I haven't been to the shop myself, but from the photo it looks like there is an in store redemption of a charger + 5Ah battery if you by the skin only version of the DCF809N-XE brushless impact driver. Someone correct me if I am wrong.
It looks like the kit (including the driver, charger and battery) is selling for $249: https://www.bunnings.com.au/dewalt-18v-5ah-xr-brushless-atom…