Here are the main types of wires connected to a car battery, explained in points:

Positive Terminal Cable (+):

This wire is usually red.
It connects the battery's positive terminal to the vehicle's electrical system and starter motor.
It provides power to the car's electronics and engine.

Negative Terminal Cable (-):

This wire is typically black.
It connects the battery's negative terminal to the car's chassis (ground).
The negative terminal serves as the grounding point for the electrical circuit in the vehicle.

Starter Motor Cable:

This wire runs from the battery's positive terminal to the starter motor.
It delivers a high current to start the engine when the ignition is turned on.

Alternator Wire:

The alternator wire connects the alternator to the battery's positive terminal.
It recharges the battery while the engine runs and powers the electrical systems.

Fuse Box Connection:

This wire provides power from the battery to the car's fuse box.
It helps distribute electricity to lights, radio, and air conditioning systems.

Battery Sensor Wire (if equipped):

Some cars have a battery sensor wire connected to the negative terminal.
It monitors battery health and charging efficiency.

Grounding Straps:

Additional grounding wires connect various engine or body parts to the car's chassis.
They ensure a solid electrical ground for the proper functioning of all components.
These wires are crucial for adequately functioning the car's electrical and starting systems.