The only thing that concerns me about EVs is the cost of battery replacements. Someone told me this can be up to €15,000 for a new battery for some EVs, is this true? Anyone any real world experience of battery replacements and the costs etc.? 15k seems alot to me.

Advice needed for huge Leaf repair bill.
I bought a new Nissan Leaf 40 kw from the local dealer in 2021(1).