<div>The function described by Todd was not present when I last evaluated the Apollo unit...and that would represent a major upgrade. Apollo's amp hour meter is much like the TriMetric...and I believe they have even licensed the original technology. The Apollo/Tri-Metric also cannot automatically calculate the battery efficiency...another major item on my wish list for high end battery monitors. </div>
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<div>The Blue Sky i series does integrate the ah meter and the charge controller logic better than anything I've seen but it can't buck down the voltage over as wide a range compared to the Apollo or other big MPPT controllers ...smaller amperage rating, too. Blue Sky i series does automatically calculate battery efficiency, however. </div>
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<div>All in all, the holy grail for the "every desirable feature" charge control integrated with "optimum" battery monitoring is still over the horizon. It's a terrific concept which makes the unobtainium all the more disappointing.</div>
<div><br clear="all">Mick Abraham, Proprietor<br><a href="http://www.abrahamsolar.com">www.abrahamsolar.com</a><br><br>Voice: 970-731-4675<br><br><br></div>
<div class="gmail_quote">On Thu, Mar 18, 2010 at 12:00 AM, <span dir="ltr"><<a href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote"><font size="4" face="arial">So do the charge controller and amp hour meter communicate so they agree on when the batteries are fully charged?<br>
<br>Todd
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<div class="h5"><br><br><br><br>On Wednesday, March 17, 2010 12:02pm, "R Ray Walters" <<a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>> said:<br><br>We have a couple out in the field. A bit of hassle to upgrade the firmware at first, but Apollo was very helpful, and sent us a free interface to do the update.
<div>I'm sure that's all cleared up for current versions, by now.<br>
<div>Now a couple of years later, we've had zero trouble, and we are running well over 70 amps continuous.</div>
<div>The wireless Trimetric meter option is a pretty good reason to use Apollo for off grid projects, too.</div>
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<div>R. Walters</div>
<div><a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a></div>
<div>Solar Engineer</div>
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<div>On Mar 16, 2010, at 6:14 PM, Nick Vida wrote:</div><br>
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<div style="MARGIN: 0px">wondering if any wrenches have any opinions on the Apollo charge controllers T80 in particular.<br></div>
<div style="MARGIN: 0px">I heard they had some technical issues not to long ago- is that resolved?</div>
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<div style="MARGIN: 0px">thanks,</div>
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