I wouldn't use one that requires an adaptor to the Australian GPO type like that, every additional plug/socket in the path is another opportunity for a bad connection to develop that will heat up with the continuous high current draw.Does anyone know anyone who has tried a cheap alternative mobile charger from AliExpress such as https://www.aliexpress.com/item/1005003651941213.html
The Tesla one is a pretty good unit, coming with 10A and 15A plugs and supporting up to 32A with third party plugs.