Hello XXXXXXXXXXXX
If you can give me a little more information, like what kind of car, exactly what the car is or isn't doing I'll try and help you out. Thanks
It sounds like your altinater went out and you've lost all power from the battery.
You can pull the alternater off and take to your local parts house and have it checked or put a good charge on the battery and take to the nearest repair shop and have them check it,but it does sound like your altinateer.
Chevy Technician
ASE certified,expired. 30 years experiance self employed semi-retired.