A 300 watt inverter needs almost 30 amps at 12 volts. 10 gauge wire. Your not getting that out of the dash lighter socket. Check the power consumption on that small fridge. Some of them need as much power as full size, (for a shorter time). Take the watts and divide by 10, that how many amps should be available at 12 volt.

Dennis,
From my phone.
________________________________
From: Jim Ogul<mailto:jimogul70@GMAIL.COM>
Sent: ‎6/‎10/‎2013 5:26 PM
To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM>
Subject: Re: Mini Fridge

Ok.  I was figuring that a 1.7 cu ft refrigerator uses about 30 watts and
that wouldn't require all that much current.  Maybe my figures are off
here.  The thing is I already have a 300 watt inverter that plugs in the
cigarette lighter socket and I have my son's dorm refrigerator so I wanted
to experiment a bit but i don't want to burn out anything.

Jim

On Mon, Jun 10, 2013 at 12:29 PM, Jeff Lincoln <magikvw@gmail.com> wrote:

> I know absolutely nothing about electrical/wiring - but I would think that
> even with one of those small cig lighter inverters - this would be a huge
> draw on old wiring and such. I have a feeling the fuse wouldn't last too
> long.
>
> It's a good idea but like I said have a hunch it wouldn't go well.
>
> Thanks,
>
> Jeff
> '85 GL (Gertie)
> '78 Bus (Melissa) Patty's Bus
>
>
> On Mon, Jun 10, 2013 at 12:20 PM, Jim Ogul <jimogul70@gmail.com> wrote:
>
> > Has anyone tried using a minifridge (the kind they sell for dorm rooms
> > etc.) pluggged into an inverter off the cigarette lighter.  This seems
> like
> > a cheap alternative (since we already have both the fridge and and
> > inverter) to the Westy's which is pretty weak.
> >
> > Jim
> > 85 Westy
> > 87 Saab 900T (265,000 miles and going strong)
> > 68 Saab V4 (currently for sale on Ebay)
> > 99 Chevy s10
> > 2010 Suburau Forester
> >
>