Hello, I recently replaced my alternator on my Mazda 3 2012 because voltage was dropping from 12 to 9. It seemed to fix the issue temporarily was able to drive about 100 miles till it would flicker on then hard than hard sticks. After I verified all my connections I.e battery cables, alt connector and terminal weird on tight and the issue went away here I am three days later and same issue it would flicker for a lil then hard stick battery light. I just noticed my battery cable was loose enough to slide up but with a good amount of force. Any suggestions on what it could or or is that battery cables it?