Yep, wouldn't need a battery charger, handy to have around, I use mine for lots of different things, I picked up a 12v fuel pump for $7 and use it to transfer fuel from boat tank to cars. Run a air compressor to pump lawn mower or wheel barrel tires. Power goes out can charge phones and the little LED light would probably run for a week.
Closest gas station is 10 miles, kids cars used to pretty much just go to school and back 4 miles each way, and fuel is cheaper where I work. Burn a gallon to go fill them up or fill the boat tank when filling my car and transfer it to my other cars.
DEWALT 2800 Peak Amp Jump Starter 1000-Watt Power Inverter with Digital Compressor-DXAEPS2 - The Home Depot
Thank one would do it, but pretty expensive.
Another thought if all you really want is 110v, a computer ups. Make sure you get one that you can turn the beeping off.