Help me pick a MPPT solar charge controller.
A little background info. This is for a truck camper with limited space. I would like to use the Lance factory 12ga solar wiring from the roof down to the charge controller. I can use larger wire/c...
Forum Discussion
Many options, depends on what you want.
Cheap working solution - 2*50 in parallel and PWM Grape 40 with existing wire. Won't cost much and won't give you much, 100W is so very little.
More wattage - scrap 2*50 and install 2*100 or 3*100 in series - OR - single 280W, all with MPPT and existing wire. Not too many people are installing 50W panels now, panels today are cheap and they last longer than RV itself.
A lot of MPPT are limiting max string voltage - true, but half-decent MPPT will have (at least) 100V limit, this is 2*280W = 560W in series.
Cheap working solution - 2*50 in parallel and PWM Grape 40 with existing wire. Won't cost much and won't give you much, 100W is so very little.
More wattage - scrap 2*50 and install 2*100 or 3*100 in series - OR - single 280W, all with MPPT and existing wire. Not too many people are installing 50W panels now, panels today are cheap and they last longer than RV itself.
A lot of MPPT are limiting max string voltage - true, but half-decent MPPT will have (at least) 100V limit, this is 2*280W = 560W in series.
