<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Chris,<div><br></div><div>Moving from VRLA to flooded, the customer should know it takes about 20% more energy and longer charge time to get to 100% SoC. </div><div><br></div><div>Trojan states that charge current should not be more than 10-13% of C20 discharge rate. For the IND9, that's 46 to 60 amps maximum per string. VRLA can handle MUCH more.</div><div><br></div><div>Since sun-hours per day is the same and you need more energy to get 100%, more PV solar or more generator time may be required.</div><div><br></div><div>I have seen 3 different published specifications from Trojan Battery about charging their cells. One publication lists 2.45 to 2.79 Vpc. 2.79 volts!! Does anyone charge this high? I'm a fan of high voltage charging, but I generally don't go over 2.53 Vpc for flooded. But, since the IND9 data sheet lists 2.45 Vpc maximum, I'de stick with that.</div><div><br></div><div>Larry </div><div><div><br></div><div>3 attachments, Trojan charge specs.</div><div> <div><img id="68c8ed35-3497-4399-994f-a9e549194c94" height="193" width="320" apple-width="yes" apple-height="yes" src="cid:996C554A-3D37-4839-BB5F-C845F4025F7D@Home"></div><div><img id="790d038a-dcc1-415d-995e-5ce1649fdd35" height="80" width="320" apple-width="yes" apple-height="yes" src="cid:942FC11A-2CB4-461B-88BD-9CF3B77A0EB9@Home"></div><div><br></div><div><img id="68ef8d14-f539-4278-8eaa-eb9d1a75f4bd" height="86" width="320" apple-width="yes" apple-height="yes" src="cid:277504C7-C4DB-4239-A91B-524BFF79DD45@Home"></div><div><br></div><div><br>
<br><div><div>On Feb 19, 2014, at 9:36 AM, Chris Mason <<a href="mailto:cometenergysystems@gmail.com">cometenergysystems@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div dir="ltr">I just switched a customer from VRLA batteries to Trojan IND9. I changed all the battery settings to the numbers recommended by Trojan but I would be interested to hear any recommendations from experience. Please let me know if you have experience with the charge and discharge settings for this combination.<br clear="all">
<div><br></div>-- <br>Chris Mason<div>President, Comet Solar</div><div><a href="http://www.cometenergysystems.com/" target="_blank">www.comets</a><a href="http://olar.com/">olar.com</a></div></div></div></div></div></div></body></html>