12 volt car charger for Surface Studio

I’m in Australia so not sure if it makes a difference when talking 12 volt. Currently have a Griffin Surface 12 volt plug for my Surface 6 rated at 30 watts. 

Given the i7 Studio comes with a 102 watt brick has anyone found a reliable car charger for the Studio?

I have one of these portable power stations with a 300 watt Australian plug on one end that works great for powering all sorts of devices under 300 watts. 

I was hoping this would work as it is overload, over heat, under power load protection but it’s not pure sine wave.

so not sure if that matters.