. The 3 high capacity capacitors are the car battery.
. The voltage source is the alternator regulator.
. The lamp beside source voltage is the engine.
. The 2nd lamp beside is the car starter (about 150 A).
. At first please use the pushbutton beside source voltage to get an instant charge of battery.
. The spst switch over capacitors is the main contactor key.
. The pushbutton over is the starter contactor.
. The red led means contact is ON and battery is not on charge.
. The spst and lamp at top are the common electric components (other than starter) of the car that consume current (about 50 A).