If you're in a disaster prone area of living, a portable power station is probably a solid choice for keeping the lights on. As someone who lives in the Midwest, I've had my fair share of power outages from snowstorms, blizzards, tornadoes, and derechos. In those events, the power station serves as peace of mind to keep my fridge running and my phone charged when I need it.
However, you'll have to review the pros and cons of investing in one. Even with these deals, they can still cost a couple hundred to a few thousand dollars.