Fix Car Battery Drain

If the battery drains when the vehicle sits for three or four days that s a lower amp draw than one that drains.

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. If your alternator has a bad diode your battery can drain. A car alternator recharges the battery and powers certain electrical systems like lights radio air conditioning and automatic windows. New vehicle models make it specially difficult time consuming and frustrating.

What causes a car battery to keep dying. That seems like a tiny amount but a single incandescent dome light pulls enough power to drain a battery in one day. Why does a car need battery. They come with more control modules than previous year models and hundreds more electrical circuits.

Remember that the drain doesn t have to take your battery to zero overnight just low enough for it to not start. Let s find out what does it mean and how to fix this problem. Car battery problems specially a parasitic battery drain are difficult to diagnose sometimes.