Solar panel installation questions for lithium batteries and controllers

redunculous

So this is what I am looking at hardware wise

5 x 330 watt panels 
5 x Victron MPPT 100/30 
3 x 300ah lithium batteries


I have been told to wire the panels with individual controllers but I'm not sure why I would do that?

Would I not be better off wiring them in parallel with a single controller.

I am getting a few different versions from different techs so figure I would pop the question here.

Estragon

What system voltage? How far from panels to controller?

redunculous

12v 

Not installed yet but length should not exceed 10ft.

I know the MPPT stated will be too small for the combination of all panels but I am curious as to why I would be told to use individual MPPT rather than 1 with more capacity. The reason I was given was for shading but parallel will avoid that will it not.

Estragon

In parallel, shading isn't nearly as big an issue as it would be with a series string. 10' isn't far, so not much to be saved by doing strings anyway.

I don't know how much these Victron units cost, or if the features that are typically included with larger controllers are useful to you, but I'd be inclined to consider one or two larger units rather than 5 small ones.