Federal Treasurer Scott Morrison has ridiculed South Australia's big battery deal after saying Australians are sick and tired of watching politicians fight over the right energy solution.

Mr Morrison has labelled SA’s deal with billionaire entrepreneur Elon Musk to build the world’s largest lithium-ion battery a “Hollywood solution”, and he doubled down on Thursday. “By all means, have the world’s biggest battery, have the world’s biggest banana, have the world’s biggest prawn like we have on the…