Car Battery Connector Clamp Distribution Terminal BT-19 Aluminum Alloy Auto Battery Terminal Clamp. High Quality, car audio battery terminal blocks, Car audio battery connector. BT-19 is 1*0GA+1*4GA+2*8GA. Aluminum Alloy Auto Battery Terminal Clamp. This product BT-19 can use 4 different sizes of wire. Although the types and specifications of screws are fixed, you can choose the color of screws. We have two conventional ones: gold and silver. CAR AUDIO BATTERY TERMINAL, RV/marine battery terminal box. New large block battery clamp.