<div dir="auto"><div>Hmmm. I don't know..the ones I've seen do it never actually lost power. I had two at the same site do it and my intuition was that the mate was somehow responsible.</div><div><br></div><div data-smartmail="gmail_signature"><br> </div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Jan 11, 2026, 8:34\u202fAM Zeke Yewdall via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>One of my customers thinks it happens after the charge controller loses power due to a battery BMS shutdown. And the other one, it did happen on the charge controller that was disconnected for a while for a new array being wired in. So... I'm wondering, how does the FM100 store programming data? Is it in some sort of memory that requires power? And if so, does it have a coin battery in there or how does it remember the settings when battery power is removed? I know this is a common thing in old ham radios of a certain vintage, that they have an internal coin battery to remember settings and after 5 or 10 years, it has to be replaced. The Midnite Classics also have the coin battery in the display... so, does the FM100 have something like this?</div><div><br></div><div>Zeke</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">From: Tyrone Houck <<a href="mailto:tyronehouck@gmail.com" target="_blank" rel="noreferrer">tyronehouck@gmail.com</a>><br>
To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">re-wrenches@lists.re-wrenches.org</a>><br>
Subject: Re: [RE-wrenches] <br>Message-ID:<br>
<CAEqH54=<a href="mailto:DNxM-buzrijftd%2BZpnmkPe_haQy_7539RyxwcFDpSkA@mail.gmail.com" target="_blank" rel="noreferrer">DNxM-buzrijftd+ZpnmkPe_haQy_7539RyxwcFDpSkA@mail.gmail.com</a>><br>
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<br>
I have had that happen before on at least 3 different occasions.<br>
Specifically with the fm100. Totally random and couldn't come up with a<br>
logical explanation. I just reprogram and roll with it...always seemed odd<br>
though.</div><br><br></div>
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