I did include a 120V charger. Well, a 40A @ 13.5VDC power supply I had on
hand. Have only used it for testing last winter when the kitchen was being
Came in handy having a refrigerator, sink, microwave and lights for a few
weeks. Rainy days did see my battery droop with constant usage at night, so
I'm glad I had the backup in place. Normal use pattern is summer though,
and the solar keeps up fairly well when there's sun.
Hmm, the microwave runs off a 1200W inverter, I wonder if it could handle
an EVSE set to 6A? Might be able to charge enough to drive around the block
every other day.
On Tue, Sep 26, 2017 at 8:13 AM, Robert Bruninga <bruni...@usna.edu> wrote:
> Why not grid tie it all, and then simply charge the batterys from a
> battery chrager also plugged into 120v.
> -----Original Message-----
> From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Mike Scott via EV
> Sent: Tuesday, September 26, 2017 12:27 AM
> To: Electric Vehicle Discussion List
> Cc: Mike Scott
> Subject: Re: [EVDL] Solar powered RV
> My little trailer has 800W on the roof and is grid tied while it's in the
> driveway. I went with this inverter due to the size of the array:
> I got tired of unscrewing wires from the big terminal strips (12-32
> screws, who did that??) so I could adjust for different amounts of sun
> when keeping the lead-acid batteries topped up. Now I have a bank of DPST
> switches from the auto parts store so each panel can go the the charge
> controller or to the grid tie inverter. I'd sure like to find a circuit to
> selectively switch the panels over based on battery voltage... In
> summertime a 50W panel will fill the batts each day after I heat my coffee
> in the microwave.
> That's a second inverter that just takes 12V and makes 120VAC for the
> microwave. Had to use my EV battery cable making skills for the 1 or 2 AWG
> wires feeding that!
> Stand alone the loads are the microwave and refrigerator (10A almost
> continuously), plus LED lights, radio and a few fans, one of which is in
> the refrigerator vent and another is in the roof vent. Both those fans
> will come on if it gets too hot and on hot days it took about 100W to keep
> the batts up. Still hit 100 degrees inside. Time for new screens...
> On Sat, Sep 2, 2017 at 7:24 PM, Robert Bruninga via EV <email@example.com>
> > > Solar RV.
> > > I saw this and realized our solar future is very close.
> > https://www.curbed.com/2017/9/1/16241030/electric-rv-
> > motorhome-dethleffs-camper Lawrence Rhodes
> > It brags of 3 kW of solar arrays, but that is on all sides. Only one
> > side will see sun so the max power is about 1 kW max. And the panels
> > on the door and openable panels are not real, since the edges do not
> > even include complete cells.
> > Also I question the logic of cells on the bottom of the front
> > overhang. A lot of hype.... but is the future.
> > ANYTHING that sits in the sun allday should have solar panels on it.
> > Grid tie while sitting int he driveway and battery when camping.
> > I just bought a grid-tie inverter designed for 12v solar panels for
> > $67 bucks. But it is only good for 12v panels (Peak voltage of 28v
> > max). They did not say that in the add, just called it a 300W GT
> > inevrter. So I had to order another one that was 20-60 VDC that is
> > good for the more common home solar panels.
> > Bob
> > WB4APR
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