Can A Car Battery Charge Itself. As long as the mechanical action of the alternator is taking place. Between them is passed an electric current which is captured and stored in the battery.
The idea is to charge your car via electromagnetic induction which works by having a pair of coils one in the charging unit transmitter and one on your car receiver. Since cells do not produce energy they do not have any other mechanism to charge themselves. A leaky car battery is a sure sign of a dead battery or at least a battery in its final moments of functionality.
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The higher the drain on the battery a cars starter motor is an incredibly high-drain device the greater the effect. But the vehicle electrical system has charging system. The bad alternator diode can cause the circuit to charge even when the engine is shut off and you end up in the morning with a car that wont. A 10 amp charger can cause damage to your car battery as it does not drop down the current to 2-3 amp after a full recharge.
