solar panel

I have a 2019 Nuevo which was supplied with an 80w solar panel. I have been wondering about having a second one fitted to double my charging capacity, I already use a 120w suitcase one but would like a panel on the van if feasible. I think theres room for it but don’t know if the Sargent system can cope & are their benefits of using a different controller. 
Wondering if anyone has gone down this route & what were your experiences.

Try using the search function above, there is lots of information on the site.

It is infinitely better to fit a dual battery solar controller, connect both batteries direct to its outputs via inline 10A fuses.
If you get a 20A controller you can add as much as you have roofspace.
Bypass/ avoid anything Sargent wherever possible imho!!

Thanks IanH, but I’ve only got one battery, not enough room to fit 2.

The Sargent regulator is only good for 10 amps ,if you add another 80watt panel on to the roof and join them you will need a 15 amp solar regulator as a minimum to be safe but best would be a 20amp regulator

I was always led to believe the Sargent unit will only take 120w.