Question 2005 Sienna LE 51k - Battery or Alternator?

[2-DRY]

Wife's van wouldn't start.

Green eye in the battery but no turnover - a little high pitched squeal from alternator ( I suspect) but seat wouldn't run when not started. Jumped OK but wouldn't restart. Battery terminals are immaculate.

I will check alternator output after work today at the auto parts store. I am tricklecharging the battery now. No CODES were returned engine running. Should there be?

So it's the Battery or the alternator.

Thoughts or comments? I'm kinda pissed if it's the alternator already! We bought it new in 2005.

I suspect the battery, but the squeal worries me.

Thanks, John

[2-DRY]

Battery replaced.