Once again i,m back with a hard one. Battery died in the heat of Floyd (hurricane)I took the car to get the alternator checked along with the battery (1987 300 E) they told me that the alternator was not charging the battery fully, so i should change the alternator, after spending $250.00 for a rebuilt alternator installing it come to find out the mechanic said the new alternator is also bad. Now could this be possible ? or is there something that could be causing the low reading. Please help have to take car back tommorrow.