Of course I'm sure. When I ordered it from SonyStyle Europe they told me that it was incompatible although on their website it was advertised compatible with NZ90. So with the help and the input of some CliéSource members who assured me about the compatibility of the battery adapter with the NZ90 I told SonyStyle that I want to order it anyway. So It went home ysterday and it works Great with my NZ90.
I think they prefer at SonyStyle to sell batteries instead of the battery adapter wich is cheaper OR, they do not know their products, wich is also possible.