How long can a car sit without being driven before the battery dies?

If you’re dealing with a fully charged battery that’s relatively new and in perfect condition, it will take 2-3 months for it to lose its power completely. However, you’re probably pushing your luck if you let it sit idle for more than two months.

What happens when the auxiliary battery dies?

Symptoms. When the main battery dies, the car won’t start. The car starts when the auxiliary battery dies, but an auxiliary battery malfunction appears on the dashboard. In most cases, the car runs and drives fine even with a bad auxiliary battery.

Can a car battery drain itself?

When you car battery discharges soon after shutting down the engine, it’s commonly caused by one of three things: Your battery may have reached the end of its service life (often 4 or 5 years). A parasitic drain is depleting battery power. A problem in an electrical system is affecting battery power.

Can an auxiliary battery drain the main battery?

other accessories continue to draw power when the engine is off. However, simply wiring extra batteries into a vehicle’s electrical system can allow auxiliary batteries to drain power from the main battery, inhibiting engine starting and other essential functions.

Can you still drive with an auxiliary battery malfunction?

It’s not recommended to drive when you’re experiencing issues with your auxiliary battery. However, it does not put you in any immediate danger as long as you don’t notice a decline in the overall handling and performance of your car.

Will disconnecting battery save battery?

Disconnecting your battery from your car before you leave could potentially save you from having to replace it with a brand new one when you return. “Some of these new cars have so many electronics and modules, the battery could get drained in a matter of weeks if left alone,” he said.