How much to replace battery in note9

You should go, they may need to make a diagnosis of your phone first

you must go and quote, because they make a diagnosis first and they tell you the cost of any replacement, since normally they must remove some pieces to remove and remove in your example the battery, that piece also puts it new

59.99 for the battery. Unless there are other things that need to be replaced. Fix all or fix nothing kind of thing.

I think like 150 dollar...