- Before connecting the auxiliary battery, make sure that the ignition key is turned to the " OFF " position.
- Turn off all lights, heater and other electrical loads.
- Take care to protect your eyes. It is best to use protective glasses.
- Make sure the booster battery is rated for the same voltage as your vehicle's battery.
- Two cars must not touch each other under any circumstances!
- Make sure the transmission is in neutral (manual transmission) or "P" (automatic transmission).
- If the booster battery is not a maintenance-free type, remove the vent caps and cover the vents with rags.
Connect the heavy gauge red jump starter cable to the positive (+) terminals of both batteries. Connect one end of the black jump starter cable to the negative terminal
(-) terminal of the booster battery and the other to a reliable ground point on the vehicle being started (for example, a bolt or bracket on an engine block). Make sure that the wires do not touch the fan blades, drive belts or other moving parts of the engine.
Start the car, then, leaving the engine running at idle speed, turn on the heater voltmeter motor (at maximum speed) or a rear window defroster to smooth out voltage surges that may occur when the wires are disconnected (do not turn on lighting fixtures, as sudden voltage peaks may cause the lamps to burn out). Disconnect the wires in the reverse order of their connection.

Connect the jump start wires in the order shown in the accompanying illustration by the numbers (please note that the wire coming from the negative terminal of the auxiliary battery is not connected to the negative terminal of the dead battery).
The publication is reprinted from this resource: nissanbook.ru