Forum Discussion
BFL13
Oct 18, 2014Explorer II
RJsfishin wrote:
Yeah, all you little straps, quit tryin to be big straps when you don't understand it all !
Heres a hint, 12v panels are for RVs and boats. 24v panels are made for houses,.....take it !
My 12v 300w system w/ a $8 controller works great. If I ever need another panel or 2, I would maybe series them up and go MPPT, but it sure isn't on my wish list.
BTW, I have a brand new 20 amp MPPT still in the box, not to speak of several PWMs, so if you think MPPT is so great, send me a $50 bill, and its yours. But tell ya right now, I only paid 12 bucks for it :)
That would be this RJ Special which I bought last year at his urging. :) It turned out to be a fake MPPT and is actually an ordinary PWM, but it does well at that job.
I used it for a while with my 130w panel. Its charging profile is to get to 14.5v and stay there till dark. The lights on it tell you what the state of play is--more lights means the battery is getting higher in SOC.
I sold this along with my 130w panel and the guy used it no problems all summer.
So actually this is a decent little controller as long as you know it is not MPPT and don't try to run a 24v panel with it :)
http://www.ebay.ca/itm/20A-MPPT-Solar-Panel-Battery-Regulator-Charge-Controller-12V-24V-Auto-Switch-KJ-/171112316078?pt=LH_DefaultDomain_0&hash=item27d716bcae
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