“Electrical devices or lights left running, a defective charging system or alternator, and extreme weather are some common reasons but maybe it’s just time to get a new battery.”
What would cause a brand new battery to drain?
Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections, persistent electrical drains, charging problems, constantly demanding more power than the alternator can provide, and even extreme weather.
What can drain a car battery when the car is off?
Even while your car is off, your battery provides power to things like the clock, the radio, and the alarm system. … What may drain a car battery when it’s off are things such as interior lights, door lights, or even bad relays.
What would cause a new car battery to drain overnight?
This can be a result of various factors including the number one cause which is leaving headlights, glove box lights, or cabin lights on overnight. Parasitic drain can also be caused by defective fuses, bad wiring, and poor installation of a new car battery.
How do I know if my alternator is draining my battery?
A battery test is easy to perform and can be done at home. First, open the hood and start the car. While the engine is running, remove the negative cable from the battery. If the vehicle stalls or dies, the alternator is likely bad.
Can a blown fuse drain car battery?
The fuse can not drain anything, it must be the wires or the device that the fuse is for.
How long should I keep my car running to charge the battery?
Be sure to drive your car for about 30 minutes before stopping again so the battery can continue to charge. Otherwise, you might need another jump start.