gap

Just ran a ground wire from the alternator to the battery negative terminal. Didn't fix anything but when watching the alternator and belts spin, they didn't spin consistently. They would spin then slow down for a tiny bit then keep spinning.

All the warning light are on. Like when you turn the key to the on position except they all stay on when you start the car.

Had my alternator taken out and tested at orielly as well as having orielly and Walmart do a system test and none of the tests suggested the alternator was bad. Whenever I check the voltage Wether at the battery terminals or at the alternator, it is the same (within .01 volts) at 12.6. Checked continuity between the alternator and the battery and it read .1 volts, which everything I have read says it has to be over .2 volts to be a wiring error between the alternator and the battery. Where else can I check?

So I have a 1988 subaru gl wagon and it is having charging issues. As in the alternator is not charging the battery. I have replaced the alternator twice as well as had my old one tested (it tested at 14.5 volts). I have replaced the battery, and have taken off and cleaned all the grounds battery terminals, and plugs to and on the alternator. Whenever I test the alternator output it is the same voltage as the battery. Whenever I rev the engine above 3000 rpm, all the error light come on (charge, break fluid and stop lamp) just like when you turn the car to the on position. Thought it could be the ignition switch so replaced that and still nothing. Any suggestions? I am out of ideas.