(Currently Amended) A battery connector comprising: a first connector to perform terminal connection on a negative electrode side; and a second connector to perform terminal connection on a positive electrode side, wherein the first connector includes a battery-side busbar first terminal connected to a negative electrode terminal of a battery and including a battery-side first pin insertion hole through which a first positioning pin is inserted and a load-side busbar first terminal connected to a cable, which leads to a load, and including a load-side first pin insertion hole through which the first positioning pin is inserted, the second connector includes a battery-side busbar second terminal connected to a positive electrode terminal of the battery and including a battery-side second pin insertion hole through which a second positioning pin is inserted and a load-side busbar second terminal connected to a cable, which leads to the load, and including a load-side second pin insertion hole through which the second positioning pin is inserted, the load-side first pin insertion hole is formed in a position where the load-side first pin insertion hole matches the battery-side first pin insertion hole when the battery-side busbar first terminal and the load-side busbar first terminal are superimposed and does not match the battery-side second pin insertion hole when the battery-side busbar second terminal and the load-side busbar first terminal are superimposed, and the load-side second pin insertion hole is formed in a position where the load-side second pin insertion hole matches the battery-side second pin insertion hole when the battery-side busbar second terminal and the load-side busbar second terminal are superimposed and does not match the battery-side first pin insertion hole when the battery-side busbar first terminal and the load-side busbar second terminal are superimposed. a first connector to perform terminal connection on a negative electrode side; and a second connector to perform terminal connection on a positive electrode side, wherein the first connector includes a battery-side busbar first terminal connected to a negative electrode terminal of a battery and including a battery-side first pin insertion hole through which a first positioning pin is inserted and a load-side busbar first terminal connected to a cable, which leads to a load, and including a load-side first pin insertion hole through which the first positioning pin is inserted, the second connector includes a battery-side busbar second terminal connected to a positive electrode terminal of the battery and including a battery-side second pin insertion hole through which a second positioning pin is inserted and a load-side busbar second terminal connected to a cable, which leads to the load, and including a load-side second pin insertion hole through which the second positioning pin is inserted, the load-side first pin insertion hole is formed in a position where the load-side first pin insertion hole matches the battery-side first pin insertion hole when the battery-side busbar first terminal and the load-side busbar first terminal are superimposed and does not match the battery-side second pin insertion hole when the battery-side busbar second terminal and the load-side busbar first terminal are superimposed, and the load-side second pin insertion hole is formed in a position where the load-side second pin insertion hole matches the battery-side second pin insertion hole when the battery-side busbar second terminal and the load-side busbar second terminal are superimposed and does not match the battery-side first pin insertion hole when the battery-side busbar first terminal and the load-side busbar second terminal are superimposed.