pterrydactyl
New Member
I purchased a Rich Solar kit at 200 watts. I plan to expand to 400 watt soon. The kit came with a 30A PWM controller. Others have advised a MPPT. Of I go MPPT how large should I go? 40A or 60A or..? I do plan to have a dc to dc charger (40A) installed in truck. I will use 200A of battery. Does this affect the selection of either controller? 400 watt is big as it’ll get on this 28’ 2003 travel trailer..on my fifth wheel I’ll go lots bigger but for now let’s stick to what I’ve informed.