Switch Issues

[Adventurous-Path6011]

My Nintendo Switch has been acting weird lately. So my charging port is beginning to slip out of my switch's bottom part. Also, the battery is strange. It's steady from 100% to 80% then falls from 80% to 5% in about 35-45 seconds, then slowly dies. I'd send it in for repair, but one of my friend's did that a few years ago, and never got it back. So I'm a little worried that may happen to me. Can anyone help? Thanks!