to crank the engine and then function as a capacitor for unused electrical energy when the alternator is running
The purpose of the battery in a circuit is to wive energy to the circuit
Charge the battery.
The purpose of an Alternator is to periodically recharge the battery while the engine is on.
The purpose of the battery in a circuit is to wive energy to the circuit
to give it power
Keeping the battery charged.
The purpose of a battery operated candle is for ones safety. It is used to help people keep safe as they are safe to use. You can buy these from online.
It is a battery charger that can be used to start the vehicle. It has a special setting on the charger for that purpose.
The purpose of the battery is to power the product that it is inserted into, therefore executing the function of the product. Store energy. That is a definition of the term battery as it relates to electricity and other design applications. For electricity, voltage is a form of energy.
I think the purpose is so that the battery doesn't drain itself trying to turn the alternator as though it was an electric motor. The diode only lets current flow in one direction, from the alternator to the battery.
To supply the power to the drill.
Heaters for what purpose?