Solar Panel Question

In addition to having someone tell you how to size the unit and connect it, you'll also need someone to do the actual installation for you, too.

How to Install Solar Power at Your Home: 6 steps - wikiHow
In short, if you know nothing about electricity, solar panels nor making simple DC electrical connections, there is little hope that you can ever install a working solar panel.

I'd hire an electrician or an electrical engineer, which, I suspect, you are not.

You should also have a charge controller. Collectively, the inverter, battery, and charge controller instructions should tell how to hook it all up (e.g., red to red to red, black to black to black) and what conductor sizes. Be careful not to short any + and - to each other.

why do I get the feeling this wont be the last battery you buy for this gem of a system?