Hi Allan, FYI, their data sheet shows cycle life at 50% DoD is 1850 or 5 years. The 20 year life is probably for standby use. I looked at these many years ago but I have not tried these because of price.
Larry On Feb 11, 2014, at 9:27 PM, Allan Sindelar <[email protected]> wrote: Has anyone tried these? This is my first awareness of them. http://www.renewableenergyworld.com/rea/companies/sbs-battery/products/stt-opzs-series-flooded-tubular-batteries Description: 20 year Lead-Selenium Tubular Plate Batteries: 12V 55-165Ah, 6V 220-330Ah, 2V 110-3585Ah Best to ask here first! Thank you, Allan -- Allan Sindelar [email protected] NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder, Positive Energy, Inc. A Certified B CorporationTM 3209 Richards Lane Santa Fe, New Mexico 87507 505 424-1112 office 780-2738 cell www.positiveenergysolar.com _______
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