Roll Up Solar Panels / Ogre MPPT Controller
I would LOVE to get 10-12 amperes of 12 volt grade charging for my new group 31 Lifeline. But I have a motor-scooter size toad, that forces me to the roll-up kind of solar panel, and woe is me, the...
Forum Discussion
jrnymn7 wrote:
BFL,
I'm not sure, but I think the problem you had with matching up the panel and the load may be a different issue than what Mex had suggested I do. Would the controller itself constitute a load? If I understood, I think Mex was suggesting simulating the voltage of a single 24v panel, by bucking the voltage of two 12v panels in series, and sending that to the controller?
Mex has clarified as above. The issue was the long wire run from panel to controller where high voltage was the way to go, but that meant the controller would need to be expensive.
For a pair of portable 12s and PWM out to say 50ft IMO you don't need to get all complicated. IIRC Mex was talking about much farther out to the panels.
