Fix Car Battery Drain

They come with more control modules than previous year models and hundreds more electrical circuits.

Fix car battery drain.

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 won t start. Remember that the drain doesn t have to take your battery to zero overnight just low enough for it to not start. A car alternator recharges the battery and powers certain electrical systems like lights radio air conditioning and automatic windows. Why does a car need battery.

If your alternator has a bad diode your battery can drain. What causes a car battery to keep dying. If the battery drains when the vehicle sits for three or four days that s a lower amp draw than one that drains. The simple answer is yes but a car battery can only be drained when it sends more power than receives back from an alternator.

Let s find out what does it mean and how to fix this problem. New vehicle models make it specially difficult time consuming and frustrating. In other words car battery drains when it is not charged enough which is a common problem when using powerful amplifiers.