The simple answer is yes but a car battery can only be drained when it sends more power than receives back from an alternator.
Fix car battery drain.
Why does a car need battery.
A car alternator recharges the battery and powers certain electrical systems like lights radio air conditioning and automatic windows.
Remember that the drain doesn t have to take your battery to zero overnight just low enough for it to not start.
New vehicle models make it specially difficult time consuming and frustrating.
Car battery problems specially a parasitic battery drain are difficult to diagnose sometimes.
That seems like a tiny amount but a single incandescent dome light pulls enough power to drain a battery in one day.
If your alternator has a bad diode your battery can drain.
What causes a car battery to keep dying.
In other words car battery drains when it is not charged enough which is a common problem when using powerful amplifiers.
If the battery drains when the vehicle sits for three or four days that s a lower amp draw than one that drains.
Let s find out what does it mean and how to fix this problem.