Please check diagram for my 48v system

[zlamb]

I am going to use 6 gauge for scc to battery and everything else 2 gauge. I don't want bus bars or a battery switch.

Does anyone notice anything that needs to be fixed?

 

[zlamb]

Can everything go to the shunt like I have it?

 

[HRTKD]

Yes, that will work. But it's easier if you use a set of bus bars to make all the connections.

 

[Koyaanisqatsi]

And don't use 4x12V batteries in series. Just get a 48V battery. You will save yourself many headaches. Batteries in series need to be kept in balance which is either expensive or impossible for LiFePo4 batteries. Lead-acid is easier in that regard, but sucks in (almost) every other way.