Solar Charge Controller question
Here's my set up: 2018 Coachman Viking 17BHS 21' Dual 6v batteries Solar panels: 2 Nature Power 100 watt Polycrystalline panels Tolerance: 3% Voltage at Pmax(Vmp) 18.0V Current at Pmax(Imp) 5...
Forum Discussion
bpounds wrote:Exactly. The only time I would buy a PWM controller, which I just did, was for a simple small wattage panel to keep my boat battery topped off while it is sitting at my dock.
We shouldn't even be having the PWM vs MPPT discussions these days. The info is out there for anyone who wants to even briefly study the question.
Price difference is so small now that PWM only makes sense for the smallest system, and when there is no chance for future increase.
You might even save most of the cost difference by using smaller conductors and higher voltage if there are more than 2 panels in the array. And who doesn't want as much energy as possible out of their investment?
