<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">HI Todd,<div class=""><br class=""></div><div class="">Thats not my understanding.</div><div class=""><br class=""></div><div class="">VRLA batteris come just like FLA, cycling and non cycling.</div><div class=""><br class=""></div><div class="">I can’t speak to the non cycling as I don’t use them.</div><div class="">But cycling VRLA are lead/antimony, not lead calcium.</div><div class=""><br class=""></div><div class="">jay</div><div class=""><br class=""></div><div class="">peltz power<br class=""><div><blockquote type="cite" class=""><div class="">On Dec 17, 2015, at 8:56 AM, <a href="mailto:toddcory@finestplanet.com" class="">toddcory@finestplanet.com</a> wrote:</div><br class="Apple-interchange-newline"><div class=""><font face="arial" size="4" style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">as i understand it agm batteries are lead calcium. my personal experience has shown me that lead calcium is THE battery for ups systems.</div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">to reiterate previous emails about this:</div><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">i have two grid tied systems here at home, both with battery backup (outback gvfx series) inverters. one has 1986 vintage, flooded lead calcium made by "globe battery", still going strong after 29 years! the other system has newer, 2008 vintage flooded lead calcium batteries made by surrette (fc-420).</div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">i add water every 3 to 4 years, equalize every 6 months to mitigate electrolyte stratification and clean the tops every spring.</div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">this thread was about off grid batteries, but for grid tie... </div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class="">todd</div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;" class=""><br class=""></div></font><br class=""></div></blockquote></div><br class=""></div></body></html>