Extended Battery Positive Cable - 50mm2 x 2.5mUltra Heavy Duty Ultra Long. 250cm Red positive wire extension connects from the output of the battery isolator switch to the input of any Ultra Winch Solenoid. Pro Tip In many cases, the ground wire does not need to be extended if the chassis earth is adequate, the included ground with the winch can be locally joined from the winch to chassis. Should you require a longer earth, this wire can be colour coded with black heat shrink and labelling on