I think what i am going to do is my original plan and see how it works by trial and error, and maybe build a battery backup and ill watch wills video again i posted, and look into a different inverter, the one he used in the video with his link says $300, but when i clicked on the link it said $399, so i will check again, but in his video, he shows a Battle born battery of 100 ah, and a simple connection to the grid and home and says it wont back feed. so this could be an emergency backup, and go with my first post for my swamp cooler and just have me switch it on and off with a power strip
Well first, you don’t need an AC charger, that’s not going to buy you anything (but misery).
You need a Solar-powered inverter, either stand-alone if you just want to power some 240V appliances during the day, or grid-tie inverter limited (GTIL) if you want your appliances off of grid power when the solar can’t provide enough power.
If you decide to add a battery, either your all-in-one needs an MPPT solar charge controller (SCC) or you also need to add a separate SCC.
The key thing you need to figure out is how much power you can expect from your two panels. Suggest you check out PV Watts:
https://pvwatts.nrel.gov/
Enter your zip code, solar array size, azimuth angle and tilt and it will estimate how much power you can expect by month (or even by day or hour if you download the data).
With that alone and the estimated consumption of your largest daytime consumers (cooler and fridge), you can estimate how many kWh you can reduce by month or day.
If you are able to consume everything your solar array is generating as it is generating it (meaning during the day only), that is the best you can do.
If your array will be generating more power than you can consume as it is being generated during the day, you need to add a battery (as well as a solar charge controller if your all-in-one box doesn’t already have one).
Charging a battery from grid power won’t help your situation at all since the AC chargers are inefficient (~80%). So you use 1kWH of grid power to charge 0.8Ah into your battery which you then use to generate 0.60-0.64Ah of AC power for your appliances (meaning you spent 156% to 167% of the grid power you would have spent by powering direct).
Start with the consumption and the Solar power you can fit/afford and the figure out the correct inverter - don’t start by selecting the inverter...