How To Test Alternator By Removing Battery Cable. It should stay running if you take the positive cable offbut as already notedits not a good way to test the alternator. See if the vehicle continues to run.
Clean these to ensure proper continuity for the charging system. Actually it is very easy to test the alternator by removing the battery cable. The first test can be done at your garage.
Criticisms of Battery Disconnecting Test.
Positive output on your alternator and your positive battery terminal and also with other connections. Experts today have shown concern about the effectiveness of this method. Get a cheap voltmeter. If you see higher readings chances are the alternator is good.
