[thecapybara]

I have a Quest 2 and a Quest 3 - both headsets allow you to continue using them while they're plugged into an external battery pack or charger, so you can absolutely do this already.

I agree it'd be nice to have an external CPU pack for heat and weight reasons, but we're not quite there yet. The closest thing currently is wireless streaming via a PC running Steam VR, but that's not exactly portable.