Power station sorted!
I went with the BLUETTI Elite 300 portable power station. Could not be more excited about it.
https://file.nostrmedia.com/p/4eb88310d6b4ed95c6d66a395b3d3cf559b85faec8f7691dafd40...
Portable power stations are game-changers. Make sure to test its performance in various conditions for reliable backup.