All controllers have failures – most commonly due to user/installer errors. Of all the controllers we sell, Morningstar have been by far the most trouble free and has the best no-hassle warranty.
We have probably sold/installed around 100 to 200 of the SS-MPPT-15 controllers over the past year or so, and have seen almost zero problems that were not caused by a bad installation of some sort. Just on a side note, of all the controllers of all brands we have sold over the past decade, probably 3/4 of those returned by end users as “not working” has nothing wrong with them. From: Kent Osterberg Sent: Monday, January 24, 2011 10:39 AM To: RE-wrenches Subject: Re: [RE-wrenches] 10A Charge / load controller The spec sheet for the SS-MPPT says 75 volts maximum open circuit. Maximum PV power: 200 watts for 12-volt batteries and 400-watts for 24-volt batteries. While it is supposed to be protected from PV overload and PV high voltage, it doesn't seem surprising that failures that have been observed are in systems that are pushing on these limits. Fortunately, Morningstar stands behind their product. Kent Osterberg Blue Mountain Solar, Inc. bob ellison wrote: From memory it seems that the max voltage listed in the manual for the Sun Saver MPPT is 35 volts but I don’t have it handy. Bob Ellison From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Starlight Solar, Larry Crutcher Sent: Friday, January 21, 2011 8:38 PM To: RE-wrenches Subject: Re: [RE-wrenches] 10A Charge / load controller I have had failures with the Sunsaver MPPT. I have used them with a single Sanyo module in small battery systems. Perhaps they just can't handle the 50.9 Voc. Larry Starlight Solar Power Systems ----- Original Message ----- From: Maverick Brown [Maverick Solar] To: RE-wrenches Sent: Thursday, January 20, 2011 5:38 PM Subject: Re: [RE-wrenches] 10A Charge / load controller Try SunSaver MPPT. 15 amps, MPPT and load control (or light) control Use the MSC to connect the controller to your PC and adjust many settings and get log data. We use a lot of them and have had very few issues. Thank you, Maverick Maverick Brown BSEET, NABCEP Certified Solar PV Installer ® President & CEO Maverick Solar Enterprises, Inc. Office: 512-919-4493 Cell: 512-460-9825 Sent from an iPhone. On Jan 20, 2011, at 5:37 PM, "Jason Szumlanski" <ja...@fafcosolar.com> wrote: I’m looking for a ~10A charge controller for a 12V battery with adjustable LVD that goes up to at least 12V. Priorities in order are: 1. Small in size 2. Good 3. Cheap The best I can come up with now is the Xantrex C12. Looking for alternatives. Recommendations? Jason Szumlanski Fafco Solar -------------------------------------------------------------------------------- _______________________________________________ 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 Northern Arizona Wind & Sun - Electricity from the sun since 1979 -------------------------------------------------------------------- Online Solar Store Free Solar Discussion Forum --------------------------------------------------------------------
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