Amazon.com: 9 V Battery Clip Connector, I-Type 9 Volt Battery Clip, 9V Battery Buckle Connector Hard Buckle Plastic Housing and Black Red Wires Leads Iength 5.9 inches (I Type Hard Shell 8PCS) :
Onlyoa 9v Battery Snap Clip Button Interface Connector Lead Wire T Type 9v Battery Box Battery Cap - Buy 9v Battery Holder Snap Clip On Cable Connector Lead 2 Buyers,9v Battery Button
9V Battery Clip Connector with Dual Alligator Clip