General description of electrical equipment (Peugeot 305)

The vehicle's electrical system consists of three main components: (1) the battery, (2) the alternator with voltage regulator, and (3) the starter. The remaining electrical equipment can be divided into three main groups: (1) the lighting system, (2) auxiliary electrical equipment, and (3) instruments and signal lights.

The battery supplies the current needed to start the engine, operate the ignition system, lighting, etc., and provides reserve power in case the current consumption exceeds the generator's capacity.

The generator produces the electric current needed to keep the battery charged and to operate auxiliary electrical equipment.

The starter turns the engine using the pinion gear, which is engaged with the flywheel ring gear. The starter draws very high current and is therefore connected directly to the battery using a special wire.

When charging the battery, it is necessary to disconnect the wires from its terminals, otherwise you can damage the internal diodes of the generator and other semiconductor equipment that may be used in the car.

The electrical system has a negative ground, which must be kept in mind when connecting a radio or other additional electrical equipment.

Original text is located at PeugeotBook.ru

When starting the engine by "jump starting", the batteries are connected first with the positive and only then with the negative wire. Disconnection of wires should be done in reverse order.