How do I get Solar power coming out of my wall sockets and charge my powerwall

Hey there

I finally got plenty of 18650s laying around and already completed some projects with them.

Now, that I have kind of a reliable source for cells I wanted to start building an off grid system. I've gotten into the topic many months ago but there are still some questions remaining.
I know about inverters and solar controllers but all the controllers I find online seem to not be suitable for Lithium batteries so how do I get my cells ordinarily charged?
Getting this Problem out of my mind I might be able to power a shack that has no grid connection, but this raises another question for me:
How do I get the energy of aPowerwall coming out of my sockets?

Thanks a lot in advance and If my questions are trivial I am sorry.

Hrmm, I'm gonna guess you haven't looked any builds in the Builds sections. There are plenty of people charging their batteries with standard chargers of various different makes/models. It all requires proper settings. Please read more about builds and also the FAQ under the same section.

Solar -> charger -> battery -> Inverter -> your outlets

Thats the basic

A little outdated - but this is how mine is hooked up, changed alotbut you'll get the idea