Yes.. I like the small portable Generator Idea better, and you can use it for many other things as well, and the 12volts/5volt, with an adapter you could run your Cell phones and tablets, I have many 6, 12 and 5volt devices: lights windows phone, rechargeable batters, AA AAA 12volt standard rechargeable. I also Keep and 12Volt car booster with USB and Led Light and air pump, for emergencies in the home! Crank lanterns, Crank Radio, and adding all the time.
Please note to others, these things and be purchased a bit at a time..No need to go nuts, I even have dried Food storage, they can be had for 10 years and up.
Portable drinking Water filter tanks/containers, with extra filters.. Water is the most important thing, the average can only survive 3 to 4 days without it.