Additional solar

[airhoguk]

I currently have a 120 watt roof panel feeding two lithium batteries for when off grid. However I want to go off grid for more than a couple of days. Would I need an additional solar controller as well as fold up panels as I think my existing controller won’t cope with an additional 200 watts of solar?

 

[soldas]

What mppt do you have? It would have to be something pretty low end not to be able to handle 350w (although you would really hit that full amount).

 

[airhoguk]

It’s a Victron 75/20 from memory