<p>If the boat is insured or is going to leave US waters and hopes to be insured, better CYA it and check this out. NMEA may be of help also. https://www.nmea.org/content/STANDARDS/nmea_2000_certified_products</p>
<p>We did Marine electronics on the side and cruised our sailboat for a decade. It was great until we lost insurance and then learned to live with it. It got good again. Same thing now with offgrid and wildfires. Whatever I get into ends up with loss of insurance. Good Luck !</p>
<div>
<pre><strong><span style="font-size: small;">Dave Angelini Offgrid Solar
"we go where powerlines don't"
<a href="http://members.sti.net/offgridsolar/" target="_blank">http://members.sti.net/offgridsolar/</a>
e-mail <a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
</div>
<p>On Wed, 30 Jun 2021 15:50:15 -0400, Dave Tedeyan <dave@sungineersolar.com> wrote:</p>
<blockquote type="cite" style="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px; width:100%"><!-- html ignored --><!-- head ignored --><!-- meta ignored -->
<div dir="ltr">Hi All,
<div> </div>
<div>I am going to be working with someone who plans to completely electrify a boat. The electric motor is meant to run on nine 12V batteries, or 108V. The motor manufacturer recommends a charger that can run on 120V or 240V. But has anyone seen a charger that can take solar power and directly charge a battery bank of 108V? The alternative that I see here is to have two separate battery banks, one for the motor, and one for house loads. Then we would have the solar charge a 48V battery bank, and then use an inverter to charge the 108V battery bank. It seems inefficient, although that may be the only choice.</div>
<div> </div>
<div>A separate but related question: what is special about a marine inverter? If there is a 5kw charger for the battery bank, we will need a large inverter to handle this plus other AC loads, and I am not sure if there are "marine" inverters this large. And so other than concerns about getting wet, is there harm to putting a Radian, or a Sol-Ark on a boat?</div>
<div> </div>
<div>Cheers,</div>
<div>Dave</div>
<div> </div>
<div>-- <br />
<div class="gmail_signature" dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr"> </div>
<div dir="ltr">
<table style="border-spacing: 0px; border-collapse: collapse; color: #444444; width: 525px; font-size: 11pt; font-family: Arial,sans-serif;" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td style="font-family: Arial,sans-serif; padding: 0px 10px 0px 0px; font-size: 10pt; border-right: 1px solid #ecbd00; width: 125px; vertical-align: top;" rowspan="6" valign="top" width="125"><a style="color: #337ab7; background-color: transparent;" href="https://www.sungineersolar.com/"><img style="border: 0px; vertical-align: middle; width: 105px; height: auto;" src="https://webmail.sti.net/tuxedo/program/blocked.gif" alt="Logo" width="105" border="0" /></a></td>
<td style="padding: 0px 0px 0px 10px;">
<table style="border-spacing: 0px; border-collapse: collapse; background-color: transparent;" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td style="font-family: Arial,sans-serif; padding: 0px 0px 5px 10px; width: 400px; vertical-align: top;" valign="top"><span style="color: #ecbd00; font-size: 11pt; font-weight: bold;">Dave Tedeyan, P.E.<br /></span><span style="font-size: 11pt; font-weight: bold;"><span style="color: #ecbd00;">Owner | Sungineer Solar</span><br /></span></td>
</tr>
<tr>
<td style="font-family: Arial,sans-serif; padding: 5px 0px 5px 10px; font-size: 10pt; vertical-align: top; line-height: 17px;" valign="top"><span style="color: #ecbd00;"><span style="font-weight: bold;">p: </span></span><span style="font-size: 13.3333px;"><span style="font-size: 10pt; color: #000000;">he | him | his</span></span><span style="color: #ecbd00;"><span style="font-weight: bold;"><br />a: </span></span><span style="font-size: 10pt; color: #000000;">1653 Slaterville Rd.</span> <span style="font-size: 10pt; color: #000000;">| Ithaca, NY 14850</span><br /><span style="color: #ecbd00;"><span style="font-weight: bold;">w:</span></span><a style="color: #337ab7; background-color: transparent;" href="http://www.sungineersolar.com/"><span style="font-size: 10pt; color: #000000;"> www.sungineersolar.com</span></a><br /><span style="color: #ecbd00;"><span style="font-weight: bold;">c:</span></span><span style="font-size: 10pt; color: #000000;"> (607) 288-2898</span></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>