[OffGrid (Steve)]

Congrats Tim, that does look pro in my opinion.
I cannot see how you connect to your battery so here is how I do mine.
My batteries are multitasking between astro and camping and also taken to Girl Guide jamborees so they need to be bullet proof and simple to connect.
So I chose to make up short Anderson fused connecting tails that are glued to the top of the batteries as per pics.
This means when I am not around, things such as chargers, loads and solar panels can be connected without getting the polarity wrong, even in the dark.