Truma solar panel kit advice please

[Ianm18]

Our Elddis majestic 155 has a Truma 110w solar panel and truma solar duel battery charger fitted.
I would like to add another 110w panel, I’m also adding an additional leisure battery same as existing 100ah. Can anyone advise me if this possible.
I’ve taken a pic of the charger for info.

 

[Lenny HB]

You need to look at the model number on your regulator, the SDC 10 is only 10 amp if you have the SDC 20 that is 20 amps and will be fine. Your cables look undersized, I would replace then with a minium of 4mm sq cables. Also the regulator is only a PWM type you would get better results from a decent MPPT type regulator.

 

[Ianm18]

Thanks Lenny I’ll have a look at the model no