Hi Jay; I'd second (3rd, 4th?) everyone else's comments that it probably isn't a good idea. I'd add that the diode will eat at least a volt, so that's not good for MPPT, or balancing. The one possible way to do this, might be to use a Vanner battery equalizer, which is designed to split an incoming charge source, and feed 2 batteries, without letting them "see" each other. I think they're only good for 24 v, though, so that might not work for your situation. The only other way I could see, is using a huge relay ( or paralleled relays) controlled by a C40 (or similar). You would lose both MPPT and PWM, and be back in the solar stone age (90s) though.
TIme to pull out the 2 big cables, and pull 4 smaller ones? Have fun, I actually like retrofitting old off grid stuff; it presents all sorts of interesting challenges like this. R. Walters r...@solarray.com Solar Engineer On Oct 20, 2010, at 9:06 AM, jay peltz wrote: > HI All, > > Say anyone ever paralleled mx/fm-60's? > > I have a unique situation that would be very expensive to pull additional > wire however the existing wire is large enough to need 2 fm-60s' > > If I put a diode between them so they don't feed each other any problems that > anyone knows of? > > thanks, > > jay > > peltz power > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
