Quick Release Battery Terminals Negative And Positive Clamps,12v/24v/48v Copper Plate Car ConnectorsThese battery connectors are made of quality copper plating, with corrosion resistance, good electrical conductivity, easy wiring and strong connection. The plastic cover is an insulating cover, which is dust-proof and moisture-proof, serving for a long time It takes you about 5 minutes to complete the whole replacement process, this what you need is a wrench and a battery connector, the thread on the terminal makes installation quicker and easier; It is not only 12V battery terminals, but also for 24V and 48V Car battery connectors are designed for users who usually replace batteries, the connectors allow quick disassembly for charging and storage of your marine or vehicle batteries. One red (positive) and one black (negative) clamp, the cable is fixed by a screw clamp; Positive electrode diameter: approx. 19 mm/ 0.75 inch; Negative Electrode Diameter: Approx. 17 mm/ 0.67 inch; Suitable for 4 to 6 gauge wire Battery cable ends are widely used for cars, vehicles, RVs and boats, which have a standard top battery.