My sisters stang had a dead battery (the cold weather sucks) and someone jump started it, and i was sitting in it to let it run for about 45 mins, and around 30mins later, it was having power surges (the radio and stuff was turing on and off) so i revved it up and then it just Shut off on me. what should i do?

she owns a 2000 Mustang v6 (the new edge) bone stock

 

come on guys, i need help like now

 

how old is the battery? it might not be holding the charge. i would get the battery checked.

 

Have you checked the battery connections? They could be corroded keeping it from charging the battery.

 

the battery connections are fine, a little dust, but i can get that off. the battery is 2 years old, and it is not a big name brand one. could the alternator have anything to do with it?

what is the alternetors purpose anywayz?

 

Can you get it running?
Batteries Plus will run a check on the battery and alternator for you for free. So will Advance and Auto Zone.

Sounds like the car (alternator) is not charging the battery.

 

Do you have a volt ohm meter? If you do get the car running and set the meter to DC volts and connect it to the battery. It should read at LEAST 13.5 volts, anything below that means the altenator is not charging it.

 

It's 12.5 volts, not 13.5.

And the purpose of the alternator is to power eletrical accessories while the car is running, and to charge the battery/keep it charged while the car is on.

 

how the **** is an alternator thats not in motion going to keep a battery charged when the car's off?

 

i have noticed and somebody told me that during the winter when it gets really cold (usually at the beginning of winter) the battery will take a crap on you...justfork out $100 and get her a new one