Alternator or Battery?

[GMCGoat]

I took the alternator and battery out of my truck. Need to get them tested first but from what I know, when a vehicle is running and the alternator is working correctly, the battery should read between 13-14 volts.

In my case, when vehicle was running (after boosting it), the alternator was only reading 11, then 10, then 9. then I shut vehicle off and of course it didn't start.

Thoughts?

I'll get some free tests at Napa or something tomorrow.

I'll clean all connections, check negative to frame connection before re-installing.

PS. Do I need anti-seize on my pivot bolt and/or adjusting bolt?