<div dir="ltr"><div>On Wed, Jan 20, 2016 at 11:44 AM, Tom Hayward <span dir="ltr"><<a href="mailto:tom@tomh.us" target="_blank">tom@tomh.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span class="">On Tue, Jan 19, 2016 at 5:16 PM, Kenneth Finnegan via aprssig<br><<a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>> wrote:<br>> I've been using the Tracer MPPT charge controllers from EP Solar for the<br>> last few years, and I've been really happy with them:<br><br></span>Is this actually MPPT? I've tested a few of the other cheap "MPPT"<br>charger controllers and they didn't actually implement MPPT.</blockquote></div><div><br></div>Yep. I've watched it periodically do full IV sweeps and come back and pick an operating point, and I recall its conversion efficiency was in decent agreement with what they call out in their datasheet.<div><br></div><div>Most PWM charge controllers stick MPPT in as a keyword, but it's pretty easy to spot them since PWM controllers don't require a huge heat sink like an MPPT does.<br><div><br></div><div>I don't think I've ever checked it for HF cleanliness, but I'm usually running UHF repeaters off of it so I've never cared.</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature">--<br>Kenneth Finnegan<br><a href="http://blog.thelifeofkenneth.com/" target="_blank">http://blog.thelifeofkenneth.com/</a></div></div>
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