We use and recommend this type of 120 Amp industrial electrical connector for easy connection and disconnection of battery and winch cables. They are mixed (male and female) and just require a little soldering of the wires in the lugs.
Rated current (Amps):120 A
Rated voltage (Volts):600 V
Contact barrel wire size [AWG]:2/4/6AWG (1 3.3 mm² – 21.1 / 33.6mm²).

Package size: 14.1 x 10.7 x 4.7 cm;
Weight: 130 grams