As the schedule is extended, there will be more energy supply. If you need to run the inverter for 1 hour, you will need 750 Ah and 12 V batteries.
Learn about the environmental benefits of solar panels and how they can reduce greenhouse gas emissions.
The choice between a portable power station and a power bank will depend on your needs. A PPS is more effective, especially for outdoor camping, motorhome trips, or emergency backup for your home.