I haven't seen this one before, a 60W USB-C PD powerbank (Specs say 20V 3A) for $69 is quite a good deal. My email says this price is for the next 32 hours or so. For comparison the Cygnett 27000 which also does 60W PD is $140.
You can get free shipping with shipster (which all good ozbargainers should have gotten for free) - otherwise shipping to metro melb was around $9-10.
You can also stack with 10% off kogan gift cards
So you can potentially get this for around $64 shipped (10% off $50 gift card and free shipster shipping)
Battery Capacity 26,800mAh
Input Type-C: PD 5V=3A, 9V=2A, 12V=2A, 15V=2A, 20V=1.5A
Output Type-C: PD 5V=3A, 9V=3A, 12V=3A, 15V=3A, 20V=3A