[RedHead7]

I just put a new alternator in my car 50 miles ago, and my car died again while driving. I think there are electrical problems in my car, either a short or some other bs problem. Any ideas on where to start or how to diagnose it?? Thank you in advance for the insight!!

 

[IanH]

get a voltmeter and measure the battery voltage.
Charge it up on a charger and measure again.
Run the car and measure again, at idle and about 3,000 rpm.
If you don't have one any cheap digital multimeter (under $10) will do.
Post the results.