Pretty decent deal if you are after a 2.0AH battery, considering the battery by itself is $85.
If you don't need or want it, sell the charger off on FB or Gumtree etc for $10-$20 and then it's a very cheap Ryobi battery. I have never had a problem selling off spare chargers, they have always sold quickly for me.
Fair bit of stock around with not too many stores nil stock. https://nrby.in/bunnings/0789073
On the web page before you click on the battery kit, it says in-store only, but it shows available for delivery for me from the few stores I checked. Eg; Canberra, Sydney, Melbourne, Brisbane, etc.
https://www.bunnings.com.au/search/products?page=1&q=ryobi+1…
I saw this today, but I was there for the 3 x 4Ah combo at $229.
I have all up around 10 chargers ($v/18V/36V), and have sold off several in the past, buying reduced combo kits.