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<p>For disconnects, I'd just use Andersen quick connects. That's
what they use on forklifts and other industrial battery operated
machines. Also, the Magnum would act as the vehicle charger, and
would be a much better charger than the stock golf cart models.<br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 3/15/22 4:46 PM, Jason Szumlanski
wrote:<br>
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<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif">That's what I
was thinking- a MS4448 would be a nice option with a good
surge rating. </div>
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<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif">I'm trying to
make this work with little to minimal equipment onboard the
golf cart. Ideally, the battery would connect to a
stationary inverter/charger at the house via a
cable/connector. The PV would be permanently mounted also
and would be grid-tied for times the battery is not
connected. I am thinking this needs to be an AC coupled
scenario with a grid-tie inverter that is AC coupled to the
battery inverter. I'm hung up on how to safely connect the
battery to the inverter (and more importantly, disconnect
the battery from the inverter).</div>
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<div dir="ltr" class="gmail_attr">On Tue, Mar 15, 2022 at 6:29
PM Ray Walters <<a href="mailto:ray@solarray.com"
moz-do-not-send="true" class="moz-txt-link-freetext">ray@solarray.com</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Most carts run at 48vdc
these days. They either have eight 6 volt <br>
batteries, or six 8 v batteries. I would think that would
make a good <br>
match for power backup with a 4kw range inverter like the
Magnum MS4448.<br>
<br>
Ray<br>
<br>
On 3/15/2022 12:18 PM, Nick A Lucchese wrote:<br>
> Not sure what the golf cart fleets are these days but
decades ago as a youngster I worked at a course where all
the EZ-GO\u2019s were 36v nominal with all Trojan T-105\u2019s. Also
uncertain if still available or not but years ago the first
Cybo inverters I purchased were also intended for 36v
nominal battery banks. Perhaps George and the team still
offer that model. It\u2019s obviously a different type of
architecture and I didn\u2019t have any luck with the 4 amp 36v
charger on the inverter\u2019s AC output that was promoted but
surely you could figure your means of charging with perhaps
a Flexmax or similar. I had some issues with the hot water
heater model but the off grid model consistently performed
it\u2019s inverting function assuming there was a fan or some
sort of resistive or inductive load to keep the inverter
awake. The only other 36v inverter I can think of was the
Heart Transverter which was a big loss for a few of us.<br>
><br>
> <a
href="https://www.cyboenergy.com/products/offgridoverview.html"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.cyboenergy.com/products/offgridoverview.html</a><br>
><br>
> Best of luck Jason, Nick<br>
><br>
><br>
><br>
><br>
>> On Mar 14, 2022, at 3:48 PM, Jason Szumlanski <<a
href="mailto:jason@floridasolardesigngroup.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">jason@floridasolardesigngroup.com</a>>
wrote:<br>
>><br>
>> Every now and then I get questions here in the land
of hurricanes and golf courses about using golf carts as the
battery bank for a permanently mounted grid-tie home PV
system in a backup scenario. Does anyone have any ideas on a
good way to do something like this? The battery would need
to be able to be unplugged of course (not under load I
hope!) It's mostly DIY'ers trying to cobble together a
solution for a small critical load panel for their home.<br>
>><br>
>> The idea is becoming more popular as people hear
about using EVs for home backup. I'd like to get ahead of it
and maybe even offer a solution that's safe, legal, and
functional.<br>
>><br>
>> Jason Szumlanski<br>
>> Florida Solar Design Group<br>
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