Jason,
Not much to elaborate on. A single 200 watt Sanyo module, about 25' of 8 gauge wire, lowest temperature 20 degrees. When the SunSaver controllers fail, they cause a short circuit at the battery terminals. Morningstar handled the warranty as they do all SunSaver warranty's, quickly sending replacements with return postage for the defective unit. We have had 4 SunSaver failures since November 1.
I sell 150+ charge controllers at our retail store each season (Nov. ~ Dec.), most of which are MPPT. Reliability is critical to me and I pay very close attention to failures. Most of my customers are mobile and not able to return to our store if a product fails. I have tested and sold many MPPT models. The Phocos MPPT controller I was evaluating failed and we have had our share of Outback and BZ controller failures. Blue Sky Energy has had a few bad controllers but compared to the volume of BSE products we sell (over 1100) they have been the most reliable. I have not yet tested Steca, TriStar, or Xantrex MPPT controllers.
Larry
Starlight Solar Power Systems
-------- Original Message --------
Subject: Re: [RE-wrenches] 10A Charge / load controller
From: Jason Lerner <[email protected]>
Date: Sat, January 22, 2011 11:56 am
To: RE-wrenches <[email protected]>
Hi Larry,I am curious about the failures you have had, could you elaborate?Thanks,Jason LernerWaldron Power and Light Co.On Jan 21, 2011, at 5:37 PM, Starlight Solar, Larry Crutcher wrote: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.LarryStarlight Solar Power Systems
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