Re: Yes - it is the best buy, by far

Posted by jdemaris on October 21, 2006 at 16:18:46 from (66.218.19.78):

In Reply to: Re: Yes - it is the best buy, by far posted by Jon Hagen on October 21, 2006 at 12:30:11:

I think you're inserting a little hyperbole here. I said nothing about someone's batterie's being "boiled to death" as you put it. The last battery storage system that failed - that I have some knowledge of - is my neighbor's 5500 watt solar-electric system. His first batteries were Concored Sunextender AGMs. They failed before two years and there was nothing wrong with charging system. He replaced them with Rolls lead-acid and it's been fine ever since - with no changes in regard to charging or use. I have heard similar reports from several solar-electric intallers. Generally speaking, AGM batteries do not handle the deep and frequent draw-down that is common with such systems. The dealer simply stated that the batteries were probably not kept charged properly. The Concorde AGMs only have a one year replacement warranty on their Sunextender. To Optima's credit - their warranties range from 18 months to 36 months depending which version (I think there are three quality levels). With the Rolls/Surette lead-acid batteries - pretty much the same full-replacement warranty - and also - three levels of quality.
I don't know of anyone that has used Optima's of any sort for large battery banks - so I can't comment either way.

Replies:

• Re: Yes - it is the best buy, by far Jon Hagen 17:28:09 10/21/06 (1)
  • Re: Yes - it is the best buy, by far jdemaris 11:47:33 10/22/06 (0)

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