Dangerous goods - Lithium batteries

You can find all types of batteries in everyday items like mobile phones, laptops, and tablets. But if they aren't carried correctly onboard your flight, they can risk passenger safety.
Batteries in portable electronic devices (for example laptops, electric toothbrushes, handheld gaming devices) may be kept in checked luggage under some conditions. You should ask your airline when you check in.
You must carry all spare or loose batteries must be in your carry-on baggage only.
Find out more on the CASA website: civilaviation.au/lithium-battery

[@Rich6270]

Yep just put them into family EV cars and convince everyone it’s safe.