Next: If the test above showed the alternator field was indeed drawing some current, Hook the belt back up, leave your battery clip lead hooked to the one field terminal, and remove the hookup to the remaining field terminal.
REconnect your remaining clip lead to the remaining field, and ground that terminal. Now restart the engine, and monitoring battery voltage, again look for rising voltage. If the voltage at battery remains down around 12V or even less, Move your meter (volts) to the alternator output stud. See what that reads, at a good fast idle.
If it ALSO reads quite low, 12V or less, the alternator is simply NOT charging.
But if it reads quite HIGH perhaps 17--20V this means that you have a break/ bad connection in the charging wire path to the battery
