Futaba H/D Switch Harness with Charge Cord FEATURES: High Current Capacity 20AWG wire (normal is 24AWG) Large Physical size and Connections for High Drain Uses INCLUDES: One Switch Harness w/J Connectors and Charge Cord This is a Heavy Duty Switch Harness for Futaba Radios with J connectors; It is intended for use in giant scale models with large numbers of servos, especially those with high current draw (torque/speed/digital); The switch harness connects the receiver battery to the receiver by way of an ON/OFF switch; It also allows you to charge the receiver battery without removing it from the model