first battery backup help

Hey all brand new to The Forum, As well as being new to battery backups and alternative energY supply in general.

I have been researching for the better part of A week and unfortunately I cannot find cohesive, step by step, beginner type instruction So that I can go purchase the components necessary to put together my first battery Bank set up. I'm sure this information exists, but apparently I'm looking in the wrong places or using the wrong Search terms. I would definitely appreciate the help whether here or being linked to a different site or Forum where this information already exists.

Please, in your Response, keep the math and "tweaks" to a minimum. That part I can handle after I understand the basics.

Unfortunately my home is being foreclosed on. I'll probably be able to stay here for another year or two, but then maybe moving into a new house, condo, apartment, etc. Because of the uncertainty of the living situation, I have no interest, access, or budget for anything regarding Permanent type solutions like wind power, solar, hydro, etc.

Here's the problem...

I hate my power company, and have a desire to not use them anymore...at all! So this solution needs to not be dependent Or rely upon any grid power whatsoever.

I have accepted the fact that I'm not trying to supply power to my entire home. I am okay with scaling back on my energy usage. For example, I'm eliminating the need to supply power to the sump pump, washer, dryer, dishwasher.

I am not sacrificing the following items.... I will be usinga refrigerator/freezer, a few very energy efficient LED lights, 2 LED TVs, two laptops, two cell phones, Wi-Fi router, And a couple other seldom turned on Items....hair dryer, microwave, blender, etc.

I want to design and purchase a battery bank and generator system. Let's assume that Ive been divinely inspired and know that I need "X" amount of marine deep cycle 12v batteries to supply my power needs for the length of time that I need it supplied for. Also based on the reading I've done, I believe a generator inverter is a better option for me based on the portability, quietness, and fuel efficiency versus a conventional generator.

Keep in mind the importance of portability, scalability (I'd like to be able to add to the system later as my Needs change) and necessity to be relatively quiet. Given the scenarios I have outlined and the way I intend to use this system, I have 4 basic questions:

1)What size inverter generator do I need? I'm guessing 3-4,000.

2) How many batteries should I start with? I'm thinking 4.

3) What else do I need component wise and how do I set it all up? Even minor stuff like wires and cables that I'll need. I would love to have a shopping list to take!

This is actually the most important question as far as I'm concerned because this is the information I can't seem to find anywhere. For instance, I don't understand if I need another inverter after the battery Bank.

The way I conceptualize It in my mind if I were to draw a diagram....I would have my gas powered inverter generator wired to my battery Bank Of 4 parellel connected marine batteries. This would then need to be inverted again With another device in order to crank out the final output of AC current So wish I could plug household things into.

I've gotten confused by things that I've read about Special "battery chargers" that charge the marine batteries the most efficient way possible to ensure long life. Do I need One of these are from using the generator inverter combo?

4) Would I have to run the generator all the time or is this something that would come on and turn off as needed. It would be my hope not to have to have it turned on but maybe once a day for a few hours or if I had to all the sudden you something that required more energy.

Please feel free to point me in the direction of an all-inclusive step by step on how to accomplish what I'm trying to do. I just can't seem to find it anywhere

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first battery backup help