit. They are often made of durable materials like lead or copper to resist corrosion and ensure stable current conduction. Battery terminal clamps are vital for a vehicle's starting performance and overall functionality, ensuring consistent power delivery and connection throughout the electrical system.