The Bluetti portable electric generator on sale on Cdiscount can operate most devices under 600W. It can be recharged thanks to a solar panel (not supplied), or on a mains outlet at home.
Once recharged, it is ready for your travels, or to take over at home in case of power failure. Its LeFePO4 batteries offer at least 2500 life cycles, and to allow you to power all your devices, the generator has 1 AC 600W output, 1 USB-C output, 2 USB-A outputs and 1 wireless charger.