Hi I need help hopefully someone has experience in this problem. Tractor was starting fine . I parked it under cover . Went to start it a week or so later it’s not trying to turn over. I can hear a growling clicking sound when I turn the Key with clutch depressed. I thought it was a low battery but I messed up did not get the meter on it first ! I tried jumping it. No go same growling . Trying several times to jump. Finally took battery off tractor Charged it (should have used the meter but didn’t before I charged it but didn’t. After fully charged 12.95volts battery is 2yrs old put on tractor tightened ground to frame cleaned cable clamps. Still clicks growles under dashboard sounds to me. I need a helper to diagnose further . Please comment and advise with help on the problem, fuse seems to be fine.