New Battery, Good Alternator. but battery still drains.
2002 ford mustang. 3.8. serpentine belt still good, connections to the battery new, all fuses seemed to work. i took the car to a mechanic, he said that the cables from the alt to the fuse box werent making good contact with each other, now he supposedly fixed the problem. but 2 days later the battery started draining again. we checked the cables again and they seemed fined, took the car to the mech again and he said that we should change the alternator anyway. the only thing is that the alternator is working fine, there's nothing wrong with it, i've taking it to have it checked 4 times and all 4 times it has come out good. now 4 days ago i've found out that if i hit the pedal to go to above 2500 rpm the battery light comes off and the gauge that measures the battery goes back up to high. so i've been doing that for the past 4 days and it has been working fine until today that when i go above 2500 rpm it doesn't seem to work anymore. the only dif. is that the battery is not draining as fast as before.