After seeing the Multi charger on discount on price hipster (info below), went to pick up and saw this kit with 2 x 4ah batteries and charger only for $100!
Does not appear to be listed on Bunnings website, however, kit appears on the ozito site.
Not sure if its better than this kit (2x2.5ah, 2x4ah, 2 separate chargers)
https://www.ozbargain.com.au/node/895641
Ozito PXC 18V Multi Battery Fast Charger - $50 down from $70
https://www.bunnings.com.au/ozito-pxc-18v-multi-battery-fast…
https://pricehipster.com/product/rUdbz-PhYm-eCWYPIaaPHw~HJ1K…
Streuth - good week to be in the Ozito ecosystem