(Some tips DO NOT apply to the ATV winches)
The Power System:
Atlas® winches are powered by a 12 volt DC electrical system.
A 650CCA Battery is the recommended minimum for winch use. (Smaller amperage battery will cause the electrical system of the winch to over heat and malfunction.) The ground cable must be connected to the lower pole on the motor as shown in the wiring schematic below. For normal self-recovery work, your existing electrical system is adequate. A fully charged battery and proper connections are essential. You must run the vehicle engine during winching operation to keep the battery charged.
Pay close attention to the schematics below for proper cable connection.
For operations where the vehicle winch will be subjected to high water conditions (fording water hazards); a battery disconnect switch should be installed in line with the main positive cable. This will help avoid electrical shorts in the vehicle's electrical system.