Still Don't Get It (Solar)
What will charge 2 6v golf cart batteries better, a single 270 watt high voltage panel with mppt or two 135 watt 12v panels (parallel) with PWM and why???? Thanks. Gman
Forum Discussion
Grodyman wrote:
Thanks all, I'm considering portable. I use most power during winter when running furnace all night. I roughly figure I use about 40-45ah a 24 hr cycle based on my multi-meter readings in my 208ah bank. I read 12.4 first morning (running furnace overnight and watching 2 hr movie that evening off inverter), and after charging with WFCO onboard for two hours on the Honda 2000, ran heater all night and watched a movie again, and read about 12.3 the second morning. My Rockwood Minilite likes the heat it seems. In summer, without the furnace, I figure about half that consumption rate.
I'm thinking a 12 solar panel, maybe 80 watts, or two 60's, and using one of the Morningstar junctioin box mounted controllers.....
Gman
It must be warmer there when you have the furnace running. We use about 70-100AH of furnace/day in the colder months and 60-70Ah of other things no furnace in the summer.
Whatever, your portable solar set will do better with the controller near the batteries and not by the junction box at the panel(s) like you get with some of those "kits"
If you are a handyman type, you should just get the panel(s) and controller and wires separately taking advantage of sales and any no-shipping there might be and build your own portable with things where they should be.
