I have a 1 year old small, light 800w Sportsman Inverter Generator (they call it a 1000w generator, but that is surge, not constant use) that I use intermittently to recharge a dedicated Optima Yellowtop battery which I use to power 12v lights, fans, radios, etc., as well as a USB charging station when we go tent camping 3 or 4 times a year and to power amateur radio equipment during field days. So far it has worked great.
We live in a subdivision. We seldom loose power, but it does happen, usually during/after a hurricane-remnant storm front passes through or if there is a tornado or strong wind event nearby. Most of the time the power is back on in under an hour or two, but twice in the past five years the power was off for 4+ days. That was expensive due to losing all the frozen and refrigerated food in the house.
This prompted me to look for a generator that would allow me to power all the refrigerators/freezers in the house along with some lights, fans, and the microwave. A fellow prepper found a good deal on Ebay for a DuroMax 10000-Watt Electric Start Dual Fuel Portable Generator
https://www.duromaxpower.com/products/duromax-xp10000eh-10000-watt-electric-start-dual-fuel-hybrid-portable-generator and told me about it, so I ordered one. It runs on gasoline or LP Gas. This thing comes with wheels and can be moved similar to a wheelbarrow, but weighs about 250 lbs. While I can move it, I would not exactly call it “portable”. It was a bit larger than what I was originally looking for, but the price was fantastic, not to mention the extra power available.
I have had this generator for about 2 years now and have not yet had to use it in an emergency. I run it for 30 minutes about every six weeks on LP gas and it has always started up and run without a problem so far. I have already used it once to power the equipment I want to run during a power outage just to ensure that I have everything needed to do so, and it worked better than I expected, although it was a bit of work to run extension cables, etc., but it was good practice. I am now thinking of adding a transfer panel to the house to make it easier to use in the future.