Keep what matters running.
Start with the job, then choose the equipment. A phone and a freezer are very different power problems. You do not need to solve both with the same giant box.

What are you trying to power?
Go straight to the problem you need to solve. Bigger is not automatically better.
Refrigerator + freezer
Size backup power around the appliance and how long you need it cold.
Keep food cold →Small loadsPhones, Wi-Fi + laptops
See a cheap phone-only option and the upgraded small solar power-station option.
See small backup power →Use your vehicleTurn your car into backup power
A pure sine wave inverter can use your vehicle battery and alternator to run selected household essentials during an outage.
See the car-inverter plan →GeneratorI think I need a generator
Gas, propane, dual-fuel and solar-generator choices, what they run and how to keep them supplied.
See generators →SolarRecharge from the sun
Complete solar starting points, panel sizing, expansion and longer-outage planning.
Plan solar charging →Portable solarPower bank or folding panel?
Choose the smallest useful setup for phones and portable electronics.
Compare solar options →Want to be ready for a 3-day outage?
You do not need another equipment list. Build the plan by solving these four jobs, then use the guides above for the exact products.
Phones first. Add Wi-Fi and laptops if they matter to your household.
Solve small power →Make sure the refrigerator and freezer have enough backup capacity.
Solve refrigeration →Use fuel, solar, your vehicle or a combination so day one is not the end of your stored power.
See the vehicle backup option →Well pump, sump pump, furnace controls, medical equipment and access systems can matter more than convenience loads.
Check the house →Do this first: walk around your house.
Before you buy anything, make a quick list of everything your household depends on that stops working when the electricity does. The links above let you get to the answer quickly. This step keeps you from buying the wrong answer.
Run the refrigerator. Charge the devices. Start the generator. Test the car inverter. Recharge the battery. Find the weak link while the lights are still on.