Unless your battery was also fscked you should’ve been able to go a lot longer than 5 minutes before your engine died. and in response to the question, yes a car can run with a dead battery, or a dead alternator (as long as the battery still has some charge), but not if both are dead.
Can I drive on a low battery?
And a dead car battery is not going to be restored no matter how long you drive. The alternator cannot turn a bad battery into a good battery—it’s as simple as that. And there is no way of knowing if your battery is on the decline and needs to be replaced until you have a battery test.
What happens if car battery is low?
If your car battery is failing, it’s not going to be able to fully power your vehicle’s electrical components – including your headlights. If you notice that your headlights seem dim and weaker than usual, take note! Not only is the reduced light a safety issue, it also means your car battery is almost kaput.
How long can you drive on a dead battery?
To fully recharge a dead 12-volt car battery, you’d have to drive about 2,000 miles, going faster than 70 mph, without the radio, AC or headlights. Then you’d have to buy a new alternator.
Will a car shut off while driving if the battery dies?
A dead battery can cause your car’s engine to stop running, even while you are driving. The depleted battery indicates that some part of the electrical system is not functioning properly. Typically, a malfunction of the alternator is the cause. … Fitting a new drive belt to the alternator should solve the problem.
Will a dead battery stall a car?
A dead or internally shorted battery can not only cause a car to stall but it will also overload the alternator as the alternator attempts to both charge the dead battery and supply the car’s electrical needs.
How do I know if I need a new battery?
Here are seven telltale signs that your car battery is dying:
- A slow starting engine. Over time, the components inside your battery will wear out and become less effective. …
- Dim lights and electrical issues. …
- The check engine light is on. …
- A bad smell. …
- Corroded connectors. …
- A misshapen battery case. …
- An old battery.
How do you jumpstart a car with a low battery?
Turn off the ignition on both cars. First, clamp one end of the positive cable to the dead battery’s positive clamp. Now have a helper connect the other end of that cable to the other battery’s positive clamp. Next, connect the negative cable to the negative terminal on the good battery.
Do I need to drive car after changing battery?
If your car does start, let it run for a few minutes to help charge the battery further. Unhook the clamps in the reverse order of how you put them on. 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.
Does a car run off the alternator or battery?
Your car’s electrical system consists of the battery, starter and alternator. The battery provides juice to the starter. Then, the alternator gives that battery the energy it needs to power your car. If one of these parts is not working properly, your car won’t start or run correctly.
How much do you need to drive to keep battery charged?
To keep your battery adequately charged, we recommend driving the vehicle once a week for at least 30 minutes, preferably at highway speeds to ensure that the battery gets the boost it needs.
Does revving the engine charge the battery?
The battery will charge faster if you rev the engine faster. Why? Because the faster the crankshaft turns, the faster it turns the belt that runs the alternator. And the faster the alternator turns, the more electricity it produces to run all the electrical stuff in the car — and recharge the battery.
Does starting a car charge the battery?
“Starting the engine draws 100 to 130 amps, and idling the car for 15 minutes might put back three or four amps,” Brown-Harrison says. “If you’re idling only for 15 to 20 minutes, the battery never truly gets recharged. So each time you start and leave it to idle, the charge will get lower and lower and lower.”